[c-nsp] WS-X6704-10GE card doesn't perform DSCP marking (Ruzhanskaya Olga)

Ольга Ружанская frosya84 at mail.ru
Fri Oct 16 07:35:20 EDT 2009


Hello List!

We are using WS-X6704-10GE line cards on 7604-RSP720-3CXL routers (12.2(33)SRC1).
These routers play PE role in MPLS network.
One interface is connected to 3750E Catalyst, and services are terminated on 7604 with dot1q subinterfaces.
The problem arises when we are trying to use simle policy map, like this:

   Policy Map test
    Class test1
     police cir 2097000 bc 393216 be 786432
       conform-action set-dscp-transmit af33
       exceed-action drop
       violate-action drop
    Class class-default
      set ip dscp af31

The outputs are following:
1) CORE#sh policy-map interface TenGigabitEthernet3/2.340
 TenGigabitEthernet3/2.340 
  Service-policy input: test
    class-map: test1 (match-all)
      Match: access-group 100
      police :
        2096000 bps 393000 limit 393000 extended limit
      Earl in slot 1 :
        47318 bytes
        30 second offered rate 10768 bps
        aggregate-forwarded 47318 bytes action: set-dscp-transmit
        exceeded 0 bytes action: drop
        aggregate-forward 37848 bps exceed 0 bps 
    class-map: class-default (match-any)
      Match: any 
      set dscp 26:
      Earl in slot 1 :
        4568517 bytes
        30 second offered rate 812640 bps
        aggregate-forwarded 4568517 bytes

2) CORE#sh mls qos ip TenGigabitEthernet3/2.340
   [In] Policy map is test   [Out] Default.
 QoS Summary [IPv4]:      (* - shared aggregates, Mod - switch module)
      Int Mod Dir  Class-map DSCP  Agg  Trust Fl   AgForward-By   AgPoliced-By
                                   Id         Id                              
-------------------------------------------------------------------------------
 Te3/2.340  1  In      test1   30  197     No  0         118000              0
 Te3/2.340  1  In class-defa   26  199     No  0       17857513              0 

3) CORE#sh mls qos
  QoS is enabled globally
  Policy marking depends on port_trust
  QoS ip packet dscp rewrite disabled globally

But nothing is marked (even in class-default) - I catch packets on the other side of network with source/destination matching, not with DSCP...

I've read as much information about PFC QoS as possible from cisco.com, and it is written that such settings must work.
But it doesn't:-(

Have anyone observed such problem? 
Any suggestions?

P.S. I'm sorry if someone have already written about this, I didn't find appropriate information in archives.
Please, provide a link..

Best regards,
Olga 


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