[c-nsp] control-plane qos marking

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Wed Mar 26 10:19:20 EDT 2008


Dmitry Kiselev <> wrote on Wednesday, March 26, 2008 3:06 PM:

> Hello!
> 
> On Wed, Mar 26, 2008 at 02:15:46PM +0100, Reinhold Fischer wrote:
> 
>>>    I there any way to set some dscp value to packets originating
>>> from Cisco IOS itself? I mean syslog messages, netflow data export,
>>> snmp messages, icmp and so on. I know about default cs6 marking
>>> for routing protocols, but it is not all traffic :)
>>>    Could anybody point me to right direction?  Thanks!
>>> 
>>> P.S. platforms are C7600 and Cat3750
>> 
>> You can use PBR to mark the local generated traffic:
>> 
>> ! Use ACL to specify what you want to have marked
>> access-list 166 permit ...
>> ...
>> 
>> route-map local-qos permit 10
>>  match ip address 166
>>  set ip precedence x
>> 
>> ip local policy route-map local-qos
> 
> 
> Aha! It works fine on Cat3750 and all RP's traffic on C7600.
> Thanks a lot!
> 
> But question still open for 7600 SP - NDE process for example.

on most platforms, NDE traffic can't be classified locally as it
bypasses the regular IOS output features (which also include local PBR),
and I think this applies to the 7600 too.. Flexible netflow (future
Netflow infrastructure) allows to set DSCP for netflow export packets..

	oli


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