To display the queuing information including buffer, threshold and queue limit values of a specified interface on a switch that runs Cisco NX-OS 4.2(1)N2(1):

show queuing interface [port number]

Class Map – Policy Map – Service Policy

show run interface [interface] »> to see Service Policy

show policy-map [service policy name]

show policy-map interface [interface name]

show class-map [class name]

For IOS XR:

show policy-map pmap-name [service policy name]