[c-nsp] A question about implementing CoS on GSR12012

[David Freedman]

Also, presuming I do this, is it treated as DRR on my E2 ?

Dave.

Oliver Boehmer (oboehmer) wrote:
> David,
> 
>> I've a question about implementing CoS on GSR12012 using the 3 Port GE
>> linecards (engine 2), that I'm wondering if anybody has some insight
>> over. 
>> 
>> I'd like to use the newer MQC (service-policy) to deal with this,
>> rather than the older "tx-cos/rx-cos" format.
>> 
>> The main problem is that we'll be using MPLS EXP bits purely for
>> classification, there are no plain IP packets floating around that we
>> are bothered about.
>> 
>> According to the docs on MQC for GSR
>> (http://www.cisco.com/warp/public/63/mqc.html)
>> matching of MPLS EXP is not possible on E2 linecards,
>> 
>> 1. does anybody have any ideas as to how I can do this on this
>> linecard? 
>> 2. does it need to be done in software?
>> 3. does anybody have an example for an E2 GE linecard
>> (preferably something with WRED!)
> 
> "match ip precedence <n>" will also match labelled packets with exp-bits
> <n> on this engine (and on engine0 for that matter), so just configure
> your class-maps pretending you'll be switching ip packets..
> 
> 	oli
> 
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