[109157] in North American Network Operators' Group
Re: ECN
daemon@ATHENA.MIT.EDU (David Freedman)
Fri Nov 7 06:02:14 2008
To: nanog@nanog.org
From: David Freedman <david.freedman@uk.clara.net>
Date: Fri, 07 Nov 2008 11:00:07 +0000
X-Complaints-To: usenet@ger.gmane.org
In-Reply-To: <871vxnx4nf.fsf@obelix.mork.no>
Errors-To: nanog-bounces@nanog.org
Interesting , I hadn't followed this since draft-ietf-mpls-ecn-00,
, I eagerly await a vendor implementation :)
Dave.
Bjørn Mork wrote:
> David Freedman <david.freedman@uk.clara.net> writes:
>
>> Implementing this in an MPLS core is not an easy task, you can really
>> only do this on the edge, when the MPLS labelled packet arrives at an
>> LSR, we don't know if it contains a TCP segment or not (fancy deep h/w
>> implementations excluded), all we know is that , if there is congestion,
>> we can discard it based on the EXP bits in the shim.
>
> Please see RFC 5129
>
>
> Bjørn
>
>
