Frame Relay Voice Adaptive Shaping

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Feb 13th, 2009
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In the 12.4 mainline documentation, the configuration example includes the command in the serial interface:

frame-relay fragmentation voice-adaptive deactivation 50

and this command in the policy map attached to the frame-relay map-class:

shape fr-voice-adapt deactivation 50

Both commands have exactly the same description as to their function. Are both required? It's really not clear.

Any help appreciated.

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Edison Ortiz Sat, 02/14/2009 - 11:30
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Are both required?


When configuring shaping or any QoS features in Frame-Relay, you have 2 choices:

1) You can configure a map-class frame-relay for per PVC QoS services


2) You can configure MQC which is the class-map and policy-map combination. This option applied to an interface will affect all PVCs in the interface.

Now, you can also use MQC and apply the service policy to a map-class. If you configure QoS features in the MQC that are similar to the ones from the map-class - like the example above - you don't need to repeat the same.





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