BCP regarding TOS transparancy for internet traffic

Wed May 25 21:06:35 UTC 2005

On Wed, 25 May 2005, Lars Erik Gullerud wrote:

> The "general population", who does NOT pay for that privilege, gets the 
> BE-treatment, which is what they pay for. And that requires a rewrite of the 
> DSCP/TOS for said traffic, otherwise how do you prevent packets from the 
> "general population" filling up the queues you have reserved for the

One way is to null MPLS EXP for BE traffic and do QoS on that, and then 
set EXP bits to something different for non-BE traffic. That leaves DSCP 
transparent end-to-end on the IP packet.

But as I have read the discussion I do think that null:ing DSCP for all BE 
traffic is the way to go, and keep the clean copy of DSCP to EXP within 
the network for the customers paying for preferred treatment (or whatever 
service you want to prioritize).

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se