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Combination of FR PVC Bundles and FR Low Latency Queueing

I want to know whether the usage of Frame Relay PVC Bundles and Low Latency Queueing for Frame Relay is mutually exclusive?

My provider offers me a bundle of Frame Relay VCs with different class of services and I need to know how to use them effectively.

PIPQ seems not to be the right choice for queueing, because it causes starvation of the lower priority classes by the high priority classes.

So in fact I am considering to use Frame Relay per VC LLQ, but have not found any hint about the combined functionality of Frame Relay LLQ and Frame Relay PVC Bundles.

Joachim

  • Other Network Infrastructure Subjects
1 REPLY
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Re: Combination of FR PVC Bundles and FR Low Latency Queueing

You can use LLQ along with Frame-relay at the VC level. The service policy defining LLQ can be attached to the DLCI under the map-lass along with the shaping commands for that PVC. PIPQ prioritizes one PVC over the other at the interface level, but I think LLQ when used this way operates within the VC on which it is configured. These docs have more information :

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt2/qcfconmg.htm#1003189

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt2/qcfwfq.htm

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