Re: [nsp] Mapping traffic into MPLS tunnels

From: Ravichander Vaidyanathan (vravi@research.telcordia.com)
Date: Thu May 23 2002 - 11:28:07 EDT


Sean,

>
> I didn't realize VRFs were part of this scenario... are you
> putting L3 VPNs into TE LSPs? My question is, why would you
> want to apply PBR to VPNs? Do you want to shunt certain
> classes of traffic into LSPs that get different CoS treatment
> by LSRs? You might be able to just mark EXP bits using
> MQC- provided the hardware can do it- and let it go across
> an LSP to the other PE via normal routing.
>

The guaranteed bw feature of TE LSPs could be useful for supporting
customers who are willing pay for it. Shunting VPNs into TE LSPs with
guaranteed bw helps ensure that this bw constraint can be met for the VPN
customer.

The other philosophy that you brought up is to use COS with the EXP
bits. Is there IOS support for classifying traffic into different queues
(say WFQ) based on the MPLS EXP bits?

thanks,
Ravi



This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:11:57 EDT