[70848] in North American Network Operators' Group
Re: Open Source BGP Route Optimization?
daemon@ATHENA.MIT.EDU (Arnold Nipper)
Fri May 28 12:35:35 2004
Date: Fri, 28 May 2004 18:34:52 +0200
From: Arnold Nipper <arnold@nipper.de>
To: Per Gregers Bilse <bilse@networksignature.com>
Cc: Sam Stickland <sam_ml@spacething.org>, nanog@merit.edu
In-Reply-To: <200405281337.i4SDbN928478@spirit.qbfox.com>
Errors-To: owner-nanog-outgoing@merit.edu
On 28.05.2004 15:37 Per Gregers Bilse wrote:
> On May 28, 10:37am, "Sam Stickland" <sam_ml@spacething.org> wrote:
>>in this direction. IIRC the problem isn't to do with the route annoucements,
>>it's the route withdrawals. I believe BGP only specifies the prefix being
>>withdrawn and not the path, so if it's advertised multiple paths to a prefix
>>it's impossible to know which has been withdrawn.
>
>
> That is 100% correct, yes. Selective withdrawal is not supported.
>
Wouldn't Equal Cost Multi-Path (ECMP) solve this?
Arnold
