Chapter 1 Overview .........................................................................................
1-1
1.1 General Introduction ............................................................................... 1.2 System Characteristics........................................................................... 1.2.1 Abundant Service Interfaces .......................................................... 1.2.2 Powerful Networking Capability ..................................................... 1.2.3 Integration of ATM-DSLAM and IP-DSLAM ................................... 1.2.4 Support of Multicasting Services .................................................... 1.2.5 Excellent Scalability ....................................................................... 1.2.6 Safe Access ................................................................................... 1.2.7 High QoS ....................................................................................... 1.2.8 Powerful Switching Capability ........................................................ 1.2.9 Multiple Maintenance Modes ......................................................... 1.2.10 Carrier-Class Reliability ...............................................................
1-1 1-2 1-2 1-2 1-3 1-3 1-3 1-3 1-3 1-4 1-4 1-4
Chapter 2 System Architecture ......................................................................
2-1
2.1 Hardware Architecture ............................................................................ 2.1.1 MA5100.......................................................................................... 2.1.2 MA5103.......................................................................................... 2.2 Description of Boards ............................................................................. 2.3 Software Modules ...................................................................................
2-1 2-1 2-3 2-4 2-7
Chapter 3 Functions and Service Flow ..........................................................
3-1
3.1 System Functions ................................................................................... 3.1.1 Main Control Module ...................................................................... 3.1.2 IP Service Process Module ............................................................ 3.1.3 ADSL Service Module .................................................................... 3.1.4 LAN Service Module ...................................................................... 3.1.5 ISU Module .................................................................................... 3.1.6 SHDSL Service Module ................................................................. 3.1.7 Remote Subtending Module .......................................................... 3.1.8 Master-slave Subtending Module .................................................. 3.1.9 Broadband Test Module ................................................................. 3.1.10 Environment Supervision & Control Module ................................ 3.2 Service Flow ........................................................................................... 3.2.1 xDSL Access Service Flow ............................................................ 3.2.2 LAN Leased Line Access Service Flow ......................................... 3.2.3 Multicasting Service Flow .............................................................. 3.2.4 ISU Service Flow ........................................................................... 3.2.5 Broadband Test Service Flow ........................................................
3-1 3-2 3-4 3-5 3-7 3-7 3-8 3-9 3-11 3-12 3-13 3-13 3-13 3-14 3-15 3-17 3-17
Chapter 4 Maintenance Management System ...............................................
4-1
4.1 Command Line Mode ............................................................................. 4.2 NMS Workstation Mode ......................................................................... 4.2.1 Hardware and Software Configuration of iManager N2000 ........... 4.2.2 Characteristics of iManager N2000................................................ 4.2.3 Graphic User Interface of iManager N2000 ................................... 4.2.4 iManager N2000 Networking .........................................................
4-1 4-2 4-2 4-3 4-5 4-7
Chapter 5 Networking and Application ..........................................................
5-1
5.1 Networking Solution ............................................................................... 5.1.1 Master-slave Subtending ............................................................... 5.1.2 Remote Subtending ....................................................................... 5.1.3 IP-DSLAM Networking ................................................................... 5.1.4 ATM/IP-DSLAM Hybrid Networking ............................................... 5.2 Service Application ................................................................................. 5.2.1 High Speed Internet Access .......................................................... 5.2.2 Leased Line Application ................................................................. 5.2.3 Multicast Service Application ......................................................... 5.2.4 Broadband Test Service ................................................................
5-2 5-2 5-3 5-4 5-6 5-7 5-7 5-8 5-9 5-11
Chapter 6 Technical Specifications ...............................................................
6-1
6.1 System Specifications ............................................................................ 6.2 Interface Specifications ..........................................................................
6-1 6-5
Appendix A Acronyms and Abbreviations ....................................................
A-1
Appendix B Standards and Recommendations ............................................
B-1
B.1 Technical Standards .............................................................................. B.2 Security and Environmental Standards ..................................................
B-1 B-3
HUAWEI
SmartAX MA5100/5103 Multi-service Access Module Technical Manual V200R005
SmartAX MA5100/5103 Multi-service Access Module Technical Manual Manual Version
T2-050222-20040310-C-2.50
Product Version
V200R005
BOM
31026222
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters.
Huawei Technologies Co., Ltd. Address: Administration Building, Huawei Technologies Co., Ltd., Bantian, Longgang District, Shenzhen, P. R. China Postal Code: 518129 Website: http://www.huawei.com Email:
[email protected]
Copyright © 2004 Huawei Technologies Co., Ltd.
All Rights Reserved No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks
, HUAWEI, C&C08, EAST8000, HONET,
, ViewPoint, INtess, ETS, DMC,
TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, M900/M1800, TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA, iTELLIN, HUAWEI OptiX, C&C08 iNET, NETENGINE, OptiX, iSite, U-SYS, iMUSE, OpenEye, Lansway, SmartAX, infoX, TopEng are trademarks of Huawei Technologies Co., Ltd. All other trademarks mentioned in this manual are the property of their respective holders.
Notice The information in this manual is subject to change without notice. Every effort has been made in the preparation of this manual to ensure accuracy of the contents, but all statements, information, and recommendations in this manual do not constitute the warranty of any kind, express or implied.
About This Manual Related Notes This manual applies to the SmartAX MA5100/5103 Multi-service Access Module V200R005.
Related Manuals The following user documents are shipped together with the SmartAX MA5100. Manual
Content
SmartAX MA5100/5103 Multi-service Access Module Technical Manual
It provides an overall introduction to the MA5100/5103, including the software structure, hardware structure, applications and technical specifications.
SmartAX MA5100/5103 Multi-service Access Module Operation Manual
It guides you to configure the system parameters and typical applications of the MA5100 and MA5103.
SmartAX MA5100 Multi-service Access Module Installation Manual
It guides you to install the MA5100, including the installation of the cables, power system and various boards.
SmartAX MA5100/5103 Multi-service Access Module Command Reference
It provides all commands available in the MA5100/MA5103, as well as the usage of the command and examples. The Command Manual is provided only in the documentation CD-ROM that is shipped with the MA5100/MA5103 device.
Documentation CD-ROM
It provides the user documentation in HTML and PDF formats to facilitate retrieve.
The following user documents are shipped together with the MA5103. Manual
Content
SmartAX MA5100/5103 Multi-service Access Module Technical Manual
It provides an overall introduction to the MA5100/5103, including the software structure, hardware structure, applications and technical specifications.
SmartAX MA5100/5103 Multi-service Access Module Operation Manual
It guides you to configure the system parameters and typical applications of the MA5100 and MA5103.
SmartAX MA5103 Multi-service Access Module Installation Manual
It guides you to install the MA5103, including the installation of the cables, power system and various boards.
SmartAX MA5100/5103 Multi-service Access Module Command Reference
It provides all commands available in the MA5100/MA5103, as well as the usage of the command and examples. The Command Manual is provided only in the documentation CD-ROM that is shipped with the MA5100/MA5103 device.
Documentation CD-ROM
It provides the user documentation in HTML and PDF formats to facilitate retrieve.
Organization This manual introduces the characteristics, hardware and software structure, functions, service flow and networking applications of the MA5100/5103. There are six chapters and two appendixes in the manual. Chapter 1 Overview profiles the system characteristics of the MA5100/5103. Chapter 2 System Architecture describes the hardware and software modules of the MA5100/5103, including the boards supported in the MA5100/5103. Chapter 3 Functions and Service Flow discusses in detail the principle and functions of the system modules, and the realization of the service flows under coordination of the modules. Chapter 4 Maintenance Management System presents the features and networking mode of the network management system of the MA5100/5103. Chapter 5 Networking and Application details the various networking modes for different applications. Chapter 6 Technical Specifications lists the technical specifications and the indices of the MA5100/5103 system. Appendixes A and B give the acronyms and abbreviations, as well as the complied standards and protocols.
Intended Audience The manual is intended for the following readers: z
Persons who manage telecommunication enterprises
z
Engineers in telecommunication enterprises
z
Technicians who work with the MA5100/5103
Conventions This manual uses the following conventions:
I. General conventions Convention Arial
Description Normal paragraphs are in Arial.
Convention
Description
Arial Narrow
Warnings, Cautions, Notes and Tips are in Arial Narrow.
Boldface
Headings are in Boldface.
Courier New
Terminal Display is in Courier New.
II. GUI conventions Convention
Description
Button names are inside angle brackets. For example, click button.
[]
Window names, menu items, data table and field names are inside square brackets. For example, pop up the [New User] window.
/
Multi-level menus are separated by forward slashes. For example, [File/Create/Folder].
III. Symbols Eye-catching symbols are also used in the manual to highlight the points worthy of special attention during the operation. They are defined as follows:
Caution, Warning, Danger: Means reader be extremely careful during the operation. Note, Comment, Tip, Knowhow, Thought: Means a complementary description.
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Table of Contents
Table of Contents Chapter 1 Overview ....................................................................................................................... 1-1 1.1 General Introduction .......................................................................................................... 1-1 1.2 System Characteristics ...................................................................................................... 1-2 1.2.1 Abundant Service Interfaces ................................................................................... 1-2 1.2.2 Powerful Networking Capability .............................................................................. 1-2 1.2.3 Integration of ATM-DSLAM and IP-DSLAM............................................................ 1-3 1.2.4 Support of Multicasting Services............................................................................. 1-3 1.2.5 Excellent Scalability ................................................................................................ 1-3 1.2.6 Safe Access ............................................................................................................ 1-3 1.2.7 High QoS................................................................................................................. 1-3 1.2.8 Powerful Switching Capability ................................................................................. 1-4 1.2.9 Multiple Maintenance Modes .................................................................................. 1-4 1.2.10 Carrier-Class Reliability......................................................................................... 1-4 Chapter 2 System Architecture.................................................................................................... 2-1 2.1 Hardware Architecture ....................................................................................................... 2-1 2.1.1 MA5100 ................................................................................................................... 2-1 2.1.2 MA5103 ................................................................................................................... 2-3 2.2 Description of Boards ........................................................................................................ 2-4 2.3 Software Modules .............................................................................................................. 2-7 Chapter 3 Functions and Service Flow ....................................................................................... 3-1 3.1 System Functions .............................................................................................................. 3-1 3.1.1 Main Control Module ............................................................................................... 3-2 3.1.2 IP Service Process Module ..................................................................................... 3-4 3.1.3 ADSL Service Module ............................................................................................. 3-5 3.1.4 LAN Service Module ............................................................................................... 3-7 3.1.5 ISU Module.............................................................................................................. 3-7 3.1.6 SHDSL Service Module .......................................................................................... 3-8 3.1.7 Remote Subtending Module.................................................................................... 3-9 3.1.8 Master-slave Subtending Module.......................................................................... 3-11 3.1.9 Broadband Test Module........................................................................................ 3-12 3.1.10 Environment Supervision & Control Module ....................................................... 3-13 3.2 Service Flow .................................................................................................................... 3-13 3.2.1 xDSL Access Service Flow ................................................................................... 3-13 3.2.2 LAN Leased Line Access Service Flow ................................................................ 3-14 3.2.3 Multicasting Service Flow...................................................................................... 3-15 3.2.4 ISU Service Flow................................................................................................... 3-17 3.2.5 Broadband Test Service Flow ............................................................................... 3-17 i
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Table of Contents
Chapter 4 Maintenance Management System ............................................................................ 4-1 4.1 Command Line Mode ........................................................................................................ 4-1 4.2 NMS Workstation Mode..................................................................................................... 4-2 4.2.1 Hardware and Software Configuration of iManager N2000 .................................... 4-2 4.2.2 Characteristics of iManager N2000......................................................................... 4-3 4.2.3 Graphic User Interface of iManager N2000 ............................................................ 4-5 4.2.4 iManager N2000 Networking................................................................................... 4-7 Chapter 5 Networking and Application ....................................................................................... 5-1 5.1 Networking Solution........................................................................................................... 5-2 5.1.1 Master-slave Subtending ........................................................................................ 5-2 5.1.2 Remote Subtending ................................................................................................ 5-3 5.1.3 IP-DSLAM Networking ............................................................................................ 5-4 5.1.4 ATM/IP-DSLAM Hybrid Networking ........................................................................ 5-6 5.2 Service Application ............................................................................................................ 5-7 5.2.1 High Speed Internet Access.................................................................................... 5-7 5.2.2 Leased Line Application .......................................................................................... 5-8 5.2.3 Multicast Service Application .................................................................................. 5-9 5.2.4 Broadband Test Service........................................................................................ 5-11 Chapter 6 Technical Specifications............................................................................................. 6-1 6.1 System Specifications........................................................................................................ 6-1 6.2 Interface Specifications...................................................................................................... 6-5 Appendix A Acronyms and Abbreviations .................................................................................A-1 Appendix B Standards and Recommendations .........................................................................B-1 B.1 Technical Standards..........................................................................................................B-1 B.2 Security and Environmental Standards.............................................................................B-3
ii
Edited by Foxit Reader Copyright(C) by Foxit Software Company,2005-2007 For Evaluation Only. Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 1 Overview
Chapter 1 Overview Together with the rapid development of broadband Internet services, Huawei launches its own Digital Subscriber Line Access Multiplexer (DSLAM) device series: SmartAX MA5100 Multi-service Access Module (referred to as the MA5100 hereinafter). The MA5100 series DSLAM products provide a variety of methods for service access, including: z
Asymmetric Digital Subscriber Line (ADSL) access
z
ADSL2+ access
z
Single-pair High-speed Digital Subscriber Line (SHDSL) access
z
Local Area Network (LAN) access
1.1 General Introduction The MA5100 features high integrity, abundant service interfaces and flexible networking. Working with the broadband value-added service platforms, the MA5100 can provide sophisticated and sustainable DSLAM solutions to the carriers. The MA5100 series include MA5100 (large capacity), MA5103 (medium capacity) and MA5105 (small capacity). They support flexible networking according to the demands of the carriers, and can be managed by the Huawei iManager N2000 network management system in a centralized way, as shown in Figure 1-1.
Core
BAS
iManager N2000 STM -1/4
FE/GE
ADSL MA5100
FE/SHDSL
IMA /FE
MA5105
ADSL /SHDSL
STM-1/E3/ IMA MA5103
ADSL/ADSL2+
Figure 1-1 MA5100 series networking 1-1
STM-1/E3/ IMA MA5100
ADSL/ADSL2+
Edited by Foxit Reader Copyright(C) by Foxit Software Company,2005-2007 For Evaluation Only. Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 1 Overview
The functions, architecture, and networking applications of the MA5100 are introduced in later chapters.
1.2 System Characteristics Apart from its support on various access services, the MA5100 also supports flexible networking, so as to make full use of existing network resources. The MA5100 system supports smooth capacity expansion, so as to eliminate the impact on other network devices.
1.2.1 Abundant Service Interfaces The MA5100 supports these service interfaces: z
ADSL interface
z
ADSL2+ interface
z
ATM-based SHDSL interface
z
LAN interface
All of these interfaces are in strict compliance with associated international standards and recommendations, and opened for interoperation with other vendors’ devices.
1.2.2 Powerful Networking Capability The MA5100 provides multiple service and system interfaces to make the networking more flexible. The MA5100 provides the following two types of system interfaces:
I. ATM z
STM-4 optical interface
z
STM-1 optical/electrical interface, OC-3c/STS-3c uplink interface
z
E3 electrical interface
z
Inverse Multiplexing over ATM (IMA) interface
II. IP z
Fast Ethernet (FE)
z
Gigabit Ethernet (GE)
Note: z
STM-4 optical interfaces are only used as uplink interfaces.
z
IMA interfaces are only used as downlink interfaces, usually for connecting remote MA5105 (small capacity) devices.
1-2
Technical Manual SmartAX MA5100/5103 Multi-service Access Module z
Chapter 1 Overview
Other system interfaces are used as both uplink and downlink interfaces.
1.2.3 Integration of ATM-DSLAM and IP-DSLAM The MA5100 provides the IP and ATM uplink ports at the same time, so that the DSLAM network can be constructed flexibly according to the resource of the ATM/IP backbone network, service type, as well as requirements on QoS and security.
1.2.4 Support of Multicasting Services The MA5100 supports multicasting in IP-DSLAM and ATM-DSLAM networking modes, supports IGMP Snooping, and manages and controls the multicasting users.
1.2.5 Excellent Scalability The excellent system scalability of the MA5100 is implemented through: z
Service modules
Its modular design facilitates smooth scalability. Based on such design, new services or new subscribers can be added simply by adding corresponding interface modules, without affecting the existing services. z
Master-slave subtending
The MA5100 supports master-slave frame subtending for large capacity applications. z
Remote subtending
The MA5100 supports remote subtending through STM-1, OC-3c and STS-3c interfaces to expand the system’s service capacity under different networking circumstances. The MA5100 also provides remote subtending through IMA/E1 and E3 interfaces over excess transmission resources, to achieve fast but low-cost coverage of ADSL services.
1.2.6 Safe Access Various ATM-based safety control modes can be achieved in ATM-DSLAM networking through coordination between the MA5100 and external ATM equipment. In IP-DSLAM networking, the MA5100 supports the following safety control modes: z
IEEE 802.1Q protocol
z
Binding of MAC address, IP address, and PVC
1.2.7 High QoS The MA5100 provides powerful flow control function. 1-3
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 1 Overview
In ATM-DSLAM application, the MA5100 supports different service types, including: z
Constant Bit Rate (CBR) service;
z
Real time Variable Bit Rate (rt-VBR) service;
z
Non-real time Variable Bit Rate (nrt-VBR) service;
z
Unspecified Bit Rate (UBR).
The MA5100 allocates different priority levels to different service types, and it also supports flow shaping and traffic control. In IP-DSLAM application, the system supports Committed Access Rate (CAR) and allocates bandwidth based on 802.1p priority level to ensure high QoS of IP service.
1.2.8 Powerful Switching Capability The MA5100 supports service switching between the service interfaces and the uplink interfaces and among various service interfaces through the cell bus. The total switching capacity is 2.4Gbps. Based on this switching capacity, the MA5100 ADSL interfaces can communicate with the LAN interfaces easily through the cell bus, which makes it possible to construct intelligent residential community networks. It also enables the interworking between two internal LAN interfaces to implement LAN leased line interconnection.
1.2.9 Multiple Maintenance Modes The MA5100 supports multiple maintenance modes, as well as complete alarm management, test, and fault diagnosis/tracing functions. z
It supports local and remote maintenance in command line through the serial port, Telnet connection or MODEM dialup;
z
It supports management by the iManager N2000 NMS. The NMS provides centralized management of terminal devices and broadband test management of xDSL lines;
z
It supports F4- and F5-class operation administration and maintenance (OAM);
z
It supports monitoring on the power and environment of the cabinet in which the MA5100 is accommodated.
1.2.10 Carrier-Class Reliability Reliability is taken into full consideration in the MA5100 system design, hardware design and software design. Following are some measures taken to guarantee the MA5100 reliability: z
The main control board MMX supports hot backup and active/standby switchover. (The MA5103 does not support hot backup of MMX).
1-4
Technical Manual SmartAX MA5100/5103 Multi-service Access Module z
Chapter 1 Overview
The MA5100 supports redundancy hot backup of master frame subtending board (SEPA/SEPL) in master-slave subtending networking.
z
The MA5100 supports 155M upstream optical interface for master and slave boards of MMX with Multiplex Section Protection (MSP) function to trace and protect SDH line.
z
With redundancy design (N+1) for primary power supply, the MA5100 provides real-time monitoring and alarm functions.
z
With modular and platform design of software system, the MA5100 has carrier-class capability to handle the abnormalities, thus ensuring high system reliability.
z
The trans-platform NMS supports multiple operating systems (Sun Solaris and HP-UNIX) and database systems (Sybase and Oracle).
1-5
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 2 System Architecture
Chapter 2 System Architecture The MA5100 and the MA5103 have the same functional modules and provide similar services, but they are in different structures and have different service capacities.
2.1 Hardware Architecture 2.1.1 MA5100 I. Cabinet The MA5100 can be installed in the H66-18 and H66-22 cabinets of Huawei, as shown in Figure 2-1.
Figure 2-1 Outlook of H66-18 and H66-22 cabinets The dimensions (W×D×H) of the cabinets are: z
H66-18: 600mm×600mm×1800mm
2-1
Technical Manual SmartAX MA5100/5103 Multi-service Access Module z
Chapter 2 System Architecture
H66-22: 600mm×800mm×2200mm
Compared with other cabinets, the H66-18 and H66-22 cabinets have these features: z
Convenient maintenance: cabling and maintenance of the boards are performed from the front side of the cabinet;
z
Less space occupied: the cabinets can be installed side by side, back to back or against the wall, which saves the space for the cabinets;
z
Free of foot: no inter-space is left between the cabinet and the cement ground or anti-static floor after the installation;
z
Larger inner space: more modules can be installed in the cabinet;
z
Design for manufacture and assembly (DFMA) that cuts the structural cost;
z
Neat and modern outlook.
II. Service frame The MA5100 service frame is 10U in height (including 1U fan frame). Its dimensions (H×D×W) are: 436.0mm×420.0mm×444.5mm, as shown in Figure 2-2.
Figure 2-2 Structure of the MA5100 service frame The MA5100 can be powered by 110V/220V AC supply or -48V DC supply. z
When the AC power supply is adopted, the cabinet is equipped with a built-in primary power module at the top, which outputs -48V DC power. The number of power modules is subject to the requirements on the capacity.
z
When the DC power supply is used, the distribution box is needed instead of the power module, and the independent -48V supply is led in from outside of the cabinet.
The MA5100 uses fans for heat dissipation. The air enters the frame from the bottom of the frame, passes the boards and exhausts from the top of the frame. There are 48V/0.21A DC fans in the fan frame, and each fan frame can be installed and dismounted independently. Each fan is equipped with a detection terminal to check whether the fan is running normally or not. 2-2
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 2 System Architecture
III. Board configuration in the service frame An MA5100 frame has 16 slots, numbered from 0 to 15. The main control board MMX is designed to be installed in slot 7 and slot 8 only, and the service boards are installed in the rest 14 slots. The backplane and the MMX are mandatory, while other service boards can be configured flexibly depending on the actual needs. The board configuration in the MA5100 service frame is shown in Figure 2-3. 15
Service board Service board Service board Service board Service board Service board Service board
Slots
8
Main control board Main control board Service board Service board Service board Service board Service board Service board Service board
0
1
7
Figure 2-3 Board configuration in the MA5100 service frame
2.1.2 MA5103 I. Chassis The height of the MA5103 chassis is 5U. This chassis can be either installed in the H66-18/H66-22 cabinet, or just placed on a table. Figure 2-4 shows the outlook of the MA5103 chassis.
Figure 2-4 Outlook of the MA5103 chassis Dimensions
of
the
MA5103
436.00mm×420.00mm×222.25mm.
2-3
chassis
are
(W×D×H):
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 2 System Architecture
The power supply interfaces on the top of the MA5103 chassis are connected with -48V DC power supply to provide power for the system. The test interfaces on the top of the MA5103 chassis are connected with the external broadband test management system to test the xDSL lines. The fan frame is installed on the right of the MA5103 chassis for heat dissipation.
II. Board configuration There are seven slots in the MA5103 chassis, numbered from 1 to 7. Slot 7 is designated for the main control board MMX, while the rest six slots are for the service boards, as shown in Figure 2-5. NEG(-) RTN(+)
TEST LINE
Service board
2
Service board
3
Service board
4
Service board
5
Service board
6
Service board
7
Main control board
Fan frame
1
Figure 2-5 Board configuration in MA5103 chassis The backplane and the main control board of the MA5103, just like those of the MA5100, are mandatory, while the service boards are configured flexibly according to the service type desirable.
2.2 Description of Boards Figure 2-6 shows the hardware configuration of the MA5100.
2-4
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Chapter 2 System Architecture
Master fra me backplane I S U
L A N D
S H L A
S H L A
A D C E
backplane A S D M L X E Slave frame 1
A D L J
M M X
A S D M L X E Slave frame 2
D L E
A D L H
L A N D
A D L E
A S D M L X E Slave frame 3
A I U A
S E P
S E P
backplane
backplane
backplane A
A D L E
M M X
A D L E
A S D M L X E Slave frame 4
A D L E
Figure 2-6 Hardware configuration of the MA5100 Table 2-1 lists all the boards that are supported in the MA5100, as well as the functions of the boards. Table 2-1 Descriptions on the boards of the MA5100 Board
Interfaces
Functions
With different subboards, the MMX supports these ATM system interfaces:
MMX
STM-4
STM-1
OC-3c
STS-3c
E3
IMA
System control and management of the MA5100, as well as service switching.
Ports on the front panel of the MMX:
Backplan e
CON (maintenance serial port)
ETH (maintenance network port)
MON (monitoring port) Provides the cell bus with a bandwidth of 2.4G.
None
2-5
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Board
Chapter 2 System Architecture
Interfaces
Functions
With different subboards, the AIUA provides:
AIUA
STM-1
OC-3c
STS-3c
E3
IMA
Provides remote subtending using the subtending interface provided by different subboards.
SEPA
In master frame. Provides four LVDS interfaces.
SMXB
In slave frame. Provides active/standby LVDS interfaces.
SEPL
In slave frame. Provides four STM-1 optical/electrical interfaces.
SMXL
In slave frame. Provides two active/standby STM-1 optical/electrical interfaces.
ADLE/AD LG
Provides 32 ADSL interfaces, with Splitter integrated in the board.
ADLH/AD LJ
Provides 32 ADSL interfaces, with complex-impedance Splitter integrated in the board.
Provides ADSL over POTS access service.
ADCE
Provides 32 ADSL2+ interfaces, with Splitter integrated in the board.
Provides high speed, long transmission distance ADSL2+ access service
SHLA
Provides 32 SHDSL interfaces
The provided SHDSL service rates are symmetric.
IMUB
Provides 16 E1 interfaces
Provides interconnection between the IMA interface with the remote IMA device.
BTSB
Provides the serial port and network port to connect the external testing device.
Provides the broadband test function.
two Provides master-slave subtending to expand ADSL service capacity.
With different interface subboards, the LAND provides these interfaces:
LAND
8%10BASE-T/100BASE-TX interface
1%1000BASE-SX/LX optical interface (single mode or multimode)
1/2/4/8%100BASE-FX interface (single mode or multimode)
2-6
Based on the networking requirements, the system uses various interfaces for LAN interconnection interface and IP-DSLAM uplink ports. GE interface is only for IP-DSLAM uplink.
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
Board
Chapter 2 System Architecture
Interfaces
Functions
The ISU provides these interfaces:
8%10BASE-T/100BASE-TX interface
2%1000BASE-SX/LX optical interface (single mode or multimode)
ISU
The built-in ISU is connected with the LAND through the Ethernet port for authentication, accounting and management of the subscribers.
ESC
None
The Environment Supervision &Control module (ESC) has no external interfaces, and it communicates with the MMX through the serial port on the backplane of the power frame. ESC is installed on the power frame to monitor the states of the power supply and the environment.
TCFB/FC B/FDMU
Provides serial ports to communicate with the MA5100.
Controls the running of the fans. TCFB/FCB are installed in the fan frame of the MA5100, FDMU is installed in the fan frame of the MA5103.
2.3 Software Modules With modular and platform design, the MA5100 software system consists of the MMX software and the service software. The MMX software resides on the MMX, managing and maintaining the MA5100 system, and providing the management and maintenance interfaces. The service software resides on the service boards, managing the boards and implementing the services. Figure 2-7 shows the overall structure of the MA5100 software system. NMS
Serial port
Inband/outband MA5100 software
T elnet Inband/outband
MMX software Cell Bus
Service software
Service software
Figure 2-7 Overall structure of the MA5100 software
2-7
Service software
Technical Manual SmartAX MA5100/5103 Multi-service Access Module
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The MA5100 MMX software consists of these modules: z
Bottom-layer drive module, the foundation for operation of other modules, which drives all the bottom-layer software and hardware;
z
System management module, which manages and maintains the MA5100 system resource, the MMX and the service boards;
z
Connection management module, which manages the Permanent Virtual Channel (PVC)/ Permanent Virtual Path (PVP), bandwidth resources and connection resources;
z
NM agent module, which provides agent interface for the NMS, and implements SNMP management;
z
Command line interface module: which provides interface for character mode terminals and for Telnet maintenance;
z
Loading module, which implements local and remote loading of program for the MMX and the service boards;
z
Alarm module, which implements alarm report, alarm filtering, alarm statistics and history alarm recording functions;
z
Active/standby synchronous module, responsible for data synchronization on the active and standby MMX boards;
z
Patch management module, which completes adaptation and error correction on the MMX software, and enables dynamic upgrade of the system;
z
Environment monitoring module, which monitors the power frame, the fan frame, the distribution frame, and reports the alarms generated on these frames.
Compared with the MMX software, the MA5100 service software is simpler, as shown in Figure 2-8. Protocol entity
Alarm
Drive, diagnose
Service management
Data management
Specific service
Command line
Dispatch
Loading, backup
Q.921 interboard communication
Figure 2-8 Structure of MA5100 service software The service software consists of two parts: special service part and versatile part. The versatile part provides dispatch management, command line interpretation, loading and backup function. The special service part contains the service management 2-8
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module, the data management module and the alarm management module, as well as the protocol entity module and drive/diagnose module, which are optional.
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Chapter 3 Functions and Service Flow The functionalities of the MA5100 are implemented through standard and independent hardware and software modules. They make the system structure clear, scalable, easy to maintain, and easy to upgrade. Through coordination among the functional modules, the MA5100 is capable of supporting abundant access services and flexible networking modes.
3.1 System Functions The MA5100 consists of the following function modules in terms of hardware: z
Main control module (MMX)
z
IP service process module
z
Service modules, including ADSL service, SHDSL service, LAN service modules
z
Subtending modules, including master-slave subtending module and remote subtending module
z
Maintenance and test modules, including broadband test module and environment supervision & control (ESC) module.
Figure 3-1 illustrates the system architecture of the MA5100.
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MA5100 Master frame ADSL
Backplane
ADSL service
SHDSL
CELL BUS
FE IP servic e process
SHDSL service
FE
LAN service
STM-1/E3/IMA OC-3c/STS-3c
FE/GE
ISU
Main control (MMX)
Remote subtend ing
FE/GE
IM A/ E3/ OC-3c/ST S -3c STM -1 optical/electrical
ESC Mas ter-slave subtending
LVDSX4 or 155M Slav e frame 1
Slave frame n
SM XB
SM XB CELL BUS
CELL BUS
ADSL serv ice
ADSL service
Figure 3-1 Functional modules of the MA5100 The backplane is the bridge that connects all the functional modules. The MMX communicates with all the functional modules through the backplane, and implements control, management, and service switching on the MA5100. The following describes the compositions and functions of the modules.
3.1.1 Main Control Module This module consists of the MMX board, the subboards and the corresponding software. The module is the core to implement service convergence and switching, as well as device control and management. Its functions are as follows:
I. Service switching and management z
The MMX converges the ATM cell flows from the service modules, and transmits them to the backbone network through the broadband uplink interfaces. It also provides interconnection between the service ports of the MA5100 through its service switching function.
z
The MMX is designed based on ATM technology, and possesses powerful management functions on services at ATM layer. The MMX is able to provide
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QoS for subscribers through congestion management, flow shaping and setting of flow policies.
II. System control, maintenance and management z
The MMX controls and manages the whole MA5100 system, and provides alarm management and fault diagnosis for the device. Working with the ESC module, the MMX can monitor the running states of the device.
z
The MMX supports loading of data and program, and provides Stratum 3 clock for the system.
z
The MMX supports F4 and F5 Operation Administration and Maintenance (OAM) flows, such as Continuity Check, Alarm Indication Signal, Remote Defect Indication, and Loopback.
z
The MMX provides maintenance serial port (CON) and Ethernet port (ETH) to facilitate maintenance from a terminal or the NMS. It also provides a monitoring port (MON) that connects with the ESC module to implement monitoring and alarm management for the device.
III. ATM interface z
MMX can provide multiple interfaces through the attached subboards, such as STM-4 optical interfaces, STM-1 optical/electrical interfaces, OC-3c/STS-3c interfaces, E3 interfaces and IMA interfaces.
z
The first 155M of active/standby MMX uplink interface supports Multiplex Section Protection (MSP) function, enabling SDH line monitoring and protection. When the optical path connected to the first optical interface on active MMX goes wrong, the system will automatically switch the services through this path to that connected to the first optical interface on standby MMX. MA5103 does not support the MSP function.
z
All the above interfaces support user-network interface and network-network interface.
The MMX board can hold two subboards. Table 3-1 lists all the subboards supported on the MMX.
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Table 3-1 Subboards supported by MMX Subboard
Description
O1CTG
1%155M optical interface, single mode, 30km, supporting STM-1 and OC-3c frame formats
O1CTB
1%155M optical interface, multimode, 2km, supporting STM-1 and OC-3c frame formats
O2CTG
2%155M optical interface, single mode, 30km, supporting STM-1 and OC-3c frame formats
O2CTB
2%155M optical interface, multimode, 2km, supporting STM-1 and OC-3c frame formats
E1CT
1%155M electrical interface, supporting STM-1 and STS-3c frame formats
E2CT
2%155M electrical interface, supporting STM-1 and STS-3c frame formats
E8IT
8%E1 IMA interface, 2Mbit/s
E13T
1%E3 ATM electrical interface, 34Mbit/s
E23T
2%E3 ATM electrical interface, 34Mbit/s
O1HDA
1%STM-4 optical interface, multimode, 2km
01HDB
1%STM-4 optical interface, single mode, 15km
01HDC
1%STM-4 optical interface, single mode, 40km
3.1.2 IP Service Process Module This module consists of the LAND board, the related subboards and the corresponding software. The LAND is used to terminate the ATM PVC and map the ATM cells with the Ethernet frames. The subboards are used to provide IP uplink interfaces to send such Ethernet frames to the IP network, so that the MA5100 is able to provide IP-DSLAM solutions. The LAND supports Internet Group Management Protocol (IGMP) and IGMP Snooping, and supports multicast services. Working with the MMX and the multicast routers on the upper layer, the LAND provides video multicast services for xDSL subscribers. This module: z
Supports Internet Group Management Protocol (IGMP) and IGMP Snooping to provide video multicast services for xDSL subscribers.
z
Supports restriction on maximum number of MAC address learning on each PVC.
z
Provides a variety of IP uplink ports by attaching different subboards. Among the interfaces, FE port supports the Trunk function, and each group binds 2 to 4 ports. 3-4
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Supports the port-based IEEE 802.1q VLAN management, up to 4096 VLANs can be made available.
z
Supports CAR and the IEE 802.1p priority management to guarantee the service QoS.
z
A maximum of two LAND boards are supported to uplink the services.
Table 3-2 lists all the FE/GE uplink interface subboards that are supported on the LAND board. Table 3-2 Subboards that are supported by LAND Subboard
Interface
O1GTA
1×1000BASE-SX optical interface, multimode, 500m
O1GTF
1×1000BASE-LX optical interface, single mode, 10km
E8FS
8×10BASE-T/100BASE-TX interface, 100m
O1FSB
1x100BASE-FX interface (multimode, 2km)
O1FSF
1x100BASE-FX interface (single mode, 15km)
O1FSG
1x100BASE-FX interface (single mode, 40km)
O2FSB
2x100BASE-FX interface (multimode, 2km)
O2FSF
2x100BASE-FX interface (single mod, 15km)
O2FSG
2x100BASE-FX interface (single mod, 40m)
O4FSB
4×100BASE-FX optical interface, multimode, 2km
O4FSF
4×100BASE-FX optical interface, single mode, 15km
O4FSG
4×100BASE-FX optical interface, single mode, 40km
O8FSB
8×100BASE-FX optical interface, multimode, 2km
O8FSF
8×100BASE-FX optical interface, single mode, 15km
O8FSG
8x100BASE-FX interface (single mode, 40km)
3.1.3 ADSL Service Module This module provides ADSL interfaces that are based on telephone lines (ADSL over POTS) and based on ISDN lines (ADSL over ISDN). Working with the ATU-R, it provides ADSL access for subscribers. The ADSL service takes different frequency bands from those used by POTS/ISDN services, so ADSL over POTS/ISDN does not affect normal POTS/ISDN services on the lines. The ADSL service module consists of the ADSL service process module and the splitter. In actual application, all the upstream signals from the subscribers are sent to
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the splitter, which separates the ADSL signals from the POTS/ISDN signals, and sends the ADSL signals to the ADSL service process module. The ADSL service process module implements Discrete Multi-Tone (DMT) modulation/demodulation on the signals, adapts ATM cell rates, de-multiplexes and multiplexes the ADSL signals, and then sends the data to the CELL BUS. The downstream ADSL service data are sent to the ADSL service process module from the CELL BUS, and become ADSL signals after the process, and then sent to the ATU-R device through the POTS/ISDN lines. The following table lists all the boards that are supported on the ADSL service module. Table 3-3 Boards that are supported by the ADSL service module Board
Description
ADLE
The board, with a built-in Splitter, provides 32 ADSL interfaces (ADSL over POTS), and does not support capture operation.
ADLG
The board, with a built-in Splitter, provides 32 ADSL interfaces (ADSL over POTS), and supports capture operation.
ADLH
The board, with a built-in complex-impedance Splitter, provides 32 ADSL interfaces (ADSL over POTS), and does not support capture operation.
ADLI ADLJ
The board, with a built-in double-impedance Splitter, provides 32 ADSL interfaces (ADSL over POTS), and supports capture operation.
ADCE
The board, with a built-in Splitter, provides 32 ADSL2+ interfaces (ADSL over POTS), and does not support capture operation.
The ADSL service module: z
Separates ADSL service from POTS/ISDN services. Supports over-current and over-voltage protection on the ports, and prevents damage to the device by surge current, lightning strike and accidental contact with power lines;
z
ADSL Service module provides ADSL interfaces and ADSL2+ interfaces. Compared with ADSL interfaces, ADSL2+ interfaces feature in their high speed, and long transmission distance function;
z
Adopts DMT modulation and demodulation to support asymmetric transmission rates on the upstream and downstream lines;
z
Provides the capture function and coordinates with the broadband test device to provide the function of testing ADSL lines.
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3.1.4 LAN Service Module This module consists of the LAND board, and the corresponding software. This module provides the LAN subscribers with accesses to the Internet and isolates different subscribers through VLAN, so as to provide broadband connection to the Internet and interconnection between leased line subscribers. In LAN access application, the FE interfaces on the LAND receive the upstream Ethernet frames from the LAN subscribers. After that, the Ethernet frames are encapsulated based on RFC1483 (Bridged) and mapped as ATM cell flow. The ATM cell flow is sent through the CELL BUS on the backplane to the MMX, and sent to the upper-layer network. The downstream ATM cell flow from the CELL BUS is restored into Ethernet frames on the LAND, and then sent to the LAN subscribers. This module supports: z
various Ethernet interfaces like FE optical/electrical interface and GE optical port;
z
Trunk function on the FE port, in which each group supports the binding of two to four ports;
z
auto-detection on Straight-through cable and Crossover cable on the ports;
z
port mirror;
z
broadcasting, multicasting, and compression on unknown unicast packet;
z
port-based IEEE 802.1q VLAN management, and supports a maximum of 32 VLANs;
z
4096 ATM connections (PVCs);
z
flow shaping for leased line subscribers through buffer, queuing and dispatching.
LAND provides the following types of interfaces. Table 3-4 Interfaces provided on LAND Board LAND
Interface 8%10BASE-T/100BASE-TX interfaces 1/2/4/8%100BASE-FX interfaces (single mode/multimode)
3.1.5 ISU Module The ISU (Intelligent Service Unit) module consists of the ISU board and the corresponding software. The module is used in IP-DSLAM networking for subscriber authentication, accounting and management. The ISU:
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Supports VLAN and PPPoE, provides multiple authentication modes (port
z
binding authentication, Web authentication and fast Web authentication) for fixed line and wireless subscribers; z
Classified control on access services according to domain and user name;
z
Possesses high speed forwarding, data switching, route processing and management functions on subscriber and device;
z
Provides accounting data based on traffic or time;
z
Provides RADIUS-based accounting information. ISU is able to store 50,000 tickets in local memory, or send the accounting information to the AAA server at any time;
z
Supports static or dynamic allocation and management of IP addresses;
z
Supports IGMP, and implements management on multicasting subscriber groups together with the LAND.
Table 3-5 lists the interfaces provided on the ISU. Table 3-5 Interfaces provided on ISU Board
ISU
Interface 2×GE optical Ethernet interfaces 8×FE electrical Ethernet interfaces
Remarks ISU is inside the MA5100 service frame, and connects with LAND (as IP service process module) through its Ethernet port.
3.1.6 SHDSL Service Module This module consists of the SHLA and the corresponding software. It connects with remote STU device through twisted pair cables to provide symmetric high-speed leased line service. It is designed to meet the needs of small to medium enterprises and SOHO broadband subscribers. The interfaces on the boards are shown below. Table 3-6 Interfaces on the SHDSL service modules Board SHLA
Interface 32×channel SHDSL interface
Remarks Provides symmetrical access service. The rate ranges from 192kbit/s to 2312kbit/s.
In SHDSL access application, SHLA processes the SHDSL signals, and maps the asynchronous ATM cell flow with synchronous SHDSL channel. It maps the payload in the upstream SHDSL frames into ATM cell flows, and sends them to the CELLBUS. The downstream cell flows are mapped into the payload of the SHDSL frame in octets, 3-8
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and then extracted at the opposite end. Error detection on the header is also implemented. Functions of the SHDSL service module include the following: z
The board provides 32 dual-line loop interfaces in TC-PAM mode and symmetrical transmission mode. The transmission rate for the dual-line SHDSL is 192kbit/s to 2312kbit/s. The SHDSL line rate is auto-adjustable according to transmission and noise level. The step to adjust the dual-line SHDSL is 8kbit/s;
z
The SHLA supports binding of the adjacent two ports, and works with the corresponding terminal devices to provide 2-pair (4-line) SHDSL solutions, with a rate from 384kbit/s to 4624kbit/s;
z
It supports ITU-T Recommendation G.991.2 Annex A and Annex B;
z
The SRU or STU-R derives power supply from external power unit. The SHLA board communicates with the external power unit and performs remote monitoring on the power supply;
z
It queries port parameters including the upstream and downstream service rates, noise margin, output power and line attenuation;
z
Online upgrading of firmware and board software to support remote maintenance and upgrading;
z
It supports report of board alarm and line alarm, including states alarm for line interfaces, and abnormality alarm on remote power supply on subscriber interface;
z
Each SHDSL interface supports multiple PVCs.
3.1.7 Remote Subtending Module The module consists of the AIUA board, the subboards, the IMUB board, and the corresponding software. It is used in networking of multiple MA5100 devices or for interconnection with other ATM devices.
I. AIUA AIUA provides multiple ATM interfaces by attaching different subboards for subtending connection with the remote ATM devices. The following table lists the types and functions of the subboards supported by AIUA.
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Table 3-7 Subboards supported on AIUA Subboard
Interface
Function
O1CTG
1×155M optical port, single mode, 30km
O1CTB
1×155M optical port, multimode, 2km
O2CTG
2×155M optical ports, single mode, 30km
O2CTB
2×155M optical ports, multimode mode, 2km
E1CT
1×155M electrical interface
E2CT
2×155M electrical interface
The optical interface supports STM-1 and OC-3c frame formats. The upstream STM-1/OC-3c frames are converted into ATM cell and sent to AIUA; the downstream ATM cells are mapped into STM-1/OC-3c frame format and sent to the 155M optical interface.
The electrical interface supports STM-1 and STS-3c frame formats. The upstream STM-1/STS-3c frames are converted into ATM cell and sent to AIUA; the downstream ATM cells are mapped into STM-1/STS-3c frame format and sent to the 155M electrical interface. The upstream E1frames from multiple E1 links are multiplexed into one ATM cell flow on the IMA; the downstream ATM cell flow is demultiplexed into multiple E1 links.
E8IT
8×E1 IMA port
E13T
1×E3 ATM electrical interface
E23T
2×E3 ATM electrical interfaces
This port supports E3 frame format. The upstream E3 frames are converted into ATM cell, while the downstream ATM cell flow is mapped into E3 frames.
Functions of the AIUA remote subtending module are as follows: z
AIUA supports two subboards, and provides one to four STM-1 optical/electrical interfaces, one to four OC-3c/STS-3c interfaces, one to four E3 interfaces, and eight E1 IMA reversed multiplexing interfaces;
z
ATM ports support UNI/NNI modes;
z
VPI/VCI value ranges support stepless adjustment, in which VPI ranges from 1 to 256, and VPI%VCI remains constantly at 16,384;
z
Supports conversion of cell VPI/VCI, and different UNI interfaces are able to use the same VPI/VCI repeatedly;
z
Supports optional flow statistics according to connection or physical port;
z
Provides external memory that is able to store 512k cells, and provides shared queue structure that implements dispatch management on each connection;
z
Supports CBR, rt-VBR, nrt-VBR and UBR. Multiple dispatch algorithms are given for different services, in order to provide efficient flow control, flow shaping, congestion management and QoS for each connection;
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Supports optional Early Packet Discard (EPD)/ Partial Packet Discard (PPD) function, and supports optional process on the Explicit Forward Congestion Indication (EFCI);
z
Provides OAM loopback, continuity check and error indication for all connections.
II. IMUB The IMUB provides the E1 IMA interface for subtending connection with remote MA5100 devices (such as MA5105), or for connection with other ATM devices that provide the standard IMA interface. Downstream: IMUB receives ATM cells from the source port through CELL BUS which are demultiplexed into multiple E1 links and transmitted to remote ATM devices. Upstream: IMUB receives ATM cells that are demultiplexed into multiple E1 links and transmitted from remote devices, restores these cells into an ATM cell flow, and transmits them to the destination port through CELL BUS. Functions of the IMUB remote subtending module are as follows: z
Provides 16 E1 IMA interfaces and supports a maximum of 8 IMA groups;
z
VPI/VCI value ranges support stepless adjustment, in which VPI ranges from 1 to 256, and VPI%VCI remains constantly at 16,384;
z
Supports conversion of cell VPI/VCI, and different UNI interfaces are able to use the same VPI/VCI repeatedly;
z
Supports optional flow statistics according to connection or physical port;
z
Supports CBR, rt-VBR, nrt-VBR and UBR. Multiple dispatch algorithms are given for different services, in order to provide efficient flow control, flow shaping, congestion management and QoS for each connection;
z
Supports optional Early Packet Discard (EPD)/ Partial Packet Discard (PPD) function, and supports optional process on the Explicit Forward Congestion Indication (EFCI).
3.1.8 Master-slave Subtending Module The MA5100 supports master-slave subtending by subtending slave frames to the MA5100 master frame, in order to expand the system capacity for ADSL subscribers. The master-slave subtending module consists of the SEPA board, the SMXB board, the SEPL board, the SMXL board, and corresponding software, and supports the SEPA/SMXB and SEPL/SMXL subtending modes. Table 3-8 describes the boards on the master-slave subtending module.
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Table 3-8 Boards on the local subtending module Subtending
Board
Description
SEPA
In master frame. Provides four LVDS interfaces.
SMXB
In slave frame. Coordinates with the SEPA board and provides two active/standby LVDS interfaces.
SEPL
In master frame. Provides four 155M STM-1 optical/electrical interfaces.
SMXL
In slave frame. Coordinates with SEPL and provides two active/standby STM-1 optical/electrical interfaces.
SEPA/SMXB
SEPL/SMXL
Function
The MA5100 can be configured with two sets of SEP boards, two boards for each set to work in active/ standby mode respectively. The SEP can subtend up to eight slave frames.
Compared with SEPA/SMXB, SEPL/SMXL has these characteristics: z
Enhances the slave frame’s capacity to support multicast for ADSL subscribers;
z
Has more flexible networking mode, supporting MA5100- and MA5103-type slave frames, and SEPA/SMXB only supports MA5100-type slave frames.
Functions of the master-slave subtending module are as follows: z
High speed electrical interface subtending: uses LVDS high speed serial differential signals to implement the subtending; each frame provides upstream bandwidth of 90Mbit/s, and downstream bandwidth of 180Mbit/s;
z
STM-1 interface subtending: each frame provides upstream and downstream bandwidths of 149Mbit/s;
z
The master and slave frames are subtended by using the star topology. This ensures the master/slave frames work independently, thus maintaining high service reliability;
z
Supports SEPA/SEPL redundancy hot backup, thus maintaining high service reliability.
3.1.9 Broadband Test Module The MA5100 provides a built-in broadband test module to detect the state of the xDSL lines. This module consists of the BTSB and the corresponding software program. It tests the state of the xDSL lines following the instructions given by the NMS, the carrier’s broadband test management system, or MMX according to the specific networking mode. The test results are not only the basis for activating a subscriber line, but also used to locate the failure that occurs on the subscriber line or the office side. The broadband test module supports digital multi-meter test (DMM), central office (CO) emulation test, and cable quality test (CQT).
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The MA5100 also provides test bus interface, so that external test equipment is able to be used to test the xDSL lines.
3.1.10 Environment Supervision & Control Module This module consists of the power monitoring unit, the distribution monitoring unit, ESC board and the fan monitoring unit. It monitors multiple environment factors such as ambient temperature, relative humidity, smoke, water, access control and power supply. The module communicates with the MMX through serial port. When abnormal parameters are found, the module will generate alarms. The upper and lower thresholds of some of the environmental alarms can be configured through command line or NMS, then sent to various monitor units, and used to determine whether alarms shall be generated. The module is also able to adjust the running speed of the fans according to ambient temperature.
3.2 Service Flow The following introduces some of the most typical service flows of the MA5100.
3.2.1 xDSL Access Service Flow The MA5100 provides ADSL and SHDSL accesses. Figure 3-2 shows the service flow.
ATM/IP
MA5100/5103
STM-1
MMX
FE/GE
LAND
ADSL
SHDSL
ATU-R
STU-R
Figure 3-2 xDSL access service flow
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I. Upstream z
ADSL/SHDSL (ATM-based) receives the xDSL signals from ATU-R/STU-R;
z
ADSL/SHDSL converts the xDSL signals into ATM cell flow;
z
In the case of ATM-DSLAM network, ATM cell flow is sent to MMX, then to the upper layer ATM network through the ATM interface, and implements ATM-DSLAM application;
z
In the case of IP-DSLAM, the ATM cell flow is sent to LAND where it is converted into Ethernet frame, then sent to the upper layer IP network through the IP interface on the LAND. In this way, the IP-DSLAM application is implemented. When congestion occurs in the network, LAND can dispatch the upstream Ethernet frame based on the set 802.1p priority level, thereby ensuring the IP service QoS.
II. Downstream z
In the case of ATM-DSLAM, xDSL service data (in the form of ATM cell flow) are sent to the MA5100 through the uplink interfaces on MMX. The xDSL service data are converted into ATM frames by the MMX, and sent to xDSL;
z
In the case of IP-DSLAM, the xDSL data (Ethernet frame) is sent to LAND, then sent to MA5100 through the upstream interface on the LAND. Land converts Ethernet frame into ATM frame and sends xDSL through its cell bus. When congestion occurs in the network, LAND can dispatch the downstream Ethernet frame based on the set 802.1p priority level, thereby ensuring the IP service QoS.
z
After being processed by xDSL, ATM cell flow is converted into xDSL signals, and sent to the remote ATU-R/STU-R.
3.2.2 LAN Leased Line Access Service Flow Figure 3-3 shows the service flow of LAN Leased Line Access Service.
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ATM/IP
MA5100
STM-1
MMX
LAND FE
FE/GE
LAND
LAND FE
Figure 3-3 Service flow in LAN leased line access
I. Upstream z
The Ethernet frames from the LAN subscriber are sent to the LAND (LAND works in leased line access mode) through the FE port interfaces;
z
Ethernet frames are converted into ATM cell flow on the LAND and sent to MMX/LAND (LAND works in IP-DSLAM mode);
z
ATM cell flow is processed by MMX/LAND and sent to upper layer ATM/IP network.
II. Downstream z
LAN service data are sent to the MA5100 through the uplink interface on MMX/LAND;
z
After the process on the MMX/LAND, the LAN service data are converted into ATM cell flow and sent to LAND;
z
After the process on the LAND, the ATM cell flow is converted into Ethernet frame and sent to the LAN subscriber.
3.2.3 Multicasting Service Flow The MA5100 supports IP-DSLAM and ATM-DSLAM multicast services, as shown in Figure 3-4:
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ATM/IP STM-1
FE/GE
MA5100
LAND
MMX
xDSL
IGMP packet and multicast control message
xTU-R
Video frequency stream
Figure 3-4 Multicast service flow z
When an xDSL subscriber selects a multicasting program, the subscriber terminal sends IGMP packet to the MA5100 and requests to be added into the multicast group for the program;
z
The LAND on the MA5100 receives the IGMP packet and sends the subscriber information to MMX;
z
MMX authenticates the subscriber. If the subscriber has the authority, MMX shall send a confirmation to the LAND, so that the xDSL port of the subscriber can be added into the multicast group;
z
In IP-DSLAM application, LAND receives the video stream from the video server, and broadcasts it to all the xDSL ports; in ATM-DSLAM application, MMX shall send the video stream to the LAND, and the LAND shall broadcast the video stream to all the xDSL ports;
z
If the xDSL port belongs to the multicast group, the video stream shall be received and sent to the subscriber; if the port does not belong to the multicast group, the video stream shall be discarded;
z
When the subscriber logs off, the subscriber terminal sends an IGMP packet to inform the MA5100;
z
When the LAND detects the IGMP packet, the message is forwarded to the MMX, which controls the xDSL to remove the subscriber xDSL port from the multicast group;
z
LAND is able to send IGMP packets to all the multicast subscribers regularly in order to query the state of the subscribers, and maintain the multicast group according to responses from the subscribers.
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3.2.4 ISU Service Flow The MA5100 supports built-in ISU for authentication, authorization and accounting of the online subscribers. Figure 3-5 illustrates the ISU service flow in which the subscriber logs in through ADSL port.
IP network
MA5100
FE/GE FE
ISU
LAND
ADSL
ATU-R
ADSL service flow Authentication, accounting flow
Figure 3-5 ISU service flow z
When the subscriber establishes the connection with the ISU through PPPoE or other modes, the subscriber information is sent to the ISU;
z
ISU authenticates the subscriber. If the subscriber cannot pass the authentication, the login request will be rejected; if the login is successful, ISU starts accounting on the subscriber;
z
The service data from the subscriber are forwarded to ISU through ADSL and LAND, and accessed to the IP network through the uplink FE/GE interface on the ISU;
z
When the subscriber logs off, ISU stops the accounting.
3.2.5 Broadband Test Service Flow The MA5100 supports built-in broadband test module (BTSB) to detect the state of the xDSL lines.
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IP/ATM
MA5100
MMX
BTSB
STM-1
FE/GE
LAND
ADSL
Figure 3-6 Broadband test service flow z
The test system (such as the NMS, carrier’s test system or the maintenance terminal) sends the test instruction to the MA5100 through the IP/ATM network;
z
In ATM-DSLAM networking, MMX receives the test instruction, then controls the ADSL board to grasp the line, and controls the BTSB to test the line, and reports the test data to the test system;
z
In IP-DSLAM application, LAND forwards the test instruction to MMX directly, which controls the BTSB and ADSL board to complete the test, and reports the data to the test system;
z
The test system analyzes and processes the data, and then displays the result.
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Chapter 4 Maintenance Management System
Chapter 4 Maintenance Management System The MA5100 supports two maintenance modes: the command line mode and the NMS mode. The following describes these two maintenance modes respectively.
4.1 Command Line Mode In the command line mode, the maintenance person can log in to the MA5100 through the serial port or telnet connection to maintain and configure the MA5100.
I. Serial port mode In the serial port mode, the maintenance person can log in to the maintenance serial port (CON) on the MMX through HyperTerminal, either locally or remotely. The local serial port mode indicates that the maintenance terminal is directly connected to the serial port on MMX of the MA5100. The remote serial port mode indicates that the maintenance terminal is connected to the serial port on the MMX of the MA5100 through a MODEM over a Dial-up connection across the PSTN network.
II. Telnet mode In the Telnet mode, the maintenance person can log in to the MA5100 through inband or outband management mode. The outband mode refers to that the maintenance terminal is connected to the maintenance network port (ETH) on the MMX of the MA5100 through IP network. The inband mode refers to that the maintenance terminal is connected to the FE/GE interface of the MA5100 through IP/ATM network, and the maintenance channel occupies a service channel. Figure 4-1 shows the networking for maintenance through the command line.
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MA5100
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ATM/IP Telnet
PSTN PC for remote serial port maintenance
PC for local serial port maintenance
Figure 4-1 Networking for maintenance through command line
4.2 NMS Workstation Mode The MA5100 provides network management interfaces to communicate with the NMS through Simple Network Management Protocol (SNMP). The iManager N2000 NMS is a management system of Huawei to manage and maintain fixed network devices and data communication devices in a centralized way. It provides complete management functions at network and network element (NE) levels. These functions include performance monitoring, traffic statistics, resource measurement, service batch-processing and fast locating of faults. It helps the carriers to reduce the operation and maintenance expense, enhance the efficiency and strengthen the competitiveness.
4.2.1 Hardware and Software Configuration of iManager N2000 I. Hardware z
PC: Intel PII 400/512M/10G/10M or 100M NIC/20-inch color monitor;
z
UNIX: Blade1000 or superior
In actual networking, the selected NM server varies with the scales of the networks.
II. Operating system z
Server: Windows 2000 Server/SQL Server 2000/Windows 2000 Professional/ MSDE Solaris 8/Sybase 12.0;
z
Client: Windows 2000 Professional
III. Database SQL Server 2000/Sybase 12.0 or later versions 4-2
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IV. iManager N2000 software The iManager N2000 manages fixed networks in a centralized way through its removable modular application programs. This software system contains platform software, NE management software, network management software, line test management package, and so on.
4.2.2 Characteristics of iManager N2000 The iManager N2000 provides substantial functions to manage the DSLAM devices.
I. Centralized management over different DSLAM devices The iManager N2000 can monitor and manage Huawei DSLAM series devices (including the MA5100, MA5103, MA5105, MA5300 and S3026V), routers, LAN Switches and other data communication devices in a centralized way, thus simplifying the network maintenance.
II. Centralized monitoring of deivces and traffic statistics The MA5100 provides diverse access means from broadband access to the Internet, to high-speed leased line interconnection. These access modes are suitable for general subscribers as well as large enterprises, schools, and banks. In this scenario, It becomes a trick how to effectively monitor the running of the network devices and get the traffic statistics at various ports. The iManager N2000 monitors network devices and collects traffics information in a centralized manner, so the maintenance person can trace the performance of a specific device, or devices in the whole network to get the required information in real time. With its performance analyzers, the iManager N2000 also supports analysis on the individual object in a specific time period, and analysis on multiple objects. All the results are output in tables, histograms and graphs.
III. Terminal management Simplification, maintenance-free, remote management, and auto-detection of rate and distance have become the trend to the development of ADSL terminals. The iManager N2000 supports centralized configuration, test and monitor ADSL terminals using RTU protocol.
IV. Broadband test management The iManager N2000, with a built-in broadband test management system, tests the xDSL lines by controlling the built-in broadband test module or outer test equipment of the MA5100. It also analyzes and processes such test data. The test results are not
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only the basis to provide xDSL service, but also used to locate the failure that occurs on the subscriber line or the central office side so as to save the troubleshooting time.
V. Batch processing on services With the popularization of ADSL services and increasing of group users, allocating service indexes and configuring service parameters become time-consuming. The iManager N2000 supports processing of ADSL services and PVCs in batches. It also provides service configuration templates to reduce the burden in inputting the configuration parameters. Such processing functions of the MA1500 reduce the time to deploy the service.
VI. Centralized backup and loading of device data The iManager N2000 provides the Data Center management software for centralized backup and loading of data of all the devices in the network. The maintenance person can use the Data Center software to make manual or timed loading and backup for all the network devices or a specific device. The centralized loading function also makes it possible to implement batch upgrading of software for the ADSL devices in the network segment.
VII. Safe solution to NMS and NMS database There are very strict requirements on the security for the NMS and NMS database. The iManager N2000 provides the NMS database backup tool to back up and restore entries in the NMS database. The tool supports manual and periodic backup and manual restoration. Remote monitor terminals are also available in the iManager N2000 to supervise the status of the status and the NMS database.
VIII. Complete fault management and fast fault locating The iManager N2000 supports the following functions: z
Real-time monitoring on alarms
z
Query of history alarms
z
Sorting and counting of alarms
z
Dumping of alarm information
z
Filtering of alarm information
z
E-mail notification of alarms
z
Analysis of alarm dependency
z
Trap check
The alarm correlation analysis enables the maintenance person to pinpoint the faults very quickly. The iManager N2000 also supports switching from alarm topological window to alarm window and from alarm information to faulty port. This simplifies the troubleshooting process. 4-4
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IX. Modular design and smooth upgrading The modular and pertinent design of the iManager N2000 software packages enables the carriers to make purchase of the management packages to their own needs. The iManager N2000 supports smooth upgrading to cope with the demand to manage new devices and new services in future.
X. Sophiscated security management The iManager N2000 offers management authority and operation authority to the devices. The management authority specifies whether the maintenance person can manage a specific device or not. If a device is beyond the management authority of a maintenance person, the node of such device is not available for the user in the topological view. The operation authority can be made more specific to reach the ports of a device. The operation authority is further classified into readable and writable authorities. This hierarchical management mode makes the iManager N2000 a right solution to managing small and medium-sized DSLAM networks, and to future NMS development as well.
XI. SNMP interface to access the third-party NMS The iManager N2000 provides the basic functions to manage DSLAM networks. It also provides the maintenance means to simplify the service flow and reduce the complexity of operations. Its centralized and hierarchical management functions ensure the security in the NM operation, and reduce the investment in NM systems. As for large-sized DSLAM networks, the iManager N2000 can provide hierarchical NM solutions together with iManager N2100 of Huawei.
4.2.3 Graphic User Interface of iManager N2000 The iManager N2000 provides friendly Graphic User Interfaces (GUIs) with unified style to make the network management operations simple and easy. It also provides powerful help system to assist the maintenance persons to learn and get familiar with the system. The iManager N2000 network topological view and the panel view of the MA5100 in the NMS are given below to further illustrate the operability of the iManager N2000.
I. Network topological view The iManager N2000 provides network topological views and submaps which are identical with actual network topology, as shown in Figure 4-2.
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Figure 4-2 Network topological view This view shows the connection of the nodes in the network and their running status. The running states of the devices are indicated by using the icons and colors in the topological view. Select [Legend] tab on the right of the view, and you can show the meaning of the icons and colors. Double-click a device node in the topological view to start the device panel for configuration.
II. MA5100 device view The MA5100 panels in the view are similar with the physical panels, which show clearly the configuration and status of the boards. See Figure 4-3.
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Figure 4-3 MA51000 panel view Substantial menu functions are available in the panel view, with which z
You can right-click the board or port on the panel view and then perform configuration, management and maintenance on the board or port through the shortcut menus; or
z
You can also configure, manage or maintain the system through the main menus on the top of the panel view.
4.2.4 iManager N2000 Networking The iManager N2000 supports networking with the MA5100 through inband, outband or hybrid modes.
I. Inband networking Inband networking is to manage a device through the service channel provided by the managed device. In this networking mode, NM messages are transferred through the service channel of the managed device. Inband networking is very flexible, and no additional device is needed. However, since the maintenance messages are transferred through the service channel of the managed device, maintenance operation from the iManager N2000 will be impossible when the managed device fails. Figure 4-4 shows an inband ATM networking of the iManager N2000 system.
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Chapter 4 Maintenance Management System NMC
IPoA Maintenance terminal ATM Network
MA5100
MA5100
Figure 4-4 IPoA inband networking of iManager N2000 In the above figure, the connections between the Network Management Center (NMC) and the ATM switch, and that between the MA5100 and the ATM switch are all in inband mode. The NMC manages and maintains the network devices through the service channels of the managed devices. As shown in Figure 4-5, NMS sets up PVC maintenance channels using the ADSL dialup access function provided by the MA5100, and implements management through inband connection. However, the reliability of this networking mode is poor, and is only suitable for remote browsing.
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NMS
ATU-R Subscriber terminal
PSTN
Miantenance terminal
ATU-R Web browser
MA5100 MA5100
Internet LAN
Subscriber terminal
ATM Network
Figure 4-5 ADSL inband networking of the iManager N2000 Inband networking is very flexible, and the above are only two typical modes. In actual application, NM networks can be flexibly constructed by combining multiple modes.
II. Outband networking Compared with the inband networking mode, the outband networking mode provides a more reliable service management channel. In this mode, the managed device can be located timely and monitored in real time even though the device fails. In this mode, an additional device is needed to provide the maintenance channel, which is independent of the service channels. Like the inband networking, the outband networking also supports multiple modes, and the MA5100 NMC supports networking with DDN/ISDN leased line, E1 line, router and LAN. Figure 4-6 shows an outband networking, in which the NMC connects with the node devices through different ways.
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Maintenance terminal Web browser
MA5100
Internet
LAN
ATM Network Router
Subscriber terminal
PSTN
MA5100
ATU-R
Subscriber terminal
Figure 4-6 Outband networking of the iManager N2000
III. Hybrid networking The most common networking of the iManager N2000 is the inband and outband hybrid networking, which is illustrated in Figure 4-7. NMC
Outband IP
ATM Network
Outband NM channel Inband NM channel
MA5100
Figure 4-7 Hybrid networking of iManager N2000
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In the above figure, the NMC is connected with the ATM switch through a LAN in outband mode, while the ATM switches and the MA5100 devices are connected in inband mode. The NMC can manage in a centralized way all the ATM switches and MA5100 devices in this networking.
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Chapter 5 Networking and Application
Chapter 5 Networking and Application Under centralized management by the Huawei iManager N2000 Integrated Network Management System, the MA5100 provides ADSL, SHDSL, and LAN access services. Figure 5-1 illustrates an integrated networking solution offered by the MA5100.
IP CORE iManager N2000
AAA SERVER
ATM/IP Convergence FE/GE OC-3c/FE/GE
STM-1/FE/GE
MA5100
MA5100 MA5100
STS-3c
STM-1
MA5103 ADSL
MA5100 STM-1
MA5103 E3
ADSL
SDH
SHDSL
ADSL LAN FE
SHDSL Subscriber
IMA
LAN FE Subscriber
MA5103
SHDSL
LAN
Commercial user ADSL
Commercial user
LAN ADSL
Subscriber
Commercial user Subscriber
Subscriber
Figure 5-1 MA5100 integrated service solution The MA5100 integrated service solution has these features: z
Provides abundant uplink interfaces connecting with the ATM/IP convergence networks to provide ATM-DSLAM and IP-DSLAM solutions. The ATM uplink interfaces include STM-4 optical interface, STM-1 optical/electrical interface, OC-3c, STS-3c and E3, while the IP uplink interfaces include the FE interface and GE interface;
z
Subtends with remote MA5100 devices through STM-4 optical interface, STM-1 optical/electrical interface, OC-3c, STS-3c, E3 and IMA interfaces. It supports star topology and tree topology in different networks, and is able to form a ring topology by using the existing transmission system (such as SDH);
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Provides broadband access for family users and commercial users through ADSL and SHDSL (ATM-based) interfaces, and coordinates with upper layer multicast devices to provide video multicast services;
z
Supports the hybrid networking application of ATM-DSLAM and IP-DSLAM;
z
Provides leased line interfaces such as LAN to satisfy the needs of business group users;
z
Provides centralized management under the iManager N2000 platform of Huawei.
The following introduces the networking solutions and applications of the MA5100.
5.1 Networking Solution The MA5100 has powerful networking functions as follows: z
Supports the IP and ATM uplinks at the same time to connect with different backbone networks;
z
Supports abundant uplink interfaces (STM-4 optical interface, STM-1 optical/electrical interface, OC-3c, STS-3c, E3, IMA, FE and GE) to be applied in complicated networks;
z
Provides master-slave and remote subtending connection and supports networking with SDH devices to enable flexible, convenient and inexpensive deployment of ADSL service, as well as future smooth expansion.
5.1.1 Master-slave Subtending The ADSL capacity of the MA5100 is able to be expanded by means of master-slave subtending, as shown in Figure 5-2.
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Master frame
0# Slave frame 1
A D S L
Slave frame 2
Slave frame 3
Slave frame 4
A D S L
A L L A A M M D A A I I M M S N N U U X X L D D
7# A D S L
A D S L
A D S L
A D S L
A S D M S X L
A D S L
A D S L
A D S L
A D S L
A D S L
A S D M S X L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A S D M S X L
A D S L
A D S L
A D S L
A D S L
A D S L
A S D M S X L
STM-1x4 LVDSx4 A D S L
15# A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
A D S L
7#
0#
A D S L
15#
7# A D S L
A S S D E E S P P L
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7#
0# A D S L
V D S L
A D S L
0# A D S L
S H L A
Chapter 5 Networking and Application
A D S L
15# A D S L
Figure 5-2 MA5100 master-slave subtending Master-slave subtending of the MA5100 has these features: z
The MA5100 master frame and slave frames are connected in a star topology, so that services on the slave frames shall not interfere with each other;
z
The subtending interface board SEPA/SEPL in the master frame supports hot-backup to ensure reliability and safety;
z
The networking of master and slave frames is flexible, as shown in Table 5-1.
Table 5-1 Master-slave networking Subtending mode
Interface
Master frame
Maximum frames
Slave frame
SEPL/SMXL
STM-1 optical/electrical interfaces
MA5100
MA5100, MA5103
8
SEPA/SMXB
LVDS interfaces
MA5100
MA5100
8
5.1.2 Remote Subtending Through different interface subboards attached on the AIUA, the MA5100 can provide different ATM interfaces for subtending connection with remote MA5100 devices. The system also provides the IMUB board for subtending connection with remote IMA devices (such as MA5105).
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This remote subtending connection saves the resources of fiber and the ATM port resource on the upper layer devices, and extends the reach of broadband network. Figure 5-3 shows the remote subtending of the MA5100.
IP/ATM CORE
STM-1/FE MA5100
MA5100
MA5100
STM-1/STM-4
OC-3c/FE/GE STM-1 STS-3c
E3
STM-1
OC-3c
MA5100
MA5103 IMA
MA5103 E3 SDH
E3
MA5100
MA5103 IMA
MA5103
MA5103
MA5103
Figure 5-3 MA5100 remote subtending
5.1.3 IP-DSLAM Networking The MA5100 IP-DSLAM application enables the xDSL subscribers to access the IP network directly and supports multicast services. Figure 5-4 shows the IP-DSLAM networking of the MA5100.
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IP Core
GE GE/FE BAS GE/FE
GE/FE
MA5100
Built-in ISU MA5100
MA5100
MA5103
MA5105
ADSL
ADSL
Figure 5-4 MA5100 IP-DSLAM networking In IP-DSLAM networking, the MA5100 provides the following two applications:
I. External BAS In this mode, the MA5100 connects with the upper-layer distributed external BAS (also called B-RAS) device (such as the MA5200 series of Huawei), or centralized BAS device (such as the ISN8850 of Huawei). The xDSL subscribers are connected to the IP network through the IP uplink port on the MA5100, and the connection with the BAS is based on PPPoE or other modes, for the purpose of subscriber authentication, authorization and accounting. Features of a centralized BAS network: z
DSLAM access device is connected to the BAS through special convergence device;
z
The BAS is suitable for initial stages of DSLAM deployment when the subscribers are scattered and the capacity is small;
z
The BAS device is required to provide large capacity and powerful forwarding capability;
z
Subject to single point failure and flow bottleneck, difficult in VLAN planning and configuration, the BAS is inapplicable to large DSLAM deployment, causing layer 2 network too large.
Features of a distributed BAS network: z
BAS is the convergence device for DSLAM;
z
BAS is applicable to large deployment of DSLAM service;
z
The BAS device is required to provide abundant interfaces and powerful convergence function; 5-5
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With simple network structure, it saves investment by the carriers.
Compared with the centralized BAS network, the distributed BAS network solves the problem of single point failure and flow bottleneck.
II. Built-in ISU The MA5100 provides a built-in ISU board for subscriber authentication, management and accounting. This board also offers subscribers with accesses to IP network directly.
5.1.4 ATM/IP-DSLAM Hybrid Networking The MA5100 supports ATM and IP uplinks at the same time. When using the ATM uplink ports, the MA5100 supports broadband access, leased line access, LAN access, and multicast services. When using IP uplink ports, the MA5100 supports broadband access as well as video multicasting (in coordination with upper-layer multicast router or B-RAS device). Figure 5-5 shows the ATM/IP-DSLAM networking of the MA5100.
IP backbone
ATM backbone
STM-1
FE/GE MA5100
SHDSL service
ADSL service
LAN service
Figure 5-5 ATM/IP-DSLAM hybrid networking of the MA5100 In the ATM/IP-DSLAM hybrid networking, the MA5100 can transmit the traffic through both the ATM network and the IP network at the same time according to the service types. This helps to relieve the load on a specific network.
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5.2 Service Application 5.2.1 High Speed Internet Access ADSL provides large bandwidth with asymmetric upstream and downstream rates. The maximum upstream rate reaches 896kbit/s, while the maximum downstream rate reaches 8Mbit/s. ADSL makes good use of existing telephone lines for transmission over a distance as far as five kilometers with low deployment cost and a high deployment speed. So, it can satisfy the demands of subscribers in places beyond reach of fibers. ADSL2+ and ADSL have the same networking mode, but ADSL2+ features in higher rates (max. upstream rate: 1.2Mbit/s, max. downstream rate: 24Mbit/s), and longer transmission distance (6 km). Figure 5-6 shows the MA5100 networking in high speed Internet access.
Internet
Router
FE/GE
STM-1 MA5100
ADSL
ISN8850
ADSL2+
MA5200
ADSL
MA5103
ADSL2+
Figure 5-6 High speed Internet access of the MA5100 In the above figure, the connection between the subscriber and the BAS (ISN8850 or MA5200) is based on PPPoE or other protocols. The BAS is responsible for subscriber authentication and accounting.
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5.2.2 Leased Line Application As one of the most popular DSLAM choices, the MA5100 provides a variety of leased line access modes, apart from providing broadband Internet access, so as to enhance the usage of the device and bring more revenue to the carrier. The MA5100 supports G.SHDSL leased line access and LAN interconnection.
I. SHDSL leased line application The SHDSL interface on the MA5100 provides high speed leased line access with symmetric rates for enterprises or commercial users over 1/2 twisted pair cables. The networking of SHDSL leased line access is similar to that of ADSL laccess, as shown in Figure 5-7.
ATM MAN
IP MAN
ATM Switch
BAS
STM-1
FE/GE FE/GE
STM-1
MA5103
SHDSL
Enterprise/SOHO
MA5100
SHDSL
SHDSL
Goverment/School
Bank/Stock market
MA5100
SHDSL
Office builing
Figure 5-7 SHDSL leased line application of the MA5100
II. LAN interconnection The MA5100 provides carrier-class LAN interconnection service for governments, enterprises and commercial institutions (such as banks) to link their branch offices with the headquarters. Apart from the interconnection, this solution also supports applications such as broadband Internet access and video conferencing. The MA5100, together with other Huawei devices like the Radium8750 and ISN8850, implements service distribution control, user management, network security and authentication/accounting functions, and makes the Internet operable and manageable.
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Figure 5-8 shows the MA5100 LAN interconnection networking.
ATM/IP
Radium8750
Radium8750
MA5100
MA5100
Headquarters
Branch office
Branch office
MA5100
Branch office
Figure 5-8 LAN interconnection application of the MA5100
5.2.3 Multicast Service Application Multicast applications are becoming new service demands as streaming data warehouse and video frequency appear in the IP network. ADSL/SHDSL, the mainstream broadband access technologies are mainly used to provide high speed Internet access and ADSL/SHDSL leased line services. Multicast services based on ADSL/SHDSL are becoming a new profitable market for the carriers. Multicast services are mostly used for streaming multi-media, distant learning, video conferencing, video multicasting, Internet games, Interdisciplinary Data Collection (IDC) and point-to-multipoint data transfer applications. The MA5100 supports two multicast networking modes: IP DSLAM and ATM DSLAM, as described below.
I. IP DSLAM multicast service application Figure 5-9 shows the IP-DSLAM multicast networking of the MA5100.
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Internet Multicast server FE/GE
Multicast router
FE/GE
MA5100
SHDSL
MA5103
ADSL
ADSL
SHDSL
Figure 5-9 IP DSLAM multicast service application of the MA5100 The MA5100 connects with the IP MAN through its IP uplink interfaces (FE/GE), and coordinates with the upper layer multicasting router or BAS to implement the multicast service. In this application, the MA5100 is a Layer 2 device to implement IGMP Snooping function.
II. ATM-DSLAM multicast service application In initial deployment of the multicast service, support from the broadband convergence network or the backbone network may be insufficient, or the network devices may not meet the requirement to support multicast protocols. In this case, the DSLAM devices are required to connect with the video service server directly, so as to deploy the multicast service independently. ATM-DSLAM multicast of the MA5100 supports this networking mode, as shown in Figure 5-10.
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ATM Multicast server STM-1
STM-1
MA5100
SHDSL
MA5103
ADSL
ADSL
SHDSL
Figure 5-10 ATM-DSLAM multicast service application of the MA5100 To meet the requirement to connect the multicast server directly, in the IGMP Snooping process of the MA5100, the multicast querying mechanism is introduced. This mechanism is based to send query packets to multicast subscribers at regular intervals, and to maintain the multicast group according to the response packet.
5.2.4 Broadband Test Service This function aims to test the state of xDSL lines, so as to provide reference for whether or not to activate a subscriber line, or locate the failure that occurs at the subscriber side or central office side. The MA5100 has a built-in BTSB board for the test purpose, and the networking is shown below.
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ATM/IP
STM-1/FE MA5100
Carrier’s test system
Maintenance terminal ADSL
ADSL
Figure 5-11 Networking for broadband test of the MA5100 The maintenance person can use the built-in BTSB to test the states of ADSL lines in the following ways: z
log in to the MA5100 through the maintenance serial port (CON) or network port (ETH), and then execute the broadband test command;
z
use the test management subsystem of the Huawei iManager N2000 NMS to control the BTSB to test the states of the ADSL lines;
z
connect the carrier’s test system through the NMS, so that the carrier’s test system can control the BTSB to test the states of the ADSL lines.
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Chapter 6 Technical Specifications
Chapter 6 Technical Specifications 6.1 System Specifications Table 6-1 Hardware dimensions Item MA5100 cabinet
Specification 600mm ×600mm ×1800mm 600mm ×600mm ×2200mm
MA5100 frame
436.00mm ×420.00mm ×444.50mm
MA5103 chassis
436.00mm ×420.00mm ×222.25mm
Table 6-2 Operating voltage Item
Specification
DC power
-40V~ -57V
AC power
220V±20%, 110V±20%
Table 6-3 Power consumption of the boards Board
Power consumption (W)
ADCE
44 (1.40W/Port)
ADLE
53 (1.65W/Port)
ADLG
53 (1.65W/Port)
ADLH
53 (1.65W/Port)
ADLI
53 (1.65W/Port)
ADLJ
53 (1.65W/Port)
AIUA
27
BTSB
40
IMUB
30
ISUA
30
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Chapter 6 Technical Specifications
Board
Power consumption (W) 17 (1×1000BASE-LX/SX subboard) 25 (8×100BASE–FX subboard)
LAND
24 (4×100BASE–FX subboard) 22 (8×10BASE-T/100BASE–TX subboard) 3 (1×100BASE–FX subboard) 6 (2×100BASE–FX subboard)
MMX
27
SEPA
10
SEPL
13
SHLA
36
SMXB
10
SMXL
13
Table 6-4 Power consumption of the ADSL chipset Board
Power consumption (W)
ADLE
1.2W/Port
ADLG
1.2W/Port
ADLH
1.2W/Port
ADLI
1.2W/Port
Table 6-5 Power consumption of the ADSL2+ chipset Board
Power consumption (W)
ADCE
1.1W/Port
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Table 6-6 System capacity Item
MA5100
MA5103
Cell Bus
2.4Gbps
2.4Gbps
Max. number of ADSL subscribers in one frame
448
192
Max. number of SHDSL (ATM mode) subscribers in one frame
448
192
Max. number of slave frames in master-slave subtending
8
Null
Max. number of ATM PVCs
8k
Max. number of VLANs
4k
Max. number of MAC addresses
12k
Table 6-7 Interfaces capacities ATM uplink and remote subtending interfaces STM-4 optical interface
One 622M
STM-1 optical/electrical interface
One or two 155M
OC-3c/STS-3c interface
One or two 155M
E3 electric interface
One or two 34M
IMA interface
8/16×E1s IP uplink interfaces 8×10BASE-T/100BASE-TX
FE
1/2/4/8×100BASE-FX
GE
1×1000BASE-SX/LX Service interfaces
ADSL interface board
32 interfaces
SHDSL (ATM mode) interface board
32 interfaces
LAN interface board
8×100 BASE-TX, 1/2/4/8×100 BASE-FX
Master-slave subtending interface
SEPL
4×STM-1 optical/electrical interfaces
SEPA
4×LVDS interfaces
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Table 6-8 Reliability indices Configuration
Failure Rate (FITs)
MTBF(hrs)
MTBF(yrs)
Availability
MA5100 Single frame ADSL access
7727
129416.33
14.77
0.9999961
Large capacity ADSL access
9757
102490.52
11.70
0.9999951
IP-DSLAM
9818
101853.74
11.63
0.9999951
Hybrid
93658
10677.14
1.22
0.9999532
ADSL access
35474
28189.66
3.22
0.9999823
Hybrid
93658
10677.14
1.22
0.9999532
MA5103
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Chapter 6 Technical Specifications
6.2 Interface Specifications Table 6-9 Specifications of STM-1 optical interface Item
Description
Transmission rate
155.520Mbit/s
Connector type
SC/PC (square head)
Fiber type
G.652
Category code
I-1
S-1.1
L-1.1
Wavelength (nm)
1310
1310
1310
Wavelength range (nm)
1260-1360
1261-1360
1263-1360
Interface mode
Multi-mode
Single mode
Single mode
Max. transmission distance (km)
2
15
40
Optical resource type
MLM
MLM
MLM
Max. average transmit power
-8
-8
0
Min. average transmit power
-15
-15
-5
Min. extinction ratio (dB)
8.2
8.2
10
Min. receiving sensitivity (dBm)
-23
-28
-34
Min. receiving overload power (dBm)
-8
-8
-10
Table 6-10 Specifications of STM-1 electrical interface Item
Description
Transmission rate
155.52 Mbit/s
Bit rate tolerance
±3110.4 bit/s
Interface code
CMI
Echo loss
≥ 15 dB(8~240MHz)
Input/output impedance
75 Ω
Transmission distance
≤ 70 m(75 Ω coaxial)
Over-voltage protection
Be able to sustain ten standard lightning surge of 20V (power up duration 1.2µs, interval 50µs, 5 positive and 5 negative).
Acceptable input attenuation
0 ~ 12.7 dB (78Hz)
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Table 6-11 Specifications of STM-4 optical interface Item
Description
Transmission rate (Mbit/s)
622.080
Connector type
SC/PC (square head)
Fiber type
G.652
Category code
I-4
S-4.1
L-4.1
Wavelength (nm)
1310
1310
1310
Wavelength range (nm)
1261~1360
1293~1334/12
1300~1325/12
74~1356
96~1300
Interface mode
Multi-mode
Single mode
Single mode
Max. transmission distance (km)
2
15
40
Optical resource type
MLM
MLM
MLM
Max. average transmit power
-8
-8
2
Min. average transmit power
-15
-15
-3
Min. extinction ratio (Db)
8.2
8.2
10
Min. receiving sensitivity (dBm)
-23
-28
-28
Min. receiver overload power (dBm)
-8
-8
-8
Table 6-12 Specifications of OC-3c optical interface Item
Description
Transmission distance
155.52 Mbit/s
Connector type
SC/PC (square head), FC/PC (round head)
Category code
IR-1
Wavelength
1310 nm
Wavelength range
1260 nm~1360 nm
Optical source type
MLM
Average transmit power
-8~ -15 dBm
Min. extinction ratio
8.2 dB
Receiving sensitivity
-8 dBm
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Table 6-13 Specifications of STS-3c electrical interface Item
Description
Transmission distance
155.52 Mbit/s
Bit rate tolerance
±20 ppm
Interface code
CMI
Echo loss
ƒ15 dB (8~240MHz)
Input /output impedance
75 Ω
Table 6-14 Specifications of E3 electrical interface Item
Description
Transmission distance
34.368 Mbit/s
Line code
HDB3
Line jitter
ITU-T G.823 and G.824
Max. transmission distance
1200 feet
Input/output impedance
75 Ω
Table 6-15 ADSL interface specifications Item
Description
Upstream bandwidth
26 kHz~138 kHz
Max. upstream transmission distance
896 kbit/s
Downstream bandwidth
138 kHz~1.104 MHz
Max. transmission distance
8160 kbit/s
Max. transmission distance
5km
Line code
DMT
Table 6-16 ADSL2+ interface specifications Item
Description
Upstream bandwidth
26kHz~138kHz
Max. upstream transmission rate
1.2Mbit/s
Downstream bandwidth
138kHz~2.208MHz
Max. transmission rate
24Mkbit/s
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Item
Chapter 6 Technical Specifications
Description
Max. transmission distance
6km
Line code
DMT
Table 6-17 SHDSL interface specifications Item
Description One- pair twisted cables
Two-pair twisted cables
Transmission rate
192kbit/s~2312kbit/s
384kbit/s~4608kbit/s
Rate adjustment step
64kbit/s
128kbit/s
Transmission distance
3~6 km
Line code
TC-PAM
Frame protocol
E1, PCM, ATM, ISDN
Transmission mode
G.991.2 Annex A, G.991.2 Annex B
Table 6-18 100Base-TX interface specifications Item
Description
Transmission rate
10 Mbit/s and 100 Mbit/s
Interface type
RJ-45(TPI)
Transmission distance
100 m
Interface mode
UTP/STP
Regulatory compliance
IEEE 802.3u
Cable type
Category-5 twisted pair
Differential mode output voltage
STP mode
1165 mV~1285 mV
UTP mode
950 mV~1050 mV
Duty ration extortion
Less than ±0.5 ns
Output jitter
Less than 0.5 ns
Impedance return loss
Common mode suppression
2~30 MHz
>16 dB
30~60 MHz
>16 - 20log(f/30) dB (f-frequency, in units of MHz)
60~80 MHz
>10 dB
The input end can sustain the sine common mode interference of 0~125 MHz, 1.0 Vpp.
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Table 6-19 100Base-FX interface specifications Item
Description
Transmission rate
100 Mbit/s
Interface type
LC
Transmission distance
15 km
Optical power output
(-15~-8) dBm
Central wavelength
1261 nm~1360 nm
Spectral range
4 nm
Receiving sensitivity
8.2 dB
Cable type
LC
Table 6-20 1000Base-Lx interface specifications Item
Description
Transmission rate
1000 Mbit/s
Interface type
LC
Transmission distance
10 km
Average transmit power
(-11~ -3) dBm
Central wavelength
1270 nm~1335 nm
Extinction ratio
> 8.2 dB
Power up duration
