[c-nsp] 2 full BGP feeds on 3750?...expanded

[Saku Ytti]

On (2006-09-06 22:43 +0500), Shakeel Ahmad wrote:

> I'll agree to this, UNTILL your upstream is a transite provider for your
> prefix, you don't even need to run BGP.
> 
> If your provider is a transit provider for your publc prefixes, just recieve
> a default router from their BGP process and do whatever you wan't (MED's,
> weights or announce) with your own prefixes....

Take default + full BGP from your transit providers, then prefer default
from your primary and leak more spesifics in from other provider in
case you want some prefices to go out via 'secondary' transit provider
instead and just drop rest.
For this task, amount of routes 3750 takes is quite enough to 
handle most traffic engineering needs.

> someone correct me if i am wrong.
> 
> shakeel
> 
> 
> On 9/6/06, Mathias at telecityredbus.com <Mathias at telecityredbus.com> wrote:
> >
> > Hi Gert,
> >
> > You are right for end to end problems although static can still be used
> > in which case a monitoring package should be used to help close the gap.
> >
> > Mathias,
> >
> >
> > -----Original Message-----
> > From: Gert Doering [mailto:gert at greenie.muc.de]
> > Sent: 06 September 2006 12:45
> > To: Mathias Kenfack-Tabakem (LON)
> > Cc: Mark at u.tv; peter.salanki at bahnhof.net; cisco-nsp at puck.nether.net
> > Subject: Re: [c-nsp] 2 full BGP feeds on 3750?...expanded
> >
> > Hi,
> >
> > On Wed, Sep 06, 2006 at 12:10:53PM +0100, Mathias at telecityredbus.com
> > wrote:
> > > I'll go a step further with that reasoning. Do we need BGP at all in
> > > that environment? Unless I am missing something I'll argue no. Static
> > > route and floating static route will do the trick here.
> >
> > I'd go for BGP "default route only" to make sure you notice if there are
> > end-to-end problems, but the ethernet link is still "up" (otherwise
> > you'll have black holes).
> >
> > gert
> > --
> > USENET is *not* the non-clickable part of WWW!
> >
> > //www.muc.de/~gert/
> > Gert Doering - Munich, Germany
> > gert at greenie.muc.de
> > fax: +49-89-35655025
> > gert at net.informatik.tu-muenchen.de
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> >
> >
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-- 
  ++ytti