[97092] in North American Network Operators' Group
RE: IPv6 Advertisements
daemon@ATHENA.MIT.EDU (michael.dillon@bt.com)
Fri Jun 1 04:10:13 2007
Date: Fri, 1 Jun 2007 09:09:47 +0100
In-Reply-To: <8666.1180639256@turing-police.cc.vt.edu>
From: <michael.dillon@bt.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu
> > When you have a large company, the company is also split=20
> over several=20
> > administrative sites, in some cases you might have a single=20
> > administrative group covering several sites though, this=20
> allows you to=20
> > provide them with a single /48 as they are one group they will know=20
> > how to properly divide that address space up.
>=20
> Works great, until you realize that for traffic engineering=20
> purposes, you really want to announce your Los Angeles site=20
> at an exchange near there, and your London site to be=20
> announced near there, and you end up wondering whether=20
> deaggregating the /48, or getting a second/third /48 would be=20
> wiser.. ;)
I believe that a separate /48 per site is better regardless of whether
or not the company has contracted with a single ISP for all sites, or
not. As far as I am concerned if there is a separate access circuit,
then it is a site and it deserves its own /48 assignment/allocation.
--Michael Dillon
