So what if you used an update-source of your ethernet interface? When it
went down, that IP wouldn't be valid on the box, and BGP couldn't use it.
*shrug* Just a thought.
-----Original Message-----
From: Gert Doering [mailto:gert@greenie.muc.de]
Sent: Wednesday, January 23, 2002 6:13 PM
To: Anne Marcel Roorda; cisco-nsp@puck.nether.net
Subject: Re: [nsp] basement multihoming
Hi,
On Wed, Jan 23, 2002 at 10:44:46PM +0100, Anne Marcel Roorda wrote:
> > > Anyone else want to comment on this? How exactly do keepalives work
on an
> > > ethernet link if you've got a L2 device between two L3 endpoints?
> >
> > BGP uses keepalive packets in the TCP session. So it will know if the
> > connection breaks even if the local ethernet heartbeat is still there.
>
> You may also want to change the default timeouts to something other
> then standard as the ethernet port is not guaranteed to go down if the
> link somehow fails.
That was my point. BGP doesn't care if the ethernet is down or not - if
the TCP session works, packets can flow, and if not, not.
gert
-- USENET is *not* the non-clickable part of WWW!//www.muc.de/~gert/ Gert Doering - Munich, Germany gert@greenie.muc.de fax: +49-89-35655025 gert.doering@physik.tu-muenchen.de
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:29 EDT