Re: Re: BGP Keepalives

From: YJC (stiff.yu@xxxxxxxxxxxxxxxxxx)
Date: Thu Jan 11 2001 - 01:42:57 GMT-3


   
bgp peer will come up.but isdn will down if without interesting package,
because bgp keepalive is not interesting package,so bgp peer will down,
so I think we need keepalive really high value and make bgp keepalve is
interesting package,am I right?

----- Original Message -----
From: Michelle T <mtruman@mn.mediaone.net>
To: Connary, Julie Ann <jconnary@cisco.com>; <ccielab@groupstudy.com>
Sent: Wednesday, January 10, 2001 11:26 PM
Subject: Re: Re: BGP Keepalives

> Filtering BGP from the dialer list should only keep BGP from bring up dial
> as interesting traffic. Once the dial circuit is up and the primary has
gone
> away, given Loopback peers, I don't see why the BGP routes/keeps should
not
> flow freely. Do I understand the topology correctly? Router --- Primary
Link
> with BGP peer hooked to a loopback and backup link via ISDN to another
site.
> The site you dial into must also have the peer statement to your loopback.
> During normal ops, that site should be able to reach you via serial link
and
> during disaster recovery, when OSPF routes have converged and the loopback
> is again reachable, the BGP peer should come up.
>
> Michelle
>
>
> ----- Original Message -----
> From: "Connary, Julie Ann" <jconnary@cisco.com>
> To: <ccielab@groupstudy.com>
> Sent: Wednesday, January 10, 2001 7:24 AM
> Subject: Fwd: Re: BGP Keepalives
>
>
> > Here is what is happening in the lab I am doing and why I asked the
> > question about
> > BGP keepalives. The ISDN link is an ospf demand circuit. If I filter BGP
> in
> > the dialer-list then as others have pointed out - the peers timeout and
> > loose connectivity.
> >
> > So from the emails three possiblities:
> >
> > filter bgp
> > keepalive 0 - do not exchange keepalives
> > keepalive really high value.
> >
> > Julie Ann
> >
> >
> > >Date: Tue, 09 Jan 2001 17:54:56 -0500
> > >To: "McKenzie, Barry" <BMcKenzie@Timebridge.com>
> > >From: "Connary, Julie Ann" <jconnary@cisco.com>
> > >Subject: Re: BGP Keepalives
> > >
> > >I have peers on either side of a DDR link:
> > >
> > > ISDN
> > >|----------------------------|
> > >| |
> > >R6--------ethernet-----r5------------r1
> > >
> > >R6 and R1 are IBGP peers. So when The Ethernet Breaks, the BGP
keepalives
> > >are keeping up the link.
> > >
> > >
> > >both R6 and R2 then have external BGP peers.
> > >
> > >
> > >Julie Ann
> > >
> > >
> > >At 05:36 PM 1/9/2001 -0500, you wrote:
> > >>Julie, out of curiosity why would you want to run BGP over DDR?
> > >>
> > >>bm
> > >>



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