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Configuring Default Values for H.248 Base Root Properties

You can configure default values for properties defined in the H.248 base root package. The VPG uses these values unless the PGC overrides them with a PGCP command. In general we recommend you use the values that are configured on the router by default.

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.

Step-by-Step Procedure

To configure H.248 timers for the PGCP connection between the VPG and the PGC:

  1. Access the configuration of the H.248 base root properties.
    [edit services pgcp]
    user@host#edit gateway vpg-1 h248-properties base-root
  2. Set the default value for the number of milliseconds for the PGC to wait for a response to transactions from the VPG.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set normal-mg-execution-time default 500
  3. Set the default value for the number of milliseconds for the PGC to wait for a pending response from the VPG if a transaction cannot be completed.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set mg-provisional-response-timer-value default 2000
  4. Set the default value for the number of transaction pending messages that the PGC can receive from the VPG.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set mg-originated-pending-limit default 4
  5. Set the default value for the number of milliseconds for the VPG to wait for a response to transactions from the PGC.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set normal-mgc-execution-time default 500
  6. Set the default value for the number of milliseconds for the VPG to wait for a pending response from the PGC if a transaction cannot be completed.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set mgc-provisional-response-timer-value default 4000
  7. Set the default value for the number of transaction pending messages that the VPG can receive from the PGC.
    [edit services pgcp gateway vpg-1 h248-properties base-root]
    user@host#set mgc-originated-pending-limit default 4

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