QoS DSCP marking inbound 3550

From: Pierre-Alex (paguanel@hotmail.com)
Date: Sun May 28 2006 - 13:29:00 ART

I am trying to accomplish the following (apparently very basic):

Diagram:

R5 --------------(fa0/5)---Switch--(fa0/4)------------------R4

Task:

On switch2 mark all packets coming from R5 with af11.
Do this on port fa 0/5

Configs:

On Switch:

interface FastEthernet0/5
 switchport access vlan 34
 switchport mode access
 service-policy input r5-i

policy-map r5-i
  class class-default
   set dscp 11

Verification:

I am pinging R4 from R5 and checking the dscp received using a class-map on
R4
As you can see, no packet is marked

On R4

r4#sh policy-map interface
 Ethernet0/1.34

  Service-policy input: marking

      Class-map: af11 (match-all)
      0 packets, 0 bytes
      30 second offered rate 0 bps
      Match: ip dscp af11 (10)

    Class-map: class-default (match-any)
      1006859 packets, 118805079 bytes
      30 second offered rate 408000 bps, drop rate 0 bps
      Match: any

Please note that configuring "mls qos trust dscp" removes the service policy
from the interface . So adding this command does not solve the problem

Any idea?

Thanks

Pierre

This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART