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

[McCallum, Robert]

Not sure about E2 line cards.  I am running E5 cards which the new MQC is
rubbish.

I need to match on exp and IP and DSCP and this is impossible.  You can
match on one
statement only i.e. only exp or only prec.  They (Cisco) say that doing IP
Prec 5 matches
will also match on exp 5 - but would you believe them?  I don't so im on the
old tx-cos stuff.

Robert McCallum 


> -----Original Message-----
> From: David Freedman [mailto:david.freedman at uk.clara.net] 
> Sent: 07 December 2004 15:09
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] A question about implementing CoS on GSR12012
> 
> 
> 
> *** PGP Signature Status: unknown
> *** Signer: Unknown, Key ID = 0x980466B2
> *** Signed: 07/12/2004 15:08:18
> *** Verified: 07/12/2004 15:14:18
> *** BEGIN PGP VERIFIED MESSAGE ***
> 
> Hiya,
> 
> 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!)
> 
> thanks in advance,
> 
> 
> --
> David Freedman
> Network Engineering Department
> Claranet UK Limited
> http://www.clara.net
> 
> *** END PGP VERIFIED MESSAGE ***
> 
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