[37291] in North American Network Operators' Group
Re: ISP Filter Policies--Effect is what?
daemon@ATHENA.MIT.EDU (Stephen J. Wilcox)
Tue May 8 15:43:46 2001
Date: Tue, 8 May 2001 19:58:09 +0100 (BST)
From: "Stephen J. Wilcox" <steve@opaltelecom.co.uk>
To: John Fraizer <nanog@Overkill.EnterZone.Net>
Cc: "Murphy, Brennan" <Brennan_Murphy@NAI.com>,
"'nanog@merit.edu'" <nanog@merit.edu>
In-Reply-To: <Pine.LNX.4.21.0105081441180.1763-100000@Overkill.EnterZone.Net>
Message-ID: <Pine.LNX.4.21.0105081954320.18742-100000@staff.opaltelecom.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu
On Tue, 8 May 2001, John Fraizer wrote:
> On Tue, 8 May 2001, Stephen J. Wilcox wrote:
>
> >
> > if you have a /16 why would it be broken down to /24? i would assume the
> > only reason you advertise /24 is because that is the size of your
> > assignment from the NIC, in which case you cannot advertise the /16.
> >
> > if you do own the /16 then yes of course you can advertise it.
>
> Stephen, you neglected to look at the big picture. The "organization" has
> the /16 but has sites spread out all over the planet and has assigned
> /24's to them. Additionally, they connect into the global net via diverse
> providers.
Ah, I got -snip- happy there :) in that case I would question the logic of
being given a large address block only to break it into pieces all over
the world.
I'd wonder why they dont take address space from a regional provider - if
its only /24 it cant be that mission critical for bgp and multihoming...
>
> ><snip>
> >Site BGP Advertisement to ISP
> >Amsterdam 169.61.201.0/24 AMSISP
> >Austin 169.61.111.0/24 Genuity & Internap
> >SanFran 169.61.119.0/24 Genuity & Internap
> >Tokyo 169.61.202.0/24 TOKISP
> >Sydney 169.61.156.0/24 SYDISP
>
>
> ---
> John Fraizer
> EnterZone, Inc
>
>
>
--
Stephen J. Wilcox
IP Services Manager, Opal Telecom
http://www.opaltelecom.co.uk/
Tel: 0161 222 2000
Fax: 0161 222 2008
