QOS issues Cisco 3400-12CS

Unanswered Question
Sep 15th, 2008


Can someone explain why this simple policy is not working? My understanding is that all ingress traffic from interface G0/9 should get marked down to dscp af31.

Policy Map test

Class class-default

set dscp af31

interface GigabitEthernet0/9

switchport access vlan 296

media-type rj45

service-policy input test


I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Marwan ALshawi Mon, 09/15/2008 - 22:15

have u entered mls qos on the global config mode?

also try this command if u wanna mark all traffic:

interface GigabitEthernet0/9

mls qos cos 3


interface GigabitEthernet0/9

mls qos dscp af31

then do

show mls qos interface GigabitEthernet0/9

and look at

default COS:

good luck

if helpful rate

slavoie112 Tue, 09/16/2008 - 06:28

tks for you quick reply.

mls commands are not available on 3400 platform.

The same policy applied on a 3400-24TS model works well. This issues appears only on the 3400-12CS model, and only if the port is set in access mode.

any idea why?


This Discussion