Configuring H.248 Notification Behavior to Prevent Excessive Media Inactivity Notifications
By properly setting H.248 notification behavior properties, you can prevent a BGF from sending an avalanche of media inactivity notifications that can flood the gateway controller and adversely affect the processing of H.248 transactions. You can also enable recording of all media inactivity events for future retrieval.
The H.248 Notification Behavior package is defined in annex E.15 of the Gateway control protocol v.3, ITU-T Recommendation H.248.1, September, 2005.
To configure default values for H.248 Notification Behavior properties:
- Access the configuration of H.248 application
data inactivity detection. [edit services pgcp gateway bgf-1]user@host# edit h248-properties application-data-inactivity-detection
- Turn notification on.[edit services pgcp gateway bgf-1 h248-properties application-data-inactivity-detection]user@host# set ip-flow-stop-detection regulated-notify
- Access the configuration of H.248 notification
behavior.[edit services pgcp gateway bgf-1]user@host# edit h248-properties notification-behavior
- Configure the default frequency of notification
messages for the media inactivity event. The gateway controller can
override this default by requesting a different frequency. If you
specify once, only one notification is
sent and the gateway controller cannot retrieve the notification by
use of an audit for the root termination.[edit services pgcp gateway bgf-1 h248-properties notification-behavior]user@host# set notification-regulation default 10
- Enable retrieval of event notifications
by the gateway controller at the [edit services pgcp gateway gateway-name h248-options] level.[edit services pgcp gateway bgf-1 h248-properties notification-behavior]user@host# up 2[edit services pgcp gateway bgf-1]user@host# edit h248-options[edit services pgcp gateway bgf-1 h248-options]user@host# set audit-observed-events-returns
- Enable retrieval of time stamps of recorded
notifications by the gateway controller.[edit services pgcp gateway bgf-1 h248-options]user@host# edit services pgcp gateway bgf-1 h248-properties[edit services pgcp gateway bgf-1 h248-properties]user@host# set event-timestamp-notification request-timestamp requested
