[40915] in North American Network Operators' Group
Re: multi-homing fixes
daemon@ATHENA.MIT.EDU (Andreas Plesner Jacobsen - Tiscali)
Sat Aug 25 13:27:42 2001
Date: Sat, 25 Aug 2001 19:27:03 +0200
From: Andreas Plesner Jacobsen - Tiscali <apjacobsen@dk.tiscali.com>
To: nanog@merit.edu
Message-ID: <20010825192703.U22690@wol.dk>
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In-Reply-To: <200108251702.MAA11917@bluejay.creighton.edu>; from lsheldon@creighton.edu on Sat, Aug 25, 2001 at 12:02:33PM -0500
Errors-To: owner-nanog-outgoing@merit.edu
On Sat, Aug 25, 2001 at 12:02:33PM -0500, Larry Sheldon wrote:
>
> > > Do you *really* want your DNS TTL set down in the same range as
> > > the time for a BGP route fall-over?
> >
> > Ever read RFC1123?
> >
> > It states:
> > 2.3 Applications on Multihomed hosts
>
> But I thought the thread was talking about multi-homed _networks_,
> which I take to be a different problem from multi-homed _hosts_.
>
> Am I in over my head again?
If we define a network as something, which consists of: clients and
servers (hosts) - then the problem on hosts could be solved with DNS as
above.
Clients could be either:
1. NATed behind a HSRPish device so that they always use the same IP,
and the NAT device translates to whichever uplink is currently active
or
2. Reconfigured if one link should be down
--
Med venlig hilsen / Sincerely
Andreas Plesner Jacobsen (Network Engineer) / Tiscali A/S (World Online)
Peter Bangs Vej 26, DK-2000 Frederiksberg - http://www.tiscali.dk
Tlf. +45 3814 7000 - Fax +45 3814 7007
