[37780] in North American Network Operators' Group
RE: Query: What policies do backbone providers use to determine IP ownership?
daemon@ATHENA.MIT.EDU (Deepak Jain)
Thu May 24 03:50:55 2001
Reply-To: <deepak@ai.net>
From: "Deepak Jain" <deepak@ai.net>
To: <jlewis@lewis.org>
Cc: "Nanog@Merit. Edu" <nanog@merit.edu>
Date: Thu, 24 May 2001 03:16:17 -0400
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I have seen dueling routes more often than I'd like to recall.
No one wants to use space that isn't 100% routable. Assuming A has any
peers, some traffic will go there and dead-end. Any customer in the block
will be unhappy. B will eventually give up. A would be foolish to assign
customers in the block until B has given up.
If A is a much better connected network than B (since B is acting like an
ass) the process is much more definitive.
C can, and should be ignored.
Just my opinion, I could be wrong.
Deepak Jain
AiNET
-----Original Message-----
From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of
jlewis@lewis.org
Sent: Wednesday, May 23, 2001 10:31 PM
To: Tony Mumm
Cc: nanog@nanog.org
Subject: Re: Query: What policies do backbone providers use to determine
IP ownership?
On Wed, 23 May 2001, Tony Mumm wrote:
> I've seen a trend lately where I'm finding out, after the fact,
> where pieces of larger CIDR blocks are being taken apart by a
> myriad of unaggregated routes. The other backbone providers
> freely allowed an announcement of that non-portable space to the
> Internet without regard to either the owning provider, or to
> general Internet routing.
Here's a related question. Suppose provider A has a customer C who
multihomes with a connection to A and provider B. C uses IP's assigned by
A. C terminates service with A...but keeps announcing A's space to B. B
propogates the routes to their peers. B and C ignore requests that they
stop using A's space and renumber into B's. How does A reclaim their
space?
One obvious solution is dueling routes...A could announce more specific
routes, fouling things up for B and C hoping this will serve as
encouragement for C to renumber.
--
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Jon Lewis *jlewis@lewis.org*| I route
System Administrator | therefore you are
Atlantic Net |
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