From: gladston@br.ibm.com
Date: Wed Sep 15 2004 - 09:12:40 GMT-3
This seems to be related to the question:
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quoted
With RTP prioritization and PQ/WFQ, traffic that matches a specified User Datagram Protocol (UDP)/RTP port range is considered high priority and allocated to the PQ. With Low Latency Queueing for Frame Relay, you set up classes of traffic according to protocol, interface, or access lists, and then define policy maps to establish how the classes are handled in the priority queue and weighted fair queues.
I understand it is saying that, while RTP Priorization just allow you to match a UDP range, LLQ is more flexible. It is your decision to use one or another, though. LLQ allows you to match using RTP Priorization or other facilities.
r6(config)#class-map Voice
r6(config-cmap)#match ip rtp ?
<2000-65535> Lower bound of UDP destination port
You can use both. For example, use "match ip rtp..." to match a UDP range and "match access-group name Control-1720" to match control traffic. All these under the same class, so you match voice and control packets, which will go to the priority queue.
Makes sense?
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