Chapter 11 Quality Monitoring and Statistics Gathering

Provisioned Inactivity Timer

Related Command

The h248-media-alert-eventcommand is used to enable or disable the Middlebox Pinhole Timer Expired event when the DBE detects media loss.

Provisioned Inactivity Timer

The DBE can be configured with a default value for the H.248 connection’s inactivity timer value (the it and ito properties). This default value is used if the media gateway controller (MGC) does not request that the DBE runs an inactivity timer.

The advantage is that the DBE can detect media gateway controller (MGC) failure whether or not the MGC has subscribed to the inactivity timer event.

The system default is that no provisioned inactivity timer is configured. The provisioned timer is started when a successful response is received to the media gateway (MG) initial ServiceChange request to the MGC.

The MGC subscription timer duration can override the provisioned timer duration value if the MGC subscribes to the inactivity timer with a different timer duration than the provisioned timer duration. However, the subscribed timer value is replaced by the provisioned timer value if the MGC cancels its subscription or the association fails.

Related Command

The h248-inactivity-durationcommand configures the duration of the inactivity timer. The provisioned duration time is zero unless the user sets the duration parameter. It returns to zero if the user configures the no h248-inactivity-durationcommand.

ServiceChange Notification for Interface Status Change

This feature enables the media gateway (MG) to generate a ServiceChange H.248 notification to the media gateway controller (MGC) containing the Termination ID of the physical interface on the data border element (DBE) when the interface experiences status changes. This feature is described in the “ServiceChange Notification for Interface Status Change” section on page 7-11.

 

 

 

Cisco IOS XE Integrated Session Border Controller Configuration Guide for the Cisco ASR 1000 Series Aggregation Services Routers

 

 

 

 

11-6

 

OL-15421-01

 

 

 

 

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Cisco Systems ASR 1000 manual Provisioned Inactivity Timer, Related Command, 11-6