[c-nsp] 7200 DSCP-to-EXP Mapping

[ar]

Thanks. I dont want to apply policy on all ingress interface of the PE to remark traffic. That's why I want to be sure on this TOS reflection..

If this is the case, is it safe enough to just do a policy-map on the  PE-to-P interface matching for the reflected EXP bits?



--- On Mon, 9/19/11, Mark Tinka <mtinka at globaltransit.net> wrote:

From: Mark Tinka <mtinka at globaltransit.net>
Subject: Re: [c-nsp] 7200 DSCP-to-EXP Mapping
To: cisco-nsp at puck.nether.net
Cc: "Tony" <td_miles at yahoo.com>, "ar" <ar_djp at yahoo.com>
Date: Monday, September 19, 2011, 12:26 AM

On Friday, September 16, 2011 12:29:53 PM Tony wrote:

> My understanding is that the 3 bits of the IP precedence
> field are copied to the EXP as part of the MPLS
> encapsulation. This is not platform (or even vendor)
> specific.

I can confirm that.

Always best to mark your ingress packets with the right EXP 
value if you don't want surprises when queuing and 
scheduling happens upstream.

Mark.