Re: nisc-01742 (ticket update) Re: Mail problems at OpenSystems, Inc.

Vadim Antonov <avg@sprint.net> Wed, 08 March 1995 19:04 UTC

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Date: Wed, 8 Mar 1995 13:55:31 -0500
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From: Vadim Antonov <avg@sprint.net>
Message-Id: <199503081855.NAA26096@titan.sprintlink.net>
To: davidc@iij.ad.jp, keith@pipex.net
Subject: Re: nisc-01742 (ticket update) Re: Mail problems at OpenSystems, Inc.
Cc: avg@sprint.net, bgpd@merit.edu, bilse@eu.net, cix-tech@cix.org, fedor@msf.psi.net, nisc@psi.com, roll@stupi.se, schoff@us.psi.com, smd@sprint.net

Keith Mitchell wrote:

>The effect of this lack of "split-horizon" processing in peers'
>filters is to turn MAE-East into a giant route-flap echo-chamber,
>with a damping time in excess of 10 mins. I really think that some
>effort to cut this down would be well spent.

Right on the spot.  It is a very good observation.

We do split-horizon filtering on all incoming and outgoing updates
at MAE-E and other interconnection points.

The worst flap echoeing offender is undoubtly ANS -- we hear
full routing table from them.

--vadim