20 Fault management | Nortel Networks Confidential |
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whenever a failure condition occurs on the Active SIP Application Module.
•Idle Session Detection
—enables the RTP Media Portal to detect and recover media resources associated with idle media sessions. This basic capability enables the system to maintain capacity and performance in the wake of a SIP Application Module failure that causes the isolation of active media sessions.
•Media Survivability
—enables the RTP Media Portal to allow media sessions to survive (through to session completion) in the absence of control signaling from the SIP Application Module. This capability enables the system to permit media sessions to continue through to completion in the wake of SIP Application Module failure.
•Shared Resource
—enables the distribution of RTP Media Portal resources to multiple SIP Application Modules. The strategy of distributing media sessions over multiple RTP Media Portals strengthens the network's ability to continue processing sessions in the event of a failure condition. Failures would result in diminished capacity across the entire network, but not necessarily a service outage, since there are many other RTP Media Portals available to many SIP Application Modules.
Fault management procedures
Alarm surveillance
From the System Management Console
1From the System Management Console, under the RTP Portal Components folder, highlight the appropriate RTP Media Portal.
2The main screen appears to the right and describes RTP Media Portal component details such as general details, CPU usage, Disk Usage, I/O Usage, and Alarms.
3Below the status details, click the alarm tab to view the service component and what severity of an alarm is raised against it. For alarm severity classification, refer to the MCP System Management Console Basics.
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