EXAMPLE:
interface FastEthernet0/2
description Host/IP Phone
switchport access vlan 2
switchport mode access
switchport voice vlan 3
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos trust cos
macro description cisco-phone
auto qos voip cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
They had done the 'auto qos' command, probably thinking this would be enough. However, the version of code was 12.2(35) on this 3560 switch. What they probably didn't know was that in the code prior to version 12.2(40), the 'priority-queue out' command does not get implemented with auto qos. You have to manually go and put that in. And you need that command in there so that you have a true priority que. Always check QoS when coming behind someone.
Thanks Shane!! Good catch. (Not that I would forget this, or course...no, not me. Oops...)
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