[28734] in North American Network Operators' Group
Re: Optical Crossconnects and IP
daemon@ATHENA.MIT.EDU (Danny McPherson)
Sun May 14 17:52:52 2000
Message-Id: <200005142152.PAA16682@tcb.net>
To: nanog@nanog.org
From: Danny McPherson <danny@tcb.net>
Reply-To: danny@tcb.net
Date: Sun, 14 May 2000 15:52:00 -0600
Errors-To: owner-nanog-outgoing@merit.edu
> I found this sentence to be quite instructive.
>
> \begin{quote}
> In connection with link failures, we note that one could
> pre-compute a good weight setting for each possible link
> failure and have them ready for loading when needed.
> \end{quote}
>
> That has some interesting operational issues, one would think, especially
> in large networks that are dense partial meshes, with associated link
> failure scenarios.
Indeed. Especially considering the potential introduction of transient
fowarding loops when attempting to utilize pre-computed backup "links"
in a vanilla DA-based packet-switched network.
-danny
