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Configuring Default Values for H.248 Properties

You can configure default values for various H.248 properties. The VPG uses these values unless the PGC overrides them with a PGCP command. You can set default values for properties defined in the following packages:

The base root package is defined in annex E.2 of the Gateway control protocol v3, ITU-T Recommendation H.248.1, September 2005. The properties in this package mostly affect the timers used when the VPG and PGC send and receive provisional responses to H.248 commands.
The Differentiated Services (Diffserv) package is defined in annex A of the Gate control protocol, ETSI technical specification TS 102 333 v1.2.0, January 2008. You can configure a default Differentiated Services code point (DSCP) value that the VPG uses for outgoing traffic when the DSCP value is not already defined by the PGC. All eight bits are exposed, but only the six leading bits are used by the packet.
The segmentation package is defined in annex E.14 of the Gateway control protocol v3, ITU-T Recommendation H.248.1, September 2005. The properties in this package affect the limits used when long H.248 replies are segmented into several H.248 messages.
The hanging termination detection package is defined in Gateway control protocol: Hanging Termination Detection package H.248.36, September 2005.
The inactivity timer package is defined in Gateway control protocol: Inactivity timer package H.248.14, March 2002.
The Notification Behavior package is defined in annex E.15 of the Gateway control protocol v3, ITU T Recommendation H.248.1, September 2005.

To configure default values for H.248 properties, include the h248-properties statement at the [edit services pgcp gateway gateway-name] hierarchy level:



[edit services pgcp gateway gateway-name]

h248-properties {



application-data-inactivity-detection {

ip-flow-stop-detection (regulated-notify
| immediate-notify);
}





base-root {

mg-originated-pending-limit default number-of-pendings-received;

mg-provisional-response-timer-value default milliseconds;

mgc-originated-pending-limit default number-of-pendings-received;

mgc-provisional-response-timer-value default milliseconds;

normal-mg-execution-time default milliseconds;

normal-mgc-execution-time default milliseconds;
}





diffserv {



dscp {
default (dscp-value | alias | do-not-change);
}


}





event-timestamp-notification {

request-timestamp (requested
| suppressed | autonomous);
{





hanging-termination-detection {

timerx seconds;
}





inactivity-timer {



inactivity-timeout {

detect;



maximum-inactivity-time {
default 10-millisecond-units;
}


}


}





notification-behavior {

notification-regulation default (once | 0 - 100);
}





segmentation {

mg-maximum-pdu-size default bytes;

mg-segmentation-timer default milliseconds;

mgc-maximum-pdu-size default bytes;

mgc-segmentation-timer default milliseconds;
}





traffic-management {



peak-data-rate {
default bytes-per-second;


rtcp {
fixed-value bytes-per-second;
percentage  percentage;
}


}





sustained-data-rate {
default bytes-per-second;


rtcp {
fixed-value bytes-per-second;
percentage  percentage;
}


}





max-burst-size  {
default bytes;


rtcp {
fixed-value bytes;
percentage percentage;
}


}


}


}

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