[30292] in North American Network Operators' Group
Re: Sonet protection usage
daemon@ATHENA.MIT.EDU (Neil J. McRae)
Wed Jul 26 04:09:33 2000
From: "Neil J. McRae" <neil@COLT.NET>
Message-Id: <200007260807.JAA10950@NetBSD.noc.COLT.NET>
In-Reply-To: <20000725155141.B47979@twincreeks.net> from Steve Feldman at "Jul 25, 2000 03:51:41 pm"
To: feldman@twincreeks.net (Steve Feldman)
Date: Wed, 26 Jul 2000 09:07:22 +0100 (BST)
Cc: nanog@merit.edu
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>
> A quick poll:
>
> Are many ISPs taking advantage of SONET APS protection
> to provide port or router redundancy on short (metro-area)
> circuits? Or is it more typical to get two circuits and
> load-share? Or just not bother?
We use APS on all of our circuits both metro and international.
Its main benefit is for when routers fail or muxes fail. You can
setup SDH to have redundant muxes in different pops also.
During maintenance or router software upgrades its a very useful.
Neil.
