Hi
Has anyone had any experience configuring QoS on catylst switches for Mitel phones? I am hoping to classify voice traffic using COS 5(as per cisco phones).
The mitel 5220 phones support CDP, so I have configured my test switch port as follows.
interface FastEthernet0/29
description Test User - Phone & PC
switchport access vlan 19
switchport voice vlan 20
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
no snmp trap link-status
auto qos voip cisco-phone
spanning-tree portfast
spanning-tree bpduguard enable
end
I have setup monitoring of the port, and according to wireshark the mitel phones are passing DSCP 44, but not passing any COS tags.
On the DHCP server the there is a scope option that sets 'priority 6', but this doesn't seem to translate to COS that I can see.
I have tried to setting 'mls qos cos 5' and 'mls qos cos override', but still I can't see any COS markings received either on the Test User port, or the destination phone port.
Anyone got any thoughts?
