What seems to be missing from the manuals is that how can I map/direct the traffic (CoS & DSCP values) to the priority queue?
A: By default, the priority queue is queue 2, and 10 percent of the bandwidth is allocated to it.
?For queue-id, the range is 1 to 2.
Map DSCP or CoS values to an ingress queue and to a threshold ID.
By default, DSCP values 0-39 and 48-63 are mapped to queue 1 and threshold 1. DSCP values 40-47 are mapped to queue 2 and threshold 1.
By default, CoS values 0-4, 6, and 7 are mapped to queue 1 and threshold 1. CoS value 5 is mapped to queue 2 and threshold 1.
?For queue-id, the range is 1 to 2.
?For threshold-id, the range is 1 to 3. The drop-threshold percentage for threshold 3 is predefined. It is set to the queue-full state.
?For dscp1...dscp8, enter up to eight values, and separate each value with a space. The range is 0 to 63.
?For cos1...cos8, enter up to eight values, and separate each value with a space. The range is 0 to 7.
What above is saying is queue 2 is priority queue, you can use the CoS/DSCP mapping to queue to move certain CoS?DSCP to either queue 1 or queue 2.
I can map traffic to two other WRR (SRR) queues with command: "mls qos srr-queue input cos-map queue queue-id threshold threshold-id cos1...cos8", but there is nothing about the priority queue.
So is the CoS/DSCP values for the priority queue fixed or how/what traffic is directed to it?
A; See above.
For more info:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat2960/12225see/scg/swqos.htm#wp1161845
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