RE: [nsp] [nsp] best practice for bgp load balancing with unequal bandwidth

From: Stephane Perez (perezs@nortelnetworks.com)
Date: Wed Mar 21 2001 - 06:00:20 EST


Oh yes, exuse me, but I had forgot that there was 2 ISP.

 So in this way the community can be used for incoming routes (depending of
the network design and evolution) and prepending to the outside..

cheers

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PEREZ Stephane
Carrier IP Specialist
Nortel Networks
ATS IP Core Infrastructure
25, allee Pierre Ziller
06560 Valbonne, FRANCE
Phone: +33 4 92 96 18 05 Mail : mailto:perezs@nortelnetworks.com
Fax : +33 4 92 96 16 68 www : http://www.nortelnetworks.com
Esn : 296-1805 Intranet :
http://hector.europe.nortel.com

-----Original Message-----
From: Gert Doering [mailto:gert@greenie.muc.de]
Sent: 21 March 2001 11:46
To: Perez, Stephane [FRAVA:4747:EXCH]; 'Gert Doering'; Edward S.
Desouza; Budi Widjojo; cisco-nsp@puck.nether.net
Subject: Re: [nsp] [nsp] best practice for bgp load balancing with
unequal bandwidth

Hi,

On Wed, Mar 21, 2001 at 10:22:13AM -0000, Stephane Perez wrote:
> When you advertise routes out, you can use instead or with the AS
Prepend
> the MED which is specified out in the modifier. The lowest value of the
MED
> is the more preferred route.

MED will usually not be honoured if you have two lines to different
upstream ISPs (as it's not transitive).

gert

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fax: +49-89-35655025
gert.doering@physik.tu-muenchen.de



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