We are currently running IOS from 12.2(35) to 12.2(50) on either a Cisco Catalyst 3750 or 3750v2 switches.
Is it possible to trust both CoS and DSCP on the switch ports at the same time as seen in a example
configuration below. The reason we would like to trust both, CoS for backward compatiablity for older
equipment and DSCP for new equipment and future path to transition to IPv6 that uses DSCP.
switchport access vlan 2096
switchport mode access
switchport voice vlan 2097
mls qos trust device cisco-phone
mls qos trust cos
mls qos trust dscp
ip arp inspection limit 60
no mdix auto
spanning-tree bpduguard enable