Ericsson UMTS

Ericsson Element Management

Element Manager Application Subsystem As previously mentioned EMAS is a java-based tool used to carry out element management of a number of different Node areas. It is composed of a number of different views including:
Radio View
ATM View
IP View
Equipment View
Signalling View The new Element Manager tool (EM) includes a number of new views, including licensing and transport stack relations

EMAS Radio View

Radio View gives information on the various cells, channels and cell relations in the node. It also shows Iub links for the RNC

Right pane shows information, (channels and cell relations in this case)

EMAS ATM View

ATM View gives an overview of all ATM transport resources in the node, including ports, VCs, VPs, AAL termination points, IMA groups Right pane shows information, (ATM ports, VCs, VPs ect in this case)

EMAS Equipment View

Equipment view gives an overview of equipment in the node, including boards, subracks, fan units, power, and external equipment for Node-Bs Right pane shows information, (Boards and their slots in this case)

New Element Manager (EM) EM is a new tool which combines and adds to the functionality of the old EMAS and Object Explorer tools. It is:
Model-based, and as such assumes some knowledge of the MOM
Is launched from a special installation package provided by Ericsson. Can also be launched from OSS-RC 6.2 and newer
Allows for user-defined, and some pre-defined views. Folders to hold and create these views are automatically created on the users PC with the installation of the launcher software
Nodes that are UTRAN P7 or newer, require the use of new EM

Launching New Element Manager New software package allows for easy launch:

Ip address of the node EM is to be launched for

EM Main Window View menu also includes user-defined views

MOM based modelling is used

Tab titles include:
Table (attribute information)
MO Properties (each MO’s attributes)
Description (describing each object)

Launching ALEX From EM Pressing F1 launches CPI

in the “ManagedElementData” Managed Object the path to CPI used is set, using the “documentServerAddress” attribute

EM Licensing View Graphically organises the licenses in the node

License title

Right hand pane gives further information on each license, including the service it enables

EM ATM Relations View New view showing the ATM or IP transport stack Can also be launched for IP

Stack shows how the lower layer ATM MOs relate (including phy ports) Useful for configuration troubleshooting as we can view faulty parts of the transport stack at a glance

User Defined Views in EM These are saved on the users PC in the form of XML files

Folder automatically created with EM SW download

View is stored on PC, and so can be used with different nodes

Sample User-Defined View The view is called “Basic_view”

The top level MO shown is ”Managed Element”

Altogether two layers of MOs are shown

No attributes shown in right hand pane

XML File for This View

The top level MO selected is ”Managed Element”

A File for a More Detailed XML View

The top level MO selected is ”Subrack”

Specific Attributes will be viewed

Three layers of MOs to be displayed

Command Line Interface Tool As mentioned before the CLI tool can be used to access the node resources, such as the filing system
We access the tool by opening a terminal window from the OSS desktop (or alternatively via the Node Status Analyser tool)
Telnet into the node from the terminal window using the “telnet” command followed by the node IP address
Once in the node standard commands apply, including: “cd” to change directory and “ls” to list contents
More specific commands include “lhsh” to jump to a board, and “vii” to get information on the status of the LEDs on the board. (See handout with useful CLI commands for usage)

Node Command Line Interface Tool NCLI is a MOM-based tool, and is accessed from the regular CLI
After telnetting in launch NCLI by keying in “ncli”
Restricted number of similtaneous sessions one any one node (2-5)
Treats the node MOM as a UNIX filing system, allows for jumping between MOs
Actions may be performed only on the MO the user is on
Caution is advised as there are no safeguards against hazardous actions, such as locking the O&M board

“man” gives a list of commands

Advanced MO Scripting (AMOS) Tool CLI-based tool that allows for MOM-based text support
Similar to the Ericsson MOshell tool
Client not located on node, user must ensure to upload MIB from node with each use
More flexible than NCLI as it allows for filtermatching of MO names, and displays all MO information (attributes)
Tasks include: “get” to get values “set” to set attribute value, “create” to create an MO and “delete” to delete one
Commands starting with an “l” and “r” match by local and relative distingushed name

Chapter Concludes