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
