I have a setup with CIPC at a remote site which loses connectivity to the CUCM and, therefore, unregisters. CUCM traces show a keep alive timeout when the phone unregisters. The WAN interface from the site, outbound, has a lot of drops in the Critical (af31) queue. I suspect that this could be the problem but need to know the markings of the keep-alive packets when it leaves the phone. What is the default marking of the packets?
This is the switch interface config
switchport access vlan 100
switchport mode access
switchport voice vlan 200
no logging event link-status
no logging event power-inline-status
srr-queue bandwidth share 1 40 45 15
priority-queue out
no snmp trap link-status
mls qos trust dscp
spanning-tree portfast
spanning-tree guard root
global config:
mls qos srr-queue output dscp-map queue 1 threshold 3 46
mls qos srr-queue output dscp-map queue 2 threshold 3 48 56
mls qos srr-queue output dscp-map queue 3 threshold 1 62
mls qos srr-queue output dscp-map queue 3 threshold 3 24 26 28 30 40 63
mls qos srr-queue output dscp-map queue 4 threshold 3 32 34 36 38
mls qos queue-set output 1 buffers 15 30 35 20
mls qos
The other switches have the 'mls qos trust dscp' on their interfaces to the WAN router, so it looks like the markings stay the same to the router.
Thanks
