[36386] in North American Network Operators' Group
Re: Faster 'Net growth rate raises fears about routers
daemon@ATHENA.MIT.EDU (Jesper Skriver)
Wed Apr 4 11:11:23 2001
Date: Wed, 4 Apr 2001 17:09:12 +0200
From: Jesper Skriver <jesper@skriver.dk>
To: RJ Atkinson <rja@inet.org>
Cc: nanog@merit.edu
Message-ID: <20010404170912.H48111@skriver.dk>
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In-Reply-To: <5.0.2.1.2.20010403194701.00a0e040@10.30.15.2>; from rja@inet.org on Tue, Apr 03, 2001 at 07:51:41PM -0400
Errors-To: owner-nanog-outgoing@merit.edu
On Tue, Apr 03, 2001 at 07:51:41PM -0400, RJ Atkinson wrote:
> At 18:35 03/04/01, Jesper Skriver wrote:
>
> >Don't know how the world looks like in the US, but here a SDH/Sonet
> >provider will never guarentee diversity of his/her circuit to that
> >of a different provider,
>
> Interesting, though they do guarantee that to NATO
> circuits.
The company I work for, can and do provide diverse circuits, but they
won't guarentee diversity between that and one of a different provider,
the reasoning behind this is, that one cannot know if/when the other
provider reroute their circuit, so that there is no diversity any more.
> smd, are you able to get diverse local paths over there ?
>
> >often the end user can be almost sure that at least
> >the last few km will be in the same duct, as the local communities
> >demand that the providers cooperation when digging fiber into the
> >ground...
>
> Obviously there is a concern if everyone is in the same
> duct, but if one builds with rings like sensible engineers,
SDH/Sonet protection removes quite a bit of the problem yes, but often
it's usefull to get 2 circuits with diverse routing (and without
protection) instead of a single with protection, and the price is
usually in the same order for both.
We always get multiple circuits with diverse routing instead of a single
circuit with protection if we can.
/Jesper
--
Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456
Work: Network manager @ AS3292 (Tele Danmark DataNetworks)
Private: FreeBSD committer @ AS2109 (A much smaller network ;-)
One Unix to rule them all, One Resolver to find them,
One IP to bring them all and in the zone to bind them.
