Please help confirm that QOS for VoIP is setup correctly on my
4506 which my main Avaya PBX is connected to. It has a Sup II-Plus
IOS=12.2(31)SGA with a WS-X4524-GB-RJ45V line card.
My Avaya PBX Medpros and Clan cards will be connected at 100MB to the line card
and I expect to have upwards of 40MB of voice traffic (DSCP-46) going through
some of those ports. The Avaya PBX marks voice packets with DSCP-46 and
control packets with DSCP-24.
I've configed auto qos and trust dscp on all ports and this the result
along with a typical port config:
qos map dscp 24 25 26 27 28 29 30 31 to tx-queue 4
qos map dscp 32 33 34 35 36 37 38 39 to tx-queue 4
qos map cos 3 to dscp 26
qos map cos 5 to dscp 46
switchport access vlan 126
switchport mode access
qos trust dscp
auto qos voip trust
bandwidth percent 33
shape percent 33
service-policy output autoqos-voip-policy
Is this auto qos config adequate for what I need - to insure that upwards of
40MB of voice traffic (~400 G-711 calls on some of the ports) will be serviced
by the priority queue?