I have seen this configuration at one of my clients network, the switch is an old 6509 with sup 32 8GE, the problem is who ever did it, he did not configure the priority queue out and he did not map CoS 5 to anything:
!
interface GigabitEthernet5/7
description link to data center...
ip address 10.1.1.1 255.255.255.0
ip nbar protocol-discovery
ip route-cache flow
logging event link-status
load-interval 30
wrr-queue bandwidth percent 21 31 48
wrr-queue random-detect min-threshold 1 40 70 100 100 100 100 100 100
wrr-queue random-detect min-threshold 2 40 70 100 100 100 100 100 100
wrr-queue random-detect min-threshold 3 40 70 100 100 100 100 100 100
wrr-queue random-detect max-threshold 2 100 100 100 100 100 100 100 100
wrr-queue cos-map 1 1 1
wrr-queue cos-map 1 2 0
wrr-queue cos-map 2 2 4
wrr-queue cos-map 3 1 3
wrr-queue cos-map 3 2 6 7
mls qos trust dscp
spanning-tree bpduguard disable
end
the question is, where cos 5 packet are going to now???? basically if we don't map a CoS value to a queue. is there a default queue it goes to and what will be the tresholds?
Thanks in advance.
Mo
