QoS Policing on Catalyst 6500 Switches

From: ccie.candidate@securebytes.co.uk
Date: Wed Aug 22 2007 - 15:08:52 ART


Hi Group,

I am hoping someone might be able to shed some light on the above subject. You use the aggregate policing or microflow policing methods on a 6500. Can you use the aggregate policing method at the same time with PFC/DFC QoS commands like the commands below

Interface Gigabit2/8
 wrr-queue bandwidth percent 5 55 40 0 0 0 0
 priority-queue queue-limit 30
 wrr-queue queue-limit 5 25 40 0 0 0 0
 wrr-queue threshold 1 100 100 100 100 100 100 100 100
 wrr-queue threshold 2 80 100 100 100 100 100 100 100
 wrr-queue threshold 3 90 100 100 100 100 100 100 100
 wrr-queue cos-map 1 1 4
 wrr-queue cos-map 2 1 0 1
 wrr-queue cos-map 3 1 2 3 6 7

so after the last command, I will add
 'service-policy output voip_policy' to police voice traffic to a certain bandwidth.

This are the commands used to match the voice traffic
 mls qos
mls qos aggregate-policer voip_1mbps 1000000 2000 conform-action
transmit exceed-action drop

 
class-map match-any voice_qos
  match ip dscp ef

policy-map voip_policy
 class voice_qos
  police aggregate voip_1mbps

The idea is to use the aggregate policer command to police voice traffic to a certain bandwidth on egress interface since voice is in the priority queue and priority queue will always get sent first.

Any comments will be greatly appreciated. Thanks

Deji



This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:12 ART