[48702] in North American Network Operators' Group
Re: Error in assignments....?
daemon@ATHENA.MIT.EDU (Mike Leber)
Wed Jun 12 20:38:26 2002
Date: Wed, 12 Jun 2002 17:36:55 -0700 (PDT)
From: Mike Leber <mleber@he.net>
To: Sabri Berisha <sabri@cluecentral.net>
Cc: Kurt Erik Lindqvist <kurtis@kurtis.pp.se>,
"nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <20020611150322.J95280-100000@doos.cluecentral.net>
Errors-To: owner-nanog-outgoing@merit.edu
On Tue, 11 Jun 2002, Sabri Berisha wrote:
> Suppose company A has a PA allocation 10.21.0.0/20. Company A gets a T1
> from Carrier B. Carrier B announces 10.21.0.0/20 with their AS65531 and
> statically route the /20 to company A. If Company A wants to be redundant
> and gets another T1 from Carrier C, Carrier C will announce 10.21.0.0/20
> with their AS65532 and statically route 10.21.0.0/20 to Company A.
>
> I see no problem in this. If Carrier B screws up, the traffic will still
> flow through Carrier C. If Carrier B screws up in such a way that they
> still announce the netspace, Carrier C can announce 2 /21's instead of 1
> /20 so it will still work.
This isn't being done.
Only one AS is announcing the route. The other registration is cruft.
Mike.
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