I have 6509's with 2 Ten-gig interfaces configured into a Port Channel (routed with IP addressing) - the IOS is 12.2(18)SXE3. I want to trust the DSCP values of packets traveling through the interfaces and have applied 'mls qos trust dscp' on both the physical Ten-gig interfaces as well as the L3 Port Channel interface.
1.Is it necessary to have the statement on all the interfaces, or is just having it on the Port channel enough?
Here is the config right now:
interface Port-channel4
description to 6509-Core-A P4 (T1/3, T2/3)
ip address 164.xxx.xx.xx 255.255.255.252
ip pim sparse-mode
ip route-cache flow
mls qos trust dscp
!
interface TenGigabitEthernet1/1
description to 6509-Core-A T1/3 (P4)
no ip address
ip route-cache flow
mls qos trust dscp
channel-group 4 mode desirable
!
interface TenGigabitEthernet1/2
description to 6509-Core-A T2/3 (P4)
no ip address
ip route-cache flow
mls qos trust dscp
channel-group 4 mode desirable
Also, what command can I use to see the dscp counters? In the 3560/3750 catalyst line you can enter: 'sh mls qos int f0/1 statistics' and get a display of all the dscp/cos input/output packet counts, but I can't find a comparable command in the 6509.
2. Is there one?