DSCP Transparent mode

[aridy]

Hi, 

I need to know if there is any way to check is dscp rewrite is enabled or disabled in Layer 2 and Layer 3 devices. 

I am using CAT9500, Cat 4500, ME3600 and ASR920 devices. 

I am trying show mls qos command, same as in Cat3750, but it is not working in these devices. 

Is there any command to check this? 

Thanks, 

[Jitendra Kumar]

The commands on a 4500 for checking QoS counters/general QoS info are:

show interface counter all module x

show interface x/y counter detail

show platform hardware qos interface gigabitEthernet x/y

show qos int x/y

These should give you the QoS counters showing per queue counters, per queue drops and DBL drops when DBL is enabled,

show policy-map interface

Thanks,

Jitendra

[pman]

Hi,

check if mls qos rewrite ip dscp configuration command command configured.

The DSCP transparency mode is disabled by default. If it is enabled (mls qos rewrite ip dscp configuration command), DSCP rewrite will not happen.

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/16-12/configuration_guide/qos/b_1612_qos_9300_cg/configuring_qos.html#reference_u4z_j2b_p1b