HCNA-transmission Practice Guide

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OptiX SDH Networking and Self-Healing Protection

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SDH Network Topologies...............................................……………….....................Page 2

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Survivable networks and their protection mechanisms…………………….…………Page 14

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Through this course, trainees should be able to: 

List the SDH different topologies structures, features and applications.

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Have idea about the basic concept of the SDH network protection. And understand

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the network objectives, application architecture, switching initialization and restoration criteria, characteristics, network capacity of different types of network protection. 

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ITU-T Recommendation G.841 (Oct, 1998) Types and characteristics of SDH network protection architectures

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References 

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ITU-T Recommendation G.810 (Aug, 1996) Definitions and terminology for synchronization networks ITU-T Recommendation G.803 ITU-T Recommendation G.803 (Aug, 2003) Architecture of transport networks based on the synchronous digital hierarchy (SDH)

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The network topology, the geometrical layout of SDH network nodes and transmission lines, reflects the physical connection of the network. The network topology is important in the sense that it determines the performance, reliability and cost-effectiveness of an SDH

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network.

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The chain network is simple and economical at the initial application stage of SDH equipment. For a chain network, it’s more difficult and more expensive to protect the traffic, compared with a ring network. The chain network is used in cases where the traffic

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is unimportant or where the traffic load is small so that we don’t have to care about the traffic protection.

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In the star network, the hub node selects routes and passes through the traffic signals for all the other nodes. As a result, the hub node is able to manage the bandwidth resources thoroughly and flexibly. On the other hand, there is the possibility of a potential bottleneck

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of bandwidth resources. Besides, the equipment failure of the hub node may result in the breakdown of the entire network.

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A tree structure can be considered as the combination of chain and star structures. It is suitable for broadcast service. However, due to the bottleneck problem and the optical power budget limit, it is not suitable for bidirectional traffic.

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The ring network is the most widely used network for SDH transmission networks.

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In such a structure, any traffic between two adjacent nodes can be directly add/drop between them. For traffic between two non-adjacent nodes, we have to configure the

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add/drop traffic at the source node and the sink node. And the pass-through traffic in between those two nodes must be created as well. 

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The ring network is highly survivable. The most obvious advantage of a ring network is its high survivability that is essential to modern optical networks with large capacity. Thus, the ring network enjoys very broad applications in SDH networks.

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Mesh networks are such communications networks in which many nodes are interconnected with each other via direct routes. In such topological structure, if direct routes are used in the interconnection of all the nodes, this structure is considered as an

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ideal mesh topology. In a non-ideal mesh topological structure, the service connection between nodes that are not connected directly is established through route selection and

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transiting via other nodes. 

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In a mesh network, no bottle neck problem exists. Since more than one route can be selected between any nodes, when any equipment fails, services can still be transmitted smoothly through other routes. Thus, the reliability of service transmission is increased. However, such networks are more complicated, costly and difficult to manage. Mesh networks are very suitable for those regions with large traffic.

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Tangent ring networks / Intersectant ring networks/ Not protection chain.

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In selecting a topological structure, many factors should be considered. For example, the network should be highly survivable, easy to configure, suitable to add new services, and

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simple to mange. In a practical communications network, different layers adopt different topological structures.

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The advantage of sub-network can simplify the big network, make it easy to maintenance.

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The concept of sub-network is introduced in Huawei OptiX series equipment and network management systems in order to facilitate network topology management, security management, tributary interface expansion, and traffic management.

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In practical applications, it simplifies the topology structure of complicated networks and thus enables hierarchical management.

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Modern society is getting more and more dependent on communications with the development of science and technologies, and so higher requirements to network security are being brought forward. Thus the concept of survivable network comes into being. The

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following will deal with the concepts of survivable network.

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Please pay attention to that the network can only restore services here. It cannot repair the failure in the network, which cannot do without human intervention.

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So there should have protection channels to carry over the services in the working

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channels. The first requirement for survivability of network is there should have protection routes or standby routes. 

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A survivability also need something else. Nodes in the network must have the intelligence to check out the failure occurred and inform corresponding units of doing relative protection operation. And the nodes also should have powerful cross-connect capability to implement the protection operation.

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For the survivable network, the protection object can be the physical or electronic.

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Unidirectional traffic and bidirectional traffic are named regarding the traffic flow directions in the ring. A unidirectional ring means that traffic travel in just one direction, e.g. clockwise or counter-clockwise. While in a bidirectional ring, traffic signals go in two

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directions, one opposite to another. 

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Protection modes can be divided into two kinds: 1+1 and 1:N. In 1+1 protection mode, every working system is protected by a dedicated protection system. But in 1:N protection mode, N systems share one protection system; and when the system is in normal operation, the protection system can also transmit extra traffic. Thus a higher efficiency can be obtained than that of 1+1 system.

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For multiplex section protection ring, traffic protection is based on multiplex section. Switching or not is determined by signal qualities of the multiplex section between each

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span of nodes.

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The network has two channels (two pairs of fibers): working (active) channel and protection (standby) channel.

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When the network is normal (i.e. no failure on working channel), working channel is used

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to transport the traffics.

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When the working channel is failed, use the protection channel.

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Linear Multiplex Section (MS) protection is one of multiplex section protections. Linear multiplex section protection switching can be a dedicated or shared protection mechanism. It protects the multiplex section layer, and applies to point-to-point physical networks. One protection multiplex section can be used to protect the normal traffic from a number (N) of working multiplex sections. It cannot protect against node failures. It can operate in a unidirectional or bidirectional manner, and it can carry extra traffic on the protection

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multiplex section in bidirectional operation.

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Source node: concurrent sending

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Sink node: selective receiving

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Out of 1+1 linear multiplex section protections, some modes require APS protocol during the switching process, some don’t require. For 1  1 unidirectional switching, the signal selection is based on the local conditions and requests. Therefore each end operates

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independently of the other end, and bytes K1 and K2 are not needed to coordinate switch action.

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When the network has no failure, N working channels can transmit the normal traffic while the protection channel transmits extra (unimportant) traffic or it transmits no traffic.

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Suppose the fiber from NE A to NE B of the working channel 1 is broken. NE B detects

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R_LOS alarm and sends a request to NE A to switch the services on the failed channel to the protection channel.

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Upon receiving the request, NE A bridges the service on the failed channel to the protection channel.

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NE B get the information from NE A and switch to select the service from the protection channel.

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NE A switches to select the service from the protection channel. This step completes the switching of the service on the faulty channel to the protection channel for both directions.

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When the working channel 1 repaired, the _RLOS alarm disappears. NE B sets the K1 byte to “Wait-To-Restore (WTR)” state. If WTR state lasts for a special time (10 minutes by default), it switches to select the signal from the working channel and sends “No Request”

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signal to the NE A using K1 byte. 

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NE A releases the bridge and replies with the same indication on K1 byte. The selector at the NE A is also released.

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Receiving this K1 byte causes the NE B to release the bridge. This step completes the protection recovery.

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In 1+1 protection mode, every working system is protected by a dedicated protection system. But in 1:N protection mode, N systems share one protection system; and when the system is in normal operation, the protection system can also transmit extra traffic. Thus a

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higher efficiency can be obtained than that of 1+1 system, but a more complicated APS protocol is needed. This protection mode mainly protects the normal traffic in case optical

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cable of the working multiplex section is cut off or multiplex section performance degrades.

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Answer 

Linear 1+1 MS

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Linear M:N (M=1)

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In OSN networking application, there is no PP ring. But when we need to create a protection sub-net when using the NMS T2000.

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The protection switching principle of two-fiber bidirectional path protection ring is

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basically the same as that of unidirectional path protection ring, except that in two-fiber bidirectional path protection ring, the route of receiving signals is consistent with that of sending signals 

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Two-fiber unidirectional MS dedicated protection ring is composed of two fibers. Working channels and protection channels are carried over different optical fibers. Of course, fiber P1 can be used to carry extra traffic when not used for protection. The two-fiber unidirectional Multiplex Section dedicated protection ring is seldom used in actual applications since it has no advantages over either the two-fiber unidirectional path

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protection ring or two-fiber bidirectional multiplex section shared protection.

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The orderwires can be passed through used the backboard in the dual slots

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When we are facing the sub-rack, the left hand side is the West line board, the right hand side is the East line board

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The W was used for the source node

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The E was used for the sink node

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On each fiber, half the channels are defined as working channels and half are defined as protection channels. The normal traffic carried on working channels in one fiber are protected by the protection channels in another fiber traveling in the opposite direction

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around the ring. This permits the bidirectional transport of normal traffic. Only one set of overhead channels is used on each fiber.

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For example, a STM-16 system shall assign #1--- #8VC4 as the working channels, #9---#16 as the protection channels. One fiber of #9---#16 are to protect #1---#8 of another fiber.

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For two-fiber bidirectional multiplex section protection rings, as their traffic have uniform routes and are sent bidirectional, time slots in the ring can be shared by all nodes, so the total capacity is closely related to the traffic distribution mode and quantity of nodes on

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the ring.

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When a node determines that a switch is required, it sources the appropriate bridge request in the K-bytes in both directions, i.e. the short path and long path.

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The destination node is the node that is adjacent to the source node across the failed span.

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When a node that is not the destination nodes receives a higher priority bridge request, it enters the appropriate pass-through state. In this way, the switching nodes can maintain

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direct K-byte communication on the long path. Note that in the case of a bidirectional failure such as a cable cut, the destination node would have detected the failure itself and sourced a bridge request in the opposite direction around the ring. 

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When the destination node receives the bridge request, it performs the bridge and bridges the channels that were entering the failed span onto the protection channels in the opposite direction. In addition, for signal fail-ring switches, the node also performs the

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switch to protection channels.

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WTR: wait to restore

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APS requests are also initiated based on multiplex section and equipment performance criteria detected by the NE. All the working and protection channels are monitored regardless of the failure or degradation conditions (i.e. after a switch has been completed,

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all appropriate performance monitoring is continued). The NE initiates the following bridge requests automatically: Signal Failure (SF), Signal Degrade (SD), Reverse Request (RR), and

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Wait to Restore (WTR). The bridge requests are transmitted from NE to NE (not from NMS to NE).

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The APS controller is responsible for generating and terminating the APS information carried in the K1K2 bytes and implementing the APS algorithm. With the switching state of each NE, the APS controller status is also changed.

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For two-fiber bidirectional multiplex section protection rings, as their traffic have uniform routes and are sent bidirectional, time slots in the ring can be shared by all nodes, so the total capacity is closely related to the traffic distribution mode and quantity of nodes on

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the ring. The network capacity for two-fiber bidirectional multiplex section ring is ½ *M*STM-N (M is the number of nodes on the ring, STM-N is the STM level). If we count

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the protection channels as well, the maximum traffic load that a two-fiber bidirectional MS shared protection ring can carry is M*STM-N. Nevertheless, half of the traffic would not be protected in case of fiber failures.

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Four-fiber MS shared protection rings require four fibers for each span of the ring. Working and protection channels are carried over different fibers: two multiplex sections transmitting in opposite directions carry the working channels while two multiplex sections,

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also transmitting in opposite directions, carry the protection channels. This permits the bidirectional transport of normal traffic. The multiplex section overhead is dedicated to

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either working or protection channels since working and protection channels are not transported over the same fibers.

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In the normal situation, the services will be transmitted on the working fibers

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When the fibers between two nodes broken, the switching will happen between these two nodes



In the other sections, the services will be transmit on the original routes

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When all the fibers between two NEs broken, the ring switch happens



All the services will go to the protection fibers

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APS requests are also initiated based on multiplex section and equipment performance criteria detected by the NE. All the working and protection channels are monitored regardless of the failure or degradation conditions (i.e. after a switch has been completed,

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all appropriate performance monitoring is continued). The NE initiates the following bridge requests automatically: Signal Failure (SF), Signal Degrade (SD), Reverse Request (RR), and

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Wait to Restore (WTR). The bridge requests are transmitted from NE to NE (not from NMS to NE).

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For four-fiber bidirectional multiplex section protection rings, as their traffic have uniform routes and are sent bidirectional, time slots in the ring can be shared by all nodes, so the total capacity is closely related to the traffic distribution mode and quantity of nodes on

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the ring. The network capacity for four-fiber bidirectional multiplex section ring is M*STMN (M is the number of nodes on the ring; STM-N is the STM level). If we count the

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protection channels as well, the maximum traffic load that a four-fiber bidirectional MS shared protection ring can carry is 2*M*STM-N. Nevertheless, half of the traffic would not be protected in case of fiber failures.

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K1 bits 1-4 carry bridge request codes. K1 bits 5-8 carry the destination node ID for the bridge request code indicated in K1 bits 1-4.

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As network structures are becoming more and more complicated, the sub-network connection protection (SNCP) is the only traffic protection mode that can be adapted to various network topological structures with a fast switching time.



The protection mechanism of SNCP is similar to the PP ring. But for SNCP, the protection function will be completed in the cross-connect unit not PDH unit.

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As shown in the figure , SNCP uses the 1+1 protection mode. Traffics are simultaneously sent on both the working and protection sub-network connection. When the working subnetwork connection fails, or when its performance deteriorates to a certain level, at the

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receiving end of the sub-network connection, the signal from the protection sub-network connection is selected according to the preference selection rule. Switching usually takes

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the unidirectional switching mode, thus it needs no APS protocol.

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

The protection mechanism of SNCP ring is concurrent sending in the transmitting end and selective receiving in the receiving end.



Here is a ring chain combination network with 5 nodes. The ring network is SNCP ring.



Suppose that there have E1 services from node A to the end node of the chain. The services will concurrently sent to both working SNC and protection SNC. After passing

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through subnetwork1 and subnetwork2 separately, they both reach node C. there is a selector in node C, the SNC termination node. Normally, node C will receive the service from the working SNC, then pass through to the line unit in the chain.

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TU-LOM (HP-LOM): tributary unit – loss of multi-frame, a consecutive of 2-10 frames of H4 are not in the order of the multi-frame or have invalid H4 values.



TU-LOP: tributary unit loss of pointer, a consecutive of 8 frames receives invalid pointers or

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NDF. 

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HP-TIM: higher order path trace identifier mismatch, what J1 should receive is not consistent with it actually receives, generating this alarm in this terminal.



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HP-SLM: higher order path signal label mismatch, what C2 should receive is not consistent with it actually receives, generating this alarm in this terminal.

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If the signal failure recovers in any way, node C would switch back to receive services from working SNC after 10 minutes.



10 minutes is the default restoration time. It can be set from 5 to 12 minutes.

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Ethernet Configuration Practice ei w a Guide u ISSUE 1.00

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Table of Contents Course Instruction ........................................................................................................................ 1 About this course .........................................................................................................................1 Course objectives ........................................................................................................................1 Learning Notes.............................................................................................................................1 Relevant Materials .......................................................................................................................1

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Chapter 1 EPL Service Configuration using Station by Station Method ......................................2

1.1 Laboratory Network Topology Introduction ............................................................................2 1.2 Service Requirement .............................................................................................................3 1.3 Parameters Description .........................................................................................................3 1.4 Configuration Procedure ........................................................................................................5 1.5 Test Service Configuration ................................................................................................. 19

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Chapter 2 EVPL Service Configuration using Station by Station Method (PORT-Shared) .......20 2.1 Laboratory Network Topology Introduction ......................................................................... 20 2.2 Service Requirements ........................................................................................................ 21 2.3 Parameters Description ...................................................................................................... 21 2.4 Configuration Procedure ..................................................................................................... 25 2.5 Test Service Configuration ................................................................................................. 48

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Chapter 3 EVPL Service Configuration using Station by Station Method (VCTRUNK Shared)50 3.1 Laboratory Network Topology Introduction ......................................................................... 50 3.2 Service Requirements ........................................................................................................ 51 3.3 Parameters Description ...................................................................................................... 51 3.4 Configuration Procedure ..................................................................................................... 54 3.5 Test Service Configuration ................................................................................................. 67

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Chapter 4 EPLAN Service Configuration using Station by Station Method............................... 70 4.1 Laboratory Network Topology Introduction ......................................................................... 70 4.2 Service Requirement .......................................................................................................... 71 4.3 Parameters Description ...................................................................................................... 71 4.4 Configuration Procedure ..................................................................................................... 74 4.5Test Service Configuration .................................................................................................. 94

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Chapter 5 EVPLAN Service Configuration using Station by Station Method ............................ 97

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5.1 Laboratory Network Topology Introduction ......................................................................... 97 5.2 Service Requirement .......................................................................................................... 98 5.3 Parameters Description ...................................................................................................... 98 5.4 Configuration Procedure ................................................................................................... 103 5.5 Test Service Configuration ............................................................................................... 131

Chapter 6 EPL Configuration by Trail Method .........................................................................134 6.1 Laboratory Network Topology Introduction ....................................................................... 134 6.2 Service Requirement ........................................................................................................ 135 6.3 Parameters Description .................................................................................................... 135 6.4 Configuration Procedure ................................................................................................... 137 iii

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6.5 Test Service Configuration ............................................................................................... 144

Chapter 7 EVPL Configuration by Trail Method (VCTRUNK Shared) .....................................145 7.1 Laboratory Network Topology Introduction ....................................................................... 145 7.2 Service Requirements ...................................................................................................... 146 7.3 Parameters Description .................................................................................................... 146 7.4 Configuration Procedure ................................................................................................... 149 7.5 Test Service Configuration ............................................................................................... 158

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OHCNATS11 Ethernet Configuration Practice Guide

Course Instruction About this course This course is applicable to Huawei OptiX OSN 3500 product; This course is mainly used for OptiX OSN 3500 Transmission Network Academy Certification Training purpose.

Course objectives

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Upon completion of this course, you will be able to: 





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To get familiarize with the hardware device through the basic equipment configuration operation; To get familiarize with the theory of Ethernet Service through different Ethernet service configuration; To get familiarize with U2000 station by station configuration method for EPL, EVPL, EPLAN and EVPLAN; To get familiarize with U2000 trail configuration method for EPL and EVPL.

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Learning Notes

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According to lab equipment availability, this lab experiment will be carried out in group rotation. You should be well prepared before the lab experiment in order to save time. There will be 5 sets of OptiX OSN 3500 and 1 set U2000 NMS computer. For the ID of each NE, please refer to the actual NE ID allocation.

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Before doing any service configuration for this practice guide, you should be familiar with the basic operation of U2000 and PDH service configuration.

Relevant Materials 《OptiX OSN 3500 product documentation》

1

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OHCNATS11 Ethernet Configuration Practice Guide

Chapter 1 EPL Service Configuration using Station by Station Method

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1.1 Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500. The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12. The GNE and board slot number can be changed according to the actual situation during the configuration. One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

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Network Elements

#5

NE B

#5

NE C NE D

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Ethernet board slot number

NE A

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OHCNATS11 Ethernet Configuration Practice Guide

1.2 Service Requirement Service requirement description：Company H has two branches located at NE A and NE C needed an Ethernet service communication with 6Mbits/s bandwidth.

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1.3 Parameters Description 

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EPL service of company H：

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−

SDH service link time slot number 1 to 3 of VC-12 in VC-4 #1 （VC4-1:VC12:1-3） ，is used for NE A and NE C, while service in NE B is configures as pass-through.

−

Time slot 1 to 3 of VC-12 in VC-4 #4 of N2EFS4 board in slot number 4 （VC4-4:VC12:1-3） of NE A and NE C is used.

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Parameters of external ports on the Ethernet board:

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NE A

NE C

Board

N2EFS4

N2EFS4

Port

PORT1

PORT1

Enabled/Disabled

Enable

Enable

Entry Detection

Enable

Enable

TAG

Access

Access

Default VLAN ID

100

100

Port Type

PE

PE

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OHCNATS11 Ethernet Configuration Practice Guide



Parameters of internal ports on the Ethernet boards: Parameter



NE A

NE C

Board

N2EFS4

N2EFS4

Internal Port

VCTRUNK1

VCTRUNK1

Bound Path

VC4-4:VC12-1～VC12-3

VC4-4:VC12-1～VC12-3

Entry Detection

Enable

Enable

TAG

Tag Aware

Tag Aware

Port Type

PE

PE

Parameters of the EPL service（Same parameters on A and C）: Parameters Board

N2EFS4

Service Type

EPL

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Source C-VLAN

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Sink C-VLAN (e.g. 1,3-6)

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Bidirectional

Source Port

(e.g. 1,3-6)

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EPL service of Company H

Service Direction

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Null

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OHCNATS11 Ethernet Configuration Practice Guide

1.4 Configuration Procedure Configuration at NE A 

Step 1 Configure Ethernet Port Parameters:

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1、 Login to U2000 Main Topology.

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2、 Right click on NE A to select “NE Explorer”.

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3、 Select N2EFS4 board from the Board List.

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OHCNATS11 Ethernet Configuration Practice Guide

4、 From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface.

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5、Select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board, all the ports are disabled by default. Port 1 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and select “Enabled” as shown below.

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After selecting, click the “Apply” button at the right bottom of the panel.

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7、Next, click on the “TAG Attributes” tab.

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8、At the “TAG” column, double-click and select “Access” for Port 1 follow by changing the “Default VLAN ID” to 100. After done selecting, remember to click on the “Apply” button at the bottom right of the panel to activate the changes.

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OHCNATS11 Ethernet Configuration Practice Guide 

Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、As shown on the diagram below, at this moment there is not any service at this board. Click on the “New” button to create a new Ethernet Line service.

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3、As shown in the diagram below is the Create Ethernet service configuration panel. Select “PORT1” at the Source Port and “VCTRUNK1” as the sink port. No changes are needed for the rest of the option as shown below.

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4、At this moment, the “Bound Path” panel is empty. We need to configure a bound path for the VCTRUNK1. Click the “Configuration” button, and the below diagram will be shown. Click on the “>>” button to bound the timeslot needed to VCTRUNK1. At this time, we click 3 times on the “>>” button, as we have assigned 3 timeslots at the beginning of the configuration which is VC4-4:VC12:1~3; total of 3 VC12s. Make sure the correct timeslot is bounded then click on the “OK” button at the bottom right of the panel and return to the Create Ethernet Line configuration panel.

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OHCNATS11 Ethernet Configuration Practice Guide

5、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7、Finally the Ethernet Line service has been successfully created and the Ethernet service will be displayed in the Ethernet Line panel.

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Step 3 Configure SDH service: 9

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1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、There should not have any service created yet at the SDH Service Configuration panel. Click on the “Create” button to create a new SDH service.

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OHCNATS11 Ethernet Configuration Practice Guide

4、At the Create SDH service panel, select the correct information from the options. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). After obtaining display as shown below, (The “Source Slot” and the “Sink Slot” position have to be the same as the actual board slot number), click “OK”.

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5、At this moment, the system will show a newly created SDH service on the panel, the necessary configuration at NE A station is done, you can now close the NE explorer of NE A.

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OHCNATS11 Ethernet Configuration Practice Guide

Configuration at NE B At station NE B, there is no add/drop of Ethernet service, therefore station NE B only need to create a pass-through SDH service. Configuration service steps is the same as previous, therefore only final result of the configured service is shown at diagram below.

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Configuration at NE C 

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Step 1 Configure Ethernet Port Parameters:

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1、Login to U2000 Main Topology.

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2、Right click on NE C to select “NE Explorer”.

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OHCNATS11 Ethernet Configuration Practice Guide

3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface.

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5、Select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board, all the ports are disabled by default. Port 1 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and select “Enabled” as shown below. After selecting, click the “Apply” button at the right bottom of the panel.

7、Next, click on the “TAG Attributes” tab.

8、At the “TAG” column, double-click and select “Access” for Port 1 follow by changing the “Default VLAN ID” to 100. After done selecting, 13

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OHCNATS11 Ethernet Configuration Practice Guide

remember to click on the “Apply” button at the bottom right of the panel to activate the changes.



Step 2 Configure Ethernet Line service : 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、As shown in the diagram below is the Create Ethernet service configuration panel. Select “PORT1” at the Source Port and “VCTRUNK1” as the sink port. No changes are needed the options as shown below.

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OHCNATS11 Ethernet Configuration Practice Guide

and the below diagram will be shown. Click on the “>>” button to bound the timeslot needed to VCTRUNK1. At this time, we click 3 times on the “>>” button, as we have assigned 3 timeslots at the beginning of the configuration which is VC4-4:VC12:1~3; total of 3 VC12s. Make sure the correct timeslot is bounded then click on the “OK” button at the bottom right of the panel and return to the Create Ethernet Line configuration panel .

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5、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE C” at the NE Explorer.

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7、Finally the Ethernet Line service has been successfully created and the Ethernet service will be displayed in the Ethernet Line panel .

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OHCNATS11 Ethernet Configuration Practice Guide

2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、There should not have any service created yet at the SDH Service Configuration panel. Click on the “Create” button to create a new SDH service.

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4、At the Create SDH service panel, select the correct information from the options. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). After obtaining display as shown below, (The “Source Slot” and the “Sink Slot” position have to be the same as the actual board slot number), click “OK”.

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5、At this moment, the system will show a newly created SDH service on the panel, all the necessary configuration at NE C station is done, you can now close the NE explorer of NE C.

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OHCNATS11 Ethernet Configuration Practice Guide

1.5 Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. In order for us to test, two PCs are needed. Each PC is connected to port 1 of NE A and NE C. In the command prompt, use the “ping” command to test whether the services are configured successfully. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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OHCNATS11 Ethernet Configuration Practice Guide

Chapter 2 EVPL Service Configuration using Station by Station Method (PORT-Shared)

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2.1 Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500.

i e aw

The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12.

u h . g n

i n ar

One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

Ethernet board slot number

NE A

#5

NE B

#5

NE C

c r u o s e R NE D NE E

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Network Elements

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#5

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#5 #5

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OHCNATS11 Ethernet Configuration Practice Guide

2.2 Service Requirements The headquarters of company H; H1 is located to NE A, while there are two branches which are H2 and H3 are located to NE B and NE D each. Both branches needed to have Ethernet communication with the headquarters and a bandwidth of 2Mbits/s is needed each.

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2.3 Parameters Description

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The network planning is shown below:

1. EVPL service between company H headquarters, H1 and branch H2;

h

2. EVPL service between company H headquarters, H1 and branch H3;

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: s e

EVPL service between company H headquarters, H1 and branch H2:

c r u o s e R 

−

Use VC-12 timeslot number 4 of VC4 number 1 for SDH link between NE A and NE B（VC4-1:VC12:4）.

−

Use VC-12 timeslot number 4 of VC4 number 4（VC4-4:VC12:4） of N2EFS4 board for NE A and VC-12 timeslot number 1 of VC4 number 4 （VC4-4:VC12:1）of N2EFS4 board for NE B to add drop services.

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OHCNATS11 Ethernet Configuration Practice Guide 

Parameters of external Ethernet ports on the Ethernet boards: Parameters

NE A

NE B

Board

N2EFS4

N2EFS4

Port

PORT2

PORT1

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Disabled

TAG

Tag Aware

Tag Aware

PE

PE

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Default VLAN ID Port Type



ni

ng

L

r a e

NE A

Board

N2EFS4

Internal Port

VCTRUNK2

Bound Path

VC4-4:VC12-4

Entry Detection

Enabled

TAG

: s e

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h

Default VLAN ID

100

Port Type

PE

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NE B

N2EFS4 VCTRUNK2 VC4-4:VC12-1 Disabled

Access

c r u o s e R 

i n ar

Parameters of internal ports on the Ethernet boards: Parameters

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o c .

Tag Aware

PE

EPL Service Parameters (NE A station parameters): Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT2

Source Port C-VLAN(e.g.1,3-6)

100

Sink Port

VCRTUNK2

Sink C-VLAN(e.g. 1,3-6)

100

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OHCNATS11 Ethernet Configuration Practice Guide



EPL Service Parameters (NE B station parameters): Parameters





EPL service of company H

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT1

Source Port C-VLAN(e.g.1,3-6)

100

Sink Port

VCRTUNK2

Sink C-VLAN(e.g. 1,3-6)

100

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EVPL service between company H headquarters, H1 and branch H3: −

Use VC-12 timeslot number 1 of VC4 number 1 for SDH link between NE A and NE D（VC4-1:VC12:1）.

−

Use VC-12 timeslot number 5 of VC4 number 4（VC4-4:VC12:5） of N2EFS4 board for NE A and VC-12 timeslot number 1 of VC4 number 4 （VC4-4:VC12:1）of N2EFS4 board for NE D to add drop services.

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Parameters of external Ethernet ports on the Ethernet boards:

c r u o s e R

Parameters

ng

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NE A

NE D

Board

N2EFS4

N2EFS4

Port

PORT2

PORT1

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Disabled

TAG

Tag Aware

Tag Aware

PE

PE

Default VLAN ID Port Type

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OHCNATS11 Ethernet Configuration Practice Guide 

Parameters of internal ports on the Ethernet boards: Parameters



NE A

Board

N2EFS4

N2EFS4

Internal Port

VCTRUNK3

VCTRUNK1

Bound Path

VC4-4:VC12-5

VC4-4:VC12-1

Entry Detection

Enabled

Disabled

TAG

Access

Tag Aware

Default VLAN ID

200

Port Type

PE

Service Type

EPL

: p tt

Service Direction

Bidirectional

h

ni

L

r a e

PORT2

Source C-VLAN(e.g. 1,3-6)

200

Sink Port

VCRTUNK3

Sink C-VLAN(e.g. 1,3-6)

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N2EFS4

c r u o s e R

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EPL service of company H

Board

: s e

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EPL Service Parameters (NE A station parameters):

Source Port

u h . g n

PE

Parameters



NE D

200

EPL Service Parameters (NE D station parameters): Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT1

Port C-VLAN(e.g. 1,3-6)

200

Sink Port

VCRTUNK3

Sink C-VLAN(e.g. 1,3-6)

200

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OHCNATS11 Ethernet Configuration Practice Guide

2.4 Configuration Procedure Configuration at NE A 

Step 1 Configure Ethernet Port Parameters:

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1、 Login to U2000 Main Topology.

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2、 Right click on NE A to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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OHCNATS11 Ethernet Configuration Practice Guide

4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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5、select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board,

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all the ports are disabled by default. Port 2 needs to be enabled

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manually by double-click on the “Enabled/Disabled” tab for Port 2 and select “Enabled” as shown below.

c r u o s e R

After selecting, click the “Apply” button at the right bottom of the panel.

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rn

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7、Select “Internal Port”. Change TAG Attributes of VCTRUNK1 and VCTRUNK2 to “Access” with VLAN ID of 100 and 200 respectively.

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OHCNATS11 Ethernet Configuration Practice Guide



Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、As shown on the diagram below, there is an existing EPL service which is created in Chapter 1. As for now, click “New” to create a new EVPL service between NE A and NE B.

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OHCNATS11 Ethernet Configuration Practice Guide

3、In the Create Ethernet Service configuration panel, select “PORT2” as Source Port , “VCTRUNK2” as Sink Port and type in 100 for the Source VLAN and Sink VLAN as shown below.

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4、At this moment, the “Bound Path” panel is empty. To configure a bound path to VCTRUNK2, click “Configure” button. At the “Bound Path” panel, select VCTRUNK2 and click “>>” button. Click the “OK” button at the bottom right of the panel and return to the Create Ethernet Line configuration panel.

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OHCNATS11 Ethernet Configuration Practice Guide

5、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7、Finally the Ethernet Line service has been successfully created and the Ethernet service will be displayed in the Ethernet Line panel.

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OHCNATS11 Ethernet Configuration Practice Guide

8、After configuring the EVPL service between NE A and NE B, now we have to configure EVPL service between NE A and NE D with VLAN ID 200 by clicking “New” and select the options as shown below.

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9、Click “Configure” , select VCTRUNK3 and bound VC12-5 by clicking “>>” button. Click “OK” when done.

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OHCNATS11 Ethernet Configuration Practice Guide

10、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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11、The Ethernet Line service has been successfully created and you will see 3 EPL Ethernet service in the Ethernet Line panel.

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OHCNATS11 Ethernet Configuration Practice Guide 

Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service

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Configuration”.

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3、There is an existing SDH service from the configuration in Chapter 1, Click on the “Create” button to create another new SDH service.

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OHCNATS11 Ethernet Configuration Practice Guide

4、At the Create SDH service panel, select the correct information from the options for NE A. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). After obtaining display as shown below, (The “Source Slot” and the

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“Sink Slot” position have to be the same as the actual board slot number), click “OK”.

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5、Then, configure SDH service for Ne D as shown below and click “OK”.

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6、The SDH service created will be displayed as shown below.

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Configuration at NE B 

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Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

ng

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2、Right click on NE B to select “NE Explorer”.

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OHCNATS11 Ethernet Configuration Practice Guide

3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface.

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5、select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board,

all the ports are disabled by default. Port 1 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and select “Enabled” as shown below. After selecting, click the “Apply” button at the right bottom of the panel.

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OHCNATS11 Ethernet Configuration Practice Guide

7 、 Next, click on the “TAG Attributes” tab. At the “TAG” column, double-click and select “Access” for Port 1 follow by changing the “Default VLAN ID” to 100. After done selecting, remember to click on the “Apply” button at the bottom right of the panel to activate the changes.

8、Select “Internal Ports” and change the Entry Detection of VCTRUNK 2 to “Disabled”.



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Step 2 Configure Ethernet Line Service:

1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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OHCNATS11 Ethernet Configuration Practice Guide

2、Click “New”, select “PORT 1” as the Source Port and “VCTRUNK2” as the sink port. Fill in “100” for both Source VLAN and Sink VLAN.

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3、Click “Configure” and click on “>>” button to bound VC12-1 into VCTRUNK1 and click “OK”.

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4、 After verifying the “Bound Path” at the Create Ethernet Service configuration, click “OK”.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

c r u o s e R 

ni

ng

r a e

: s e

h

Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE B” at the NE explorer.

L

2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”. 38 Confidential Information of Huawei. No Spreading without Permission

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OHCNATS11 Ethernet Configuration Practice Guide

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3、 To create a new SDH service, click on the “Create” button.

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4、At the Create SDH service panel, select the correct information from the options for NE B. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). After obtaining display as shown below, (The “Source Slot” and the

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“Sink Slot” position have to be the same as the actual board slot number), click “OK”.

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5、The SDH service has been successfully created and the SDH service is shown as below in the panel.

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OHCNATS11 Ethernet Configuration Practice Guide

Configuration at NE D 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE D to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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OHCNATS11 Ethernet Configuration Practice Guide

4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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5、select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board, all the ports are disabled by default. Port 1 need to be enabled manually

h

by double-click on the “Enabled/Disabled” tab for Port 1 and select

: s e

“Enabled” as shown below.

c r u o s e R

After selecting, click the “Apply” button at the right bottom of the panel.

n r a

g n i

7、Next, click on the “TAG Attributes” tab. At the Entry Detection column, change the Entry Detection of Port 1 to “Disabled”.

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OHCNATS11 Ethernet Configuration Practice Guide

8、Select “Internal Ports” and change VCTRUNK3 Entry Detection to “Disabled”.

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

Step 2 Configure Ethernet Line Service:

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1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、Click “New”, select “PORT 1” as the Source Port and “VCTRUNK3” as the sink port. Fill in “200” for both Source VLAN and Sink VLAN.

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3、Click the “Configure” button and select VCTRUNK3. Click on “>>” button to bound VC12-1 into VCTRUNK3 and click “OK”.

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4、After verifying the “Bound Path” at the Create Ethernet Service configuration, click “OK”.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box. 44 Confidential Information of Huawei. No Spreading without Permission

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OHCNATS11 Ethernet Configuration Practice Guide

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

Step 3 Configure SDH service:

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1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE D” at the NE explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service

: s e

Configuration”.

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3、To create a new SDH service, click on the “Create” button.

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4、At the Create SDH service panel, select the correct information from the options for NE D. (In this case, VC4-4 is selected for N2EFS4 board

e l //

because only VC4-4 can support for VC-12 level virtual concatenation). After obtaining display as shown below, (The “Source Slot” and the “Sink Slot” position have to be the same as the actual board slot

: p tt

number), click “OK”.

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OHCNATS11 Ethernet Configuration Practice Guide

5、The SDH service has been successfully created and the SDH service is shown as below in the panel.

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2.5 Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. First, you must make sure the Tag Attributes of the external port of NE A is configured as “Access” (PCs cannot ping each other when the ports are in Tag Aware mode as PCs do not have VLAN IDs. 

Test Ethernet Service between NE A and NE B:

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Two PCs are needed to test the connectivity, connect two PCs to port 2 of Ethernet board in NE A and port 1 of Ethernet board in NE B each.

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PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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OHCNATS11 Ethernet Configuration Practice Guide



Test Ethernet Service between NE A and NE D:

Two PCs are needed to test the connectivity, connect two PCs to port 2 of Ethernet board in NE A and port 1 of Ethernet board in NE D each. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Chapter 3 EVPL Service Configuration using Station by Station Method (VCTRUNK Shared) 3.1 Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500. The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12.

u h . g n

i e aw

One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

NE A

#5

NE B

#5

NE C

#5

c r u o s e R NE E

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Ethernet board slot number

NE D

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Network Elements

: s e

#5

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#5

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3.2 Service Requirements Branch H1 of company H and branch G1 of Company G are both located at NE A. While branch H2 of company H and branch G2 of company G are both located at NE B. Both companies needed an Ethernet service of bandwidth of 6Mbits/s to communicate with each other. The services of company H need to be isolated from the services of company G. Traffic of company H and G, however, is complementary in terms of bandwidth.

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3.3 Parameters Description

The network planning is shown below:

: p tt

1. EVPL service for Company H between branch H1 and branch H2; 2. EVPL service for Company G between branch G1 and branch G2; 

Le

n r a

g n i

: s e

Use VC-12 timeslot 1 to 3 of VC-4 number 1 for SDH link between 。 NE A and NE B （VC4-1:VC12:1-3）

c r u o s e R −



h

EVPL service for Company H between branch H1 and branch H2: −

Use VC-12 timeslot number 1 to 3 of VC-4 number4 （VC4-4:VC12:1-3）of N2 EFS4 board for both NE A and NE B.

Parameters of external Ethernet ports on the Ethernet boards:

Parameters

NE A

NE B

Board

N2EFS4

N2EFS4

Port

PORT1

PORT1

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Enabled

TAG

Access

Access

Default VLAN ID

100

100

Port Type

PE

PE

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Parameters of internal ports on the Ethernet boards: Parameters

NE A

NE B

Boards

N2EFS4

N2EFS4

Internal Port

VCTRUNK1

VCTRUNK1

Bound Path

VC4-4:VC12-1~3

VC4-4:VC12-1~3

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Tag Aware

PE

PE

Default VLAN ID Port Type



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EPL Service Parameters (NE A and NE B station parameters): Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT1

: s e

Source Port C-VLAN(e.g.1,3-6)

c r u o s e R Sink Port

Sink C-VLAN

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100

VCRTUNK1 100

(e.g. 1,3-6)

L

ea

rn

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

EVPL service for Company G between branch G1 and branch G2: −

Use VC-12 timeslot number 4-6 of VC4 number 1 for SDH link between NE A and NE B（VC4-1:VC12:4-6）.

−

Use VC-12 timeslot number 4 to 6 of VC-4 number 4 （VC4-4:VC12:4-6）of N2 EFS4 board for both NE A and NE B.

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OHCNATS11 Ethernet Configuration Practice Guide 

Parameters of external Ethernet ports on the Ethernet boards: Parameters



NE A

Board

N2EFS4

N2EFS4

Port

PORT2

PORT2

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Enabled

TAG

Access

Access

Default VLAN ID

200

200

Port Type

PE

PE

Internal Port

VCTRUNK1

Bound Path

VC4-4:VC12-1~3

VC4-4:VC12-1~3

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Tag Aware

PE

PE

: s e

c r u o s e R

: p tt

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N2EFS4 VCTRUNK1

EPL Service Parameters (NE A and NE B station parameters): Parameters

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NE B

N2EFS4

Port Type

rn

o c .

Board

Default VLAN ID

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NE A

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Parameters of internal ports on the Ethernet boards: Parameters



NE B

EPL service of company G

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT2

Source Port C-VLAN(e.g.1,3-6)

200

Sink Port

VCTRUNK1

Sink C-VLAN

200

(e.g. 1,3-6)

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3.4 Configuration Procedure Configuration at NE A 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、” Right click on NE A to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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6、The diagram below shows the 4 external port of the Ethernet board,

o c .

all the ports are disabled by default. Port 1 and Port 2 needs to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and 2 and select “Enabled” as shown below.

i e aw

After selecting, click the “Apply” button at the right bottom of the panel.

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7、 Click on the “TAG Attributes” tab, change the TAG to “Access” for Port 1 and Port 2 follow by changing the “Default VLAN ID” to 100 for Port 1 and “VLAN ID” to 200 for Port 2. Click “Apply” button to activate changes.

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Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、On the panel, select “New” button to create new EVPL service between NE A and NE B for company H. In the Create Ethernet Service configuration panel, select “PORT 1” as Source Port, “VCTRUNK1” as Sink Port and type in 100 for the Source VLAN and Sink VLAN as shown below.

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3、At this moment, the “Bound Path” panel is empty. To configure a bound path to VCTRUNK1, click “Configure” button follow by “>>” button for 3 times to bound VC12-1 to 3. Click the “OK” button at the bottom right of the panel and return to the Create Ethernet Line configuration panel.

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4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7、Now, configure EVPL service for company G. Click “New” button and select “PORT2” as Source Port , “VCTRUNK1” as Sink Port and type in 200 for the Source VLAN and Sink VLAN as shown below.

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8、Finally the Ethernet Line service has been successfully created and the Ethernet service for both company H and G will be displayed in the Ethernet Line panel.

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Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3 、 At the SDH Service Configuration panel, click “New” to create

cross-connection service for company H and G.

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4、At the Create SDH service panel, select the correct information from the options for NE A as shown below. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). Click “OK” . (The “Source Slot” and the “Sink Slot”

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position have to be the same as the actual board slot number).

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5、The SDH service created will be displayed as shown below.

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Configuration at NE B 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE B to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface.

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5、select “External Port”.

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6、The diagram below shows the 4 external port of the Ethernet board,

: p tt

all the ports are disabled by default. Port 1 and Port 2 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port

h

1 and Port 2 and select “Enabled” as shown below.

: s e

After selecting, click the “Apply” button at the right bottom of the panel.

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OHCNATS11 Ethernet Configuration Practice Guide

7、Click on the “TAG Attributes” tab, change the TAG to “Access” for Port 1 and Port 2 follow by changing the “Default VLAN ID” to 100 for Port 1 and “VLAN ID” to 200 for Port 2. Click “Apply” button to activate changes.

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

Step 2 Configure Ethernet Line Service:

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1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、To create a new Ethernet Line service for company H, click “New” and select PORT 1 as Source Port and VCTRUNK1 as Sink Port. Type “100” as the Source and Sink VLAN ID.

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3、Click the “Configure” button to bound VC12:1-3 into VCTRUNK1 by clicking the “>>” button 3 times. Click “OK” when done.

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4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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OHCNATS11 Ethernet Configuration Practice Guide

6、Now create a new Ethernet Line service for company G. Click “New” again at the Create Ethernet Line service panel. (As both company H and G are sharing the same VCTRUNK1, therefore there is no need to bound path for company G again).

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7、Finally the Ethernet Line service has been successfully created and the Ethernet service will be displayed in the Ethernet Line panel .

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

Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE B” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、Click “Create” button to create a new SDH service.

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OHCNATS11 Ethernet Configuration Practice Guide

4、At the Create SDH service panel, select the correct information from the options as according to the diagram below. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation). Click “OK” when done.

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4、 The newly created SDH service will be shown on the panel as follow.

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3.5 Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. 67

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OHCNATS11 Ethernet Configuration Practice Guide

In order for us to test for the Ethernet service configuration for company H, two PCs are needed. Each PC is connected to port 1 of NE A and NE B. In the command prompt, use the “ping” command to test whether the services are configured successfully. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Next, test the Ethernet service configuration for company G by connecting two PCs to Port2 at NE A and NE B each. The method is same as of testing for company H.

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Chapter 4 EPLAN Service Configuration using Station by Station Method 4.1 Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500. The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12. The GNE and board slot number can be changed according to the actual situation during the configuration. One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

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Ethernet board slot number

NE A

#5

NE B

#5

NE C NE D

c r u o s e R NE E

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Network Elements

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#5 #5

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4.2 Service Requirement The headquarters of company H, H1 is located to NE A, while company H’s branches H2 and H3 are located to NE B and NE D respectively. Headquarters, H1 needs Ethernet service communication with branch H2 and H3 which requires a 6Mbits/s bandwidth for communication with each branch.

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4.3 Parameters Description

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The convergence node needs to exchange Ethernet services with two access nodes at Layer 2. The Ethernet services are transmitted transparently through the SDH network to interact with the remote node.

c r u o s e R 

Use VC12 timeslot number 1 to 3 of VC4 number 1 for SDH link between NE A and NE B（VC4-1:VC12:1-3）, and between NE A and NE D （VC4-1:VC12:1-3）.

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

For Ethernet LAN service between NE A and NE D, use VC-12 timeslot number 1 to 3 of VC4 number 4（VC4-4:VC12:1-3）of N2EFS4 board of NE A and NE D to add and drop service.



For Ethernet LAN service between NE A and NE B, use VC-12 timeslot number 4 to 6 of VC4 number 4 （VC4-4:VC12:4-6）of N2EFS4 board of NE A and use VC-12 timeslot number 1 to 3 of VC4 number 4 VC4-4:VC12:1-3）of N2EFS4 board of NE B to add and drop service.

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

Parameters of external Ethernet ports on the Ethernet boards: Parameters



NEA N2EFS4

N2EFS4

N2EFS4

Port

PORT1

PORT1

PORT1

Enabled/Disabled

Enabled

Enabled

Enabled

Working Mode

Auto-Negotiation

Auto-Negotiation

Auto-Negotiation

Maximum Frame Length

1522

1522

1522

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Port Type

PE

Le

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PE

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NEA

: p tt

Board

N2EFS4

PE

Port

VCTRUNK1

NEB

NED

N2EFS4

N2EFS4

VCTRUNK 2

VCTRUNK1

VCTRUNK1

Enabled

Enabled

Enabled

Enabled

TAG

Tag Aware

Tag Aware

Tag Aware

Tag Aware

Bound Path

VC4-4:VC1 2-1 ～ VC12-3

VC4-4:VC 12-4 ～ VC12-6

VC4-4:VC121～VC12-3

VC4-4:VC121～VC12-3

Port Type

PE

PE

PE

PE

c r u o s e R 

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: s e

h

EPLAN Service Parameters (NE A station parameters): Parameters

Ethernet LAN Service of NE A

Board

N2EFS4

VB Name

VB1

Bridge Type

IEEE 802.1d

Bridge Switch Mode

SVL/Ingress Filter Disabled

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Parameters of internal ports on the Ethernet boards:

Entry Detection

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NED

Board

Parameters

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OHCNATS11 Ethernet Configuration Practice Guide

Parameters Bridge Learning Mode

SVL

Ingress Filter

Disabled

VB Mount Port

PORT1、VCTRUNK1、VCTRUNK2

Hub/Spoke



Ethernet LAN Service of NE A

PORT1

Hub

VCTRUNK1

Hub

VCTRUNK2

Hub

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EPL Service Parameters (NE B station parameters): Parameters N2EFS4

Service Type

EPL

Direction

Bidirectional PORT1

Source C-VLAN

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Source Port

Sink Port

i e aw

EPL service of company H

Board

(e.g. 1,3-6)

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h

VCRTUNK1

Sink C-VLAN(e.g. 1,3-6)



EPL Service Parameters (NE D station parameters): Parameters

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ng

L

r a e

EPL service of company H

Board

N2EFS4

Service Type

EPL

Direction

Bidirectional

Source Port

PORT1

Source C-VLAN (e.g. 1,3-6) Sink Port

VCRTUNK1

Sink C-VLAN(e.g. 1,3-6)

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4.4 Configuration Procedure Configuration at NE A 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE A to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

ng

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5、 From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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6、The diagram below shows the 4 external port of the Ethernet board,

o c .

all the ports are disabled by default. Port 1 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and select “Enabled” as shown below.

i e aw

After selecting, click the “Apply” button at the right bottom of the panel.

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

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Step 2 Configure Ethernet LAN Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet LAN Service”.

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2、At the Ethernet LAN service panel, click “New”, (When the bridge adopts the SVL learning mode, all the VLANs share the same MAC address table. That is, the bridge learns and forwards the packets according to the MAC address of the user packets only. The information in the VLAN tags of the user packets, however, is not considered in the learning and forwarding process.) Take note that the VB name must be set, the VB name “AB_LAN” was set as shown below. Select the correct parameters and click “Configure Mount”.

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3、AT the panel, click “Configure Mount” button and select PORT1, VCTRUNK1 and VCTRUNK by clicking the “>>” button. Click “OK” when finish.

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4、After mounting the VB, return to Create Ethernet LAN service and click “Configuration” button to bound path into VCTRUNK1 and VCTRUNK2. You can select between VCTRUNK1 and VCTRUNK2 at the Configuration Ports section.

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5、At the Create Ethernet LAN service panel, click “OK”.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7、The successful service configured will be shown on the panel as shown below.

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Step 3 Configure SDH service:

: s e

1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、First, create a SDH service to NE B. Click the “New” button at the Create SDH service panel and choose the correct options as shown in

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the figure below. Click “OK” to confirm.

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4、Next, create a SDH service to NE D.. Fill in the correct options and click “OK” to confirm.

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5、The SDH service created will be displayed as shown below.

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Configuration at NE B 

Step 1 Configure Ethernet Port Parameters: 1、 Login to U2000 Main Topology.

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2、Right click on NE B to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface..

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5、select “External Port”.

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6、Double click on the “Enabled/Disabled” tab for Port 1 and select “Enabled” as shown below.

h

After selecting, click the “Apply” button at the right bottom of the panel.

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7、Next, at the “TAG Attributes” tab, change the Entry Detection for Port 1 to “Disabled”.

a e L

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8、Finally, click on “Internal Port” and change the Entry Detection for VCTRUNK1 to “Disabled”.

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OHCNATS11 Ethernet Configuration Practice Guide 

Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、Click “New”, select “PORT1” as the Source Port and “VCTRUNK1” as the sink port. Here Source and Sink VLAN ID is not needed.

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3 、 To bound paths into VCTRUNK, click “New” button, select “VCTRUNK1” and click the “>>” button to bound three VC12 path. Make sure the configuration is correct and click “OK” button on the bottom right of the panel.

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After verifying the “Bound Path” at the Create Ethernet Service configuration, click “OK”.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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

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Step 3 Configure SDH service:

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1、To configure a SDH service is to create a cross-connection between

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the Ethernet board and Line board. Select “NE B” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service

: s e

Configuration”.

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3、To create a new SDH service, click on the “Create” button.

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4、At the Create SDH service panel, select the correct parameters as

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shown below.(Remember to select the correct Source and Sink Board according to the actual situation). Click “OK” to finish.

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5、The SDH service has been successfully created and the SDH service is shown as below in the panel.

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Configuration at NE D 

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Step 1 Configure Ethernet Port Parameters:

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1、Login to U2000 Main Topology.

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2、Right click on NE D to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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5、Select “External Port”.

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6、Double click on the “Enabled/Disabled” tab for Port 1 and select

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“Enabled” as shown below. After selecting, click the “Apply” button at the right bottom of the panel.

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7、Next, at the “TAG Attributes” tab, change the Port 1 Entry Detection to “Disabled”.

8、Click on “Internal Port”, change the Entry Detection of VCTRUNK1 to “Disabled”.



Step 2 Configure Ethernet Line Service:

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1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、Click “New”, select “PORT1” as the Source Port and “VCTRUNK1” as the sink port. Leave the Source and Sink VLAN ID blank.

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3 、 To bound paths into VCTRUNK, click “New” button, select “VCTRUNK1” and click the “>>” button to bound three VC12 path. Make sure the configuration is correct and click “OK” button on the bottom right of the panel.

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4、After verifying the “Bound Path” at the Create Ethernet Service configuration, click “OK”.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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Step 3 Configure SDH service:

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1、To configure a SDH service is to create a cross-connection between

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the Ethernet board and Line board. Select “NE D” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、To create a new SDH service, click on the “Create” button.

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4、At the Create SDH service panel, select the correct parameters from

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the options for NE D. (In this case, VC4-4 is selected for N2EFS4 board because only VC4-4 can support for VC-12 level virtual concatenation).

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After obtaining display as shown below, (The “source board” and the “sink board” position have to be the same as the actual board slot

: p tt

number), click “OK”.

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6、 The SDH service has been successfully created and the SDH service is shown as below in the panel.

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4.5Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. 

Two PCs are needed to test the connectivity, connect two PCs to port 1 of Ethernet board in NE A and port 1 of Ethernet board in NE B each.

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PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Test Ethernet Service between NE A and NE B:

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

Test Ethernet Service between NE A and NE D:

Again, two PCs are needed to test the connectivity, connect two PCs to port 2 of Ethernet board in NE A and port 1 of Ethernet board in NE D each. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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

Test Ethernet Service between NE B and NE D:

Again, two PCs are needed to test the connectivity, connect two PCs to port 1 of Ethernet board in NE B and port 1 of Ethernet board in NE D each. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Chapter 5 EVPLAN Service Configuration using Station by Station Method

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5.1Laboratory Network Topology Introduction

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The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500. The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12. The GNE and board slot number can be changed according to the actual situation during the configuration. One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

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NE A

#5

NE B

#5

c r u o s e R NE D NE E

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Ethernet board slot number

NE C

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Network Elements

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5.2Service Requirement Headquarters of company H, H1 is located at NE A while branches of company H, H2 and H3 are located at NE B and NE D respectively. This is the same for company G, headquarters G1 is located at NE A and its branches G2 and G3 are located at NE B and NE D respectively. The headquarters need to have Ethernet service communication with their respective branches; furthermore the branches need to have Ethernet service communication between branches within the same company. Each of the company needed a bandwidth of 6Mbits/s.

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c r 5.3Parameters Description u o s e R g n i n r a e

The Ethernet services of the convergence node are received from an external port and tagged with the corresponding VLAN IDs. After the services are forwarded to an internal port through Layer 2 switching, the VLAN IDs are stripped and then the services are transparently transmitted in the SDH network. In this way, the node communicates with a remote node. 

L

The Ethernet LAN services of company G: −

The Ethernet LAN services of company G occupy the first to third VC-12 timeslots of the first VC-4 (VC4-1:VC12:1-3) on the SDH link from NE A to NE B and first to third VC-12 timeslots of the first VC-4 (VC4-1:VC12:1-3) on the SDH link from NE A to NE D.

−

The Ethernet LAN service between NE A and NE B is added and dropped by using the first to third VC-12 timeslots of the first VC-4 (VC4-1:VC12:1-3) on the N1EFS4 board of NE A and the first to third VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-3) on the N1EFS4 board of NEB. 98

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

The Ethernet LAN service between NE A and NE D is added and dropped by using the fourth to sixth VC-12 timeslots of the first VC-4 (VC4-1:VC12:4-6) on the N1EFS4 board of NE A and the first to third VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:1-3) on the N1EFS4 board of NE D.

−

−

−

The Ethernet LAN services of company H occupy the fourth to sixth VC-12 timeslots of the first VC-4 (VC4-1:VC12:4-6) on the SDH link from NE A to NE B and the third to sixth VC-12 timeslots of the first VC-4 (VC4-1:VC12:4-6) on the SDH link from NE A to NE D.

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The Ethernet LAN service between NE A and NE D is added and dropped by using the tenth to twelfth VC-12 timeslots of the first VC-4 (VC4-1:VC12:10-12) on the N1EMS4 board of NE A and the fourth to sixth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:4-6) on the N1EFS4 board of NED.

Parameters of external Ethernet ports on the Ethernet boards: Parameters Board

c r u o s e R Port

ng

ni

L

r a e



: p tt

: s e

h

NEA

N2EFS4

NEB N2EFS4

NED N2EFS4

PORT 2

PORT 1

PORT1

PORT2

PORT 1

Enabled/Disabled

Enabled

Enabled

Enabled

Enabled

Entry Detection

Enabled

Enabled

Disabled

Disabled

TAG

Access

Access

Tag Aware

Tag Aware

Default VLAN

100

200

Port Type

PE

PE

PE

PE

PORT 2

Parameters of internal ports on the Ethernet boards (Service for company G): Parameters

NEA

Board

N2EFS4

Port

VCTRUNK1

VCTRUNK2

NEB

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The Ethernet LAN service between NE A and NE B is added and dropped by using the seventh to ninth VC-12 timeslots of the first VC-4 (VC4-1:VC12:7-9) on the N1EFS4 board of NEA and the fourth to sixth VC-12 timeslots of the fourth VC-4 (VC4-4:VC12:4-6) on the N1EFS4 board of NE B.

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

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The Ethernet LAN services of company H:

NED

N2EFS4

N2EFS4

VCTRUNK1

VCTRUNK1

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Parameters

Enabled

Disabled

Disabled

TAG

Access

Access

Tag Aware

Tag Aware

Default VLAN

100

100

Bound Path

VC4-4:VC1 2-1 ～ VC12-3

VC4-4:VC1 2-4 ～ VC12-6

VC4-4:VC121～VC12-3

VC4-4:VC121～VC12-3

PE

PE

PE

PE

N2EFS4

N2EFS4

NEB

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NED

N2EFS4

Port

VCTRUNK3

VCTRUNK4

VCTRUNK2

VCTRUNK2

Entry Detection

Enabled

Enabled

Disabled

Disabled

TAG

Access

Access

Tag Aware

Tag Aware

c r u o s e R Port Type

Le

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NEA

Board

Bound Path

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200

200

VC4-4:VC1 2-7 ～ VC12-9

VC4-4:VC1 2-10 ～ VC12-12

VC4-4:VC124～VC12-6

VC4-4:VC124～VC12-6

PE

PE

PE

PE

EVPLAN Service Parameters (NE A station parameters): Parameters

Ethernet LAN Service of NE A

Board

N2EFS4

VB Name

VB1

Bridge Type

IEEE 802.1q

Bridge Switch Mode

IVL/Ingress Filter Enable

Bridge Learning Mode

IVL

Ingress Filter

Enabled 100

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Parameters of internal ports on the Ethernet boards (Service for company H):

Default VLAN



NED

Enabled

Parameters

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Entry Detection

Port Type

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Parameters

Ethernet LAN Service of NE A

VB Mount Port

PORT1、PORT2、VCTRUNK1、VCTRUNK2、 VCTRUNK3、VCTRUNK4

VLAN Filtering

Hub/Spoke



VLAN Filtering

VLAN filter table 1

VLAN filter table 2

VLAN ID

100

200

Forwarding Physical Port

PORT1、VCTRUNK1、 PORT2、VCTRUNK3、 VCTRUNK2 VCTRUNK4

PORT1

Hub

PORT2

Hub

VCTRUNK1

Hub

VCTRUNK2

Hub

VCTRUNK3

Hub

VCTRUNK4

Hub

Board

c r u o s e R Service Type

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ar

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EPL Service Parameters (NE B station parameters):

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Parameters

ng

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EPL service of company G N2EFS4 EPL

Direction

Bidirectional

Source Port

PORT1

Source C-VLAN (e.g. 1,3-6) Sink Port

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VCRTUNK1

Sink C-VLAN(e.g. 1,3-6)

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EPL Service Parameters (NE C station parameters): Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Direction

Bidirectional

Source Port

PORT2

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Source C-VLAN (e.g. 1,3-6) Sink Port

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VCRTUNK2

Sink C-VLAN(e.g. 1,3-6) 

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EPL Service Parameters (NE D station parameters): Parameters

EPL service of company G

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Board

N2EFS4

Service Type

EPL

: p tt

Direction

Bidirectional

Source Port

: s e

Source C-VLAN (e.g. 1,3-6)

c r u o s e R Sink Port

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h

PORT1

VCRTUNK1

Sink C-VLAN(e.g. 1,3-6)

Le

ar

ni

ng

Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Direction

Bidirectional

Source Port

PORT2

Source C-VLAN (e.g. 1,3-6) Sink Port

VCRTUNK2

Sink C-VLAN(e.g. 1,3-6)

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5.4 Configuration Procedure Configuration at NE A 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE A to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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4、From the Function Tree select “Configuration> Ethernet Interface Management> Ethernet Interface”.

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5、Select “External Port”.

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6、Port 1 and Port 2 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and 2, select “Enabled” as shown below.

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After selecting, click the “Apply” button at the right bottom of the panel.

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7、 Click on the “TAG Attributes” tab, change the TAG to “Access” for Port 1 follow by changing the “Default VLAN ID” to 100 and change the TAG to “Access” for Port 2 follow by changing the “Default VLAN ID” to 200. Click “Apply” button to activate changes.

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8、Select “Internal Port”, at the TAG Attributes tab, change the TAG to “Access” for VCTRUNK 1, 2, 3 and 4 follow by assigning VLAN ID of 100, 100, 200 and 200 by sequence. Click “OK”.

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

Step 2 Configure Ethernet LAN Service:

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1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet LAN Service”.

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2、 At the Ethernet LAN service panel, click “New”, (When the bridge

adopts the SVL learning mode, all the VLANs share the same MAC address table. That is, the bridge learns and forwards the packets according to the MAC address of the user packets only. The information in the VLAN tags of the user packets, however, is not considered in the learning and forwarding process.) Take note that the VB name must be set, the VB name “AB_LAN” was set as shown below. Select the correct parameters and click “Configure Mount”.

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3、At the Service Mount Configuration panel, select Port 1, Port 2, VCTRUNK1,VCTRUNK2, VCTRUNK3, VCTRUNK4 as the mounted path by clicking the “>>” button. Click “OK” when done.

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4、Next, Click the “Configuration” button to bound the necessary path to VCTRUNK1, VCTRUNK2, VCTRUNK3, and VCTRUNK4. Select the configuration path and click “>>” to bound the correct number of VC12 into them. Click “OK” when done.

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5、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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6、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7、The configured service will be shown on the panel together with the detail of the service as shown below.

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8、Select the “VLAN Filtering” tab and click “New”.

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9、At the Create VLAN panel, select Forwarding Ports for company G with the same VLAN group (100). Select PORT1, VCTRUNK1, VCTRUNK2 by clicking “>>” button. Insert VLAN ID of “100”. Click “Apply” when done.

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10 、At the same Create VLAN panel, select Forwarding Ports for company H with the same VLAN group (200). Select PORT1, VCTRUNK3, VCTRUNK4 by clicking “>>” button. Insert VLAN ID of “200”. Click “Apply” when done.

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

Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE A” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”

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3、At the SDH Service Configuration panel, click “Apply” button to create cross-connection service for company G at NE D.

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4、Next, modify the parameters to create cross-connection service for company G at NE B and click “Apply”.

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5、Next, modify the parameters to create cross-connection service for

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company H at NE D and click “Apply”.

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5、Next, modify the parameters to create cross-connection service for company H at NE B and click “OK”.

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5、The SDH service created will be displayed as shown below.

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Configuration at NE B 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE B to select “NE Explorer”.

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3、Select N2EFS4 board from the Board List.

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6、Port 1 and Port 2 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and Port 2 and select “Enabled” as

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shown below.

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After selecting, click the “Apply” button at the right bottom of the panel.

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7、Click on the “TAG Attributes” tab, modify the Entry Detection to “Disabled” for Port 1 and Port 2. Click “Apply” button to activate changes.

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8、Select “Internal Port”. On the TAG Attributes tab, change the Entry Detection of VCTRUNK1 and 2 to Disabled.

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Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、To create a new Ethernet Line service for company G, select Port 1 as Source Port and VCTRUNK1 as Sink Port as shown below.

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3、As shown in the diagram below, the bound path is empty; we need to bind VC12 into VCTRUNK1. Select “VCTRUNK1” and click “>>” three times to bound 3 VC-12 into VCTRUNK1. Click “OK” when done.

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4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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6、Next, configure the Ethernet Line service for company H. Select

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PORT2 as Source Port and VCTRUNK2 as Sink Port as shown below.

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7 、 Now, we need to bind VC12:4-6 into VCTRUNK2. Select “VCTRUNK2” and click “>>” three times to bound 3 VC-12 into VCTRUNK2. Click “OK” when done.

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8、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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9、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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1、To configure a SDH service is to create a cross-connection between

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the Ethernet board and Line board. Select “NE B” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service

: s e

Configuration”.

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3、Click “Create” button to create a new SDH service.

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4、Create SDH service for company G, Select the correct parameters in the Create SDH service panel and type in the correct timeslot which is 1

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to 3 for company G as shown below. Click “Apply” when done.

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5、Next, modify the parameters to create cross-connection service for company H with Source and Sink timeslot of 4 to 6 and click “OK”.

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6、The SDH service created will be displayed as shown below.

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Configuration at NE D 

Step 1 Configure Ethernet Port Parameters: 1、Login to U2000 Main Topology.

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2、Right click on NE D to select “NE Explorer”.

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3、Select N2EFS4 board from the board list.

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6、Port 1 and Port 2 need to be enabled manually by double-click on the “Enabled/Disabled” tab for Port 1 and Port 2 and select “Enabled” as

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shown below.

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After selecting, click the “Apply” button at the right bottom of the panel.

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7、Click on the “TAG Attributes” tab, modify the Entry Detection to “Disabled” for Port 1 and Port 2. Click “Apply” button to activate changes.

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8、Select “Internal Port”. On the TAG Attributes tab, change the Entry Detection of VCTRUNK1 and 2 to Disabled.

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Step 2 Configure Ethernet Line Service: 1 、 At the Function Tree, select ”Configuration> Ethernet Service> Ethernet Line Service”.

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2、To create a new Ethernet Line service for company G, select PORT1 as Source Port and VCTRUNK1 as Sink Port as shown below.

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3、As shown in the diagram below, the bound path is empty; we need to bind VC12 into VCTRUNK1. Click “Configure”, select “VCTRUNK1” and click “>>” three times to bound 3 VC-12 into VCTRUNK1. Click “OK” when done.

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4、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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5、Next, configure the Ethernet Line service for company H. Select PORT2 as Source Port and VCTRUNK2 as Sink Port as shown below.

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6、Now, we need to bind VC12:4-6 into VCTRUNK2. Click “Configure”, select “VCTRUNK2” and click “>>” three times to bound 3 VC-12 into VCTRUNK2. Click “OK” when done.

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7、Make sure the Ethernet Line configuration is configured correctly and click the “OK” button.

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8、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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

Step 3 Configure SDH service: 1、To configure a SDH service is to create a cross-connection between the Ethernet board and Line board. Select “NE D” at the NE Explorer.

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2 、 At the “Function Tree”, select “Configuration> SDH Service Configuration”.

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3、Click “Create” button to create a new SDH service.

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4、Create SDH service for company G, Select the correct parameters in the Create SDH service panel and type in the correct timeslot which is 1 to 3 for company G as shown below. Click “Apply” when done.

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5、 Next, modify the parameters to create cross-connection service for company H with Source and Sink timeslot of 4 to 6 and click “OK”.

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6、The SDH service created will be displayed as shown below.

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5.5 Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. 

Test Ethernet Service for company G between NE A and NE B:

Two PCs are needed to test the connectivity, connect two PCs to port 1 of Ethernet board in NE A and port 1 of Ethernet board in NE B each.

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PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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

Test Ethernet Service for company G between NE A and NE D:

Two PCs are needed to test the connectivity, connect two PCs to port 1 of Ethernet board in NE A and port 1 of Ethernet board in NE D each. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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

Test Ethernet Service for company G between NE B and NE D:

Again, two PCs are needed to test the connectivity, connect two PCs to port 1 of Ethernet board in NE B and port 1 of Ethernet board in NE D each. PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Testing for company H will be similar to company G as shown above.

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Chapter 6 EPL Configuration by Trail Method 6.1Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500. The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12. The GNE and board slot number can be changed according to the actual situation during the configuration. One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation.

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Network Elements

Ethernet board slot number

NE A

#5

NE B

#5

NE C

#5

NE D

#5

NE E

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6.2Service Requirement Service requirement description：Company H has two branches located at NE A and NE C needed an Ethernet service communication with 6Mbits/s bandwidth.

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6.3Parameters Description 



EPL service of company H：

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−

SDH service link time slot number 1 to 3 of VC-12 in VC-4 #1 ，is used for NE A and NE C, while service in NE B （VC4-1:VC12:1-3） is configures as pass-through.

−

Time slot 1 to 3 of VC-12 in VC-4 #4 of N2EFS4 board in slot number 4 （VC4-4:VC12:1-3） of NE A and NE C is used.

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Parameters of external ports on the Ethernet board:

c r u o s e R Parameter

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NE A

NE C

Board

N2EFS4

N2EFS4

Port

PORT1

PORT1

Enabled/Disabled

Enable

Enable

Entry Detection

Enable

Enable

TAG

Access

Access

Default VLAN ID

100

100

Port Type

PE

PE

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

Parameters of internal ports on the Ethernet boards: Parameter



NE A

NE C

Board

N2EFS4

N2EFS4

Internal Port

VCTRUNK1

VCTRUNK1

Bound Path

VC4-4:VC12-1～VC12-3

VC4-4:VC12-1～VC12-3

Entry Detection

Enable

Enable

TAG

Tag Aware

Tag Aware

Port Type

PE

PE

EPL service of Company H

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Board

N2EFS4

Service Type

EPL

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Service Direction Source Port

: s e

Source C-VLAN (e.g. 1,3-6)

c r u o s e R Sink Port

Bidirectional

h

Sink C-VLAN (e.g. 1,3-6)

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Parameters of the EPL service（Same parameters on A and C）: Parameters

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PORT1 Null

VCRTUNK1 Null

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6.4Configuration Procedure Configure SDH Trail 1、Login to U2000 Main Topology.

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2、Select “Service tab> SDH Trail> Create SDH Trail”.

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3、At the Create SDH Trail panel, select Level as “VC4 Server Trail”.

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4、Double click on the Source and Sink NE. The detailed information will be shown as below. Click “OK” when finish.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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6、Next, continue to configure a service trail between NE B and NE C, click

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“OK” when finish.

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7、Now, configure service trail between NE C and NE D, click “OK” when finish.

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8、Now, create service trail between NE D and NE A, click “OK” when finish.

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9、After configuring all the VC4 service, click “Cancel” to quit the Create SDH Service Trail.

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Configure Ethernet Service Trail 1、Select the “Service” tab, select “MSTP Trail> Create EPL”

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2、At the Create EPL panel, select “Port” as Port Usage Strategy and double click on NE A.

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3、At the NE A board slot panel, select the slot 5-N2EFS4 board, and then select Port 1. Click “OK” to return to the Create Ethernet Service panel and double click on NE B to select as Sink NE.

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4、At NE B NE panel, select N2EFS4 board at slot number 5 and select Port 1. Click “OK” when done.

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5 、 At the Trunk Link Strategy option, select “Create Trunk Link Automatically”.

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6、Select “3” for bandwidth and “VC-12 for X”. Click “Next” when done.

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7、At the Port Attribute Setting, change TAG of Port 1 and Port 2 to “Access” and change the Default VLAN to “100”.

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8、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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6.5 Test Service Configuration When all the configuration has been completed, the configurations have to be tested to make sure it works. In order for us to test, two PCs are needed. Each PC is connected to port 1 of NE A and NE B. In the command prompt, use the “ping” command to test whether the services are configured successfully. PCs with IP addresses of 188.20.7.100 and 188.20.7.101were used for the “ping” test in this case. The results below show the EPL service is working normally.

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Chapter 7 EVPL Configuration by Trail Method (VCTRUNK Shared)

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7.1 Laboratory Network Topology Introduction The network topology diagram is as follows, the network elements (NEs) consist of 5 OptiX OSN 3500.

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The basic topology is form from a four NEs two-fiber bidirectional multiplex section protection ring with a non-protection chain. Pair slot of slot #7 and #12 is used in each NE in the ring network; slot #7 is connected to slot #12 in the next NE. A non-protection chain is form from NE A slot #6 connected to NE E slot #12.

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One N2EFS4 board is configured in every NE and the actual slot number for each board is shown as follows. The slot number can be flexibly adjusted according to actual configuration situation

Ethernet board slot number

NE A

#5

NE B

#5

NE C

c r u o s e R NE D NE E

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7.2 Service Requirements Branch H1 of company H and branch G1 of Company G are both located at NE A. While branch H2 of company H and branch G2 of company G are both located to NE B. Both companies needed an Ethernet service of bandwidth of 6Mbits/s to communicate with each other. The services of company H need to be isolated from the services of company G. Traffic of company H and G, however, is complementary in terms of bandwidth.

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7.3 Parameters Description

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The network planning is shown below:

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1. EVPL service for Company H between branch H1 and branch H2; 2. EVPL service for Company G between branch G1 and branch G2; 

ng

Use VC-12 timeslot number 1to 3 of VC-4 number4 （VC4-4:VC12:1-3）of N2 EFS4 board for both NE A and NE B.

Parameters of external Ethernet ports on the Ethernet boards: Parameters

ni

r a e

: s e

Use VC-12 timeslot 1 to 3 of VC-4 number 1 for SDH link between 。 NE A and NE B （VC4-1:VC12:1-3）

c r u o s e R −



h

EVPL service for Company H between branch H1 and branch H2: −

L



NE A

NE B

Board

N2EFS4

N2EFS4

Port

PORT1

PORT1

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Tag Aware

Default VLAN ID

100

100

Port Type

PE

PE

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Parameters

NE A

NE B

Board

N2EFS4

N2EFS4

Internal Port

VCTRUNK1

VCTRUNK1

Bound Path

VC4-4:VC12-1~3

VC4-4:VC12-1~3

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Tag Aware

PE

PE

Default VLAN ID Port Type



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EPL Service Parameters (NE A and NE B station parameters): Parameters

EPL service of company H

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT1

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Source Port C-VLAN(e.g.1,3-6)

100

Sink Port

VCRTUNK1

Sink C-VLAN

100

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(e.g. 1,3-6)

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EVPL service for Company G between branch G1 and branch G2: −

Use VC-12 timeslot number 4-6 of VC4 number 1 for SDH link between NE A and NE B（VC4-1:VC12:4-6）.

−

Use VC-12 timeslot number 4 to 6 of VC-4 number 4 （VC4-4:VC12:4-6）of N2 EFS4 board for both NE A and NE B.

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Parameters of external Ethernet ports on the Ethernet boards: Parameters



NE A

Board

N2EFS4

N2EFS4

Port

PORT2

PORT2

Enabled/Disabled

Enabled

Enabled

Entry Detection

Enabled

Enabled

TAG

Access

Access

Default VLAN ID

200

200

Port Type

PE

PE

Internal Port

VCTRUNK1

Bound Path

VC4-4:VC12-1~3

VC4-4:VC12-1~3

Entry Detection

Enabled

Enabled

TAG

Tag Aware

Tag Aware

PE

PE

: s e

c r u o s e R

L

ea

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NE B

N2EFS4

Port Type

i n r

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Board

Default VLAN ID

ng

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NE A

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Parameters of internal ports on the Ethernet boards: Parameters



NE B

N2EFS4 VCTRUNK1

EPL Service Parameters (NE A and NE B station parameters): Parameters

EPL service of company G

Board

N2EFS4

Service Type

EPL

Service Direction

Bidirectional

Source Port

PORT2

Source Port C-VLAN(e.g.1,3-6)

200

Sink Port

VCTRUNK1

Sink C-VLAN

200

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7.4 Configuration Procedure Configure SDH Trail 1、Login to U2000 Main Topology.

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2、Select “Service> SDH Trail> Create SDH Trail”.

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3、Enter Create SDH Trail panel, select the level as “VC4 Server Trail”.

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4、Select the Source by double click on NE A follow by selecting Sink Node by double clicking NE B. Click “Apply” when done.

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5、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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6、Next, create service trail between NE B and NE C, click “OK” when finish.

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7、Now, create service trail between NE C and NE D, click “OK” when done.

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8、Create service trail between NE D and NE A, click “OK” when done.

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9、After all the VC4 server trail were successfully configured, click “”Cancel” to exit SDH service trail panel.

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Configure Ethernet Service Trail

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1、At the “Service” tab, select “MSTP Trail> Create EVPL”.

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2、First, configure Ethernet service for company H. Select “Port+VLAN” as Port Usage Strategy and double click on NE A.

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3、At the NE A NE panel, select the N2EFS4 board and select Port 1. Click “OK” when done. Now, double click on NE B to select the Sink Port.

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4、At NE B NE panel, select N2EFS4 board at slot number 5 and select Port 1. Click “OK” when done.

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5、At the Trunk Link Strategy option, select “Create Trunk Link Automatically” select “3” for bandwidth and “VC-12”. At the VLAN ID tab, enter “100” as the VLAN ID. Click “Next” when done.

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6、AT the Port Attributes Setting, change Port 1 and Port2 TAG to “TAG Aware”. Click “Finish”.

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7、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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8、At the Create EVPL panel, continue to create service for company G, double click on NE A to be selected as Source.

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9、At the NE A NE panel, select the N2EFS4 board at slot number 5 and select Port 2. Click “OK” when done. Now, double click on NE B to select the Sink Port.

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10、At the board slot panel of NE B, select N1EFS4 board at slot 5 and select Port 2, click “OK” when done.

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11、At the Trunk Link Strategy option, select “Use existing Trunk Link” select “3” for bandwidth and “VC-12”. At the VLAN ID tab, enter “200” as the VLAN ID. Click “Next” when done.

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12、At the Port Attributes Setting, change Port 1 and Port2 TAG to “TAG Aware”. Click “Finish”.

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13、System prompt will show that the configuration is successful. Confirm and close the system prompt dialog box.

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7.5 Test Service Configuration

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When all the configuration has been completed, the configurations have to be tested to make sure it works. As in the configuration, the Port’s TAG Attributes were set as “Tag Aware”; we need to change the Port as “Access” to enable communication between two PCs.

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Test service for company H

In order for us to test, two PCs are needed. Each PC is connected to port 1 of NE A and NE C. In the command prompt, use the “ping” command to test whether the services are configured successfully.

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PCs with IP addresses of 188.20.7.100 and 188.20.7.101 were used for the “ping” test in this case. Assign a VLAN ID of “100” to the Port. The results below show the EPL service is working normally.

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Test service for company G

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PCs with IP addresses of 129.9.0.149 and 129.9.0.147 were used for the “ping” test in this case. Assign a VLAN ID of “200” to the Port. The results below show the EPL service is working normally.

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m o c

With any Huawei Career Certification, you have the privilege on http://learning.huawei.com/en to enjoy: 

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. i e

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w a u

h . g

registration to [email protected] . 

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