[163944] in North American Network Operators' Group
Re: /25's prefixes announced into global routing table?
daemon@ATHENA.MIT.EDU (Majdi S. Abbas)
Fri Jun 21 16:14:38 2013
Date: Fri, 21 Jun 2013 16:14:07 -0400
From: "Majdi S. Abbas" <msa@latt.net>
To: Michael McConnell <michael@winkstreaming.com>
In-Reply-To: <8A50075E-018D-41C1-BDFD-61C3874EEDA9@winkstreaming.com>
Cc: North American Network Operators Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Fri, Jun 21, 2013 at 01:56:02PM -0600, Michael McConnell wrote:
> As the IPv4 space get smaller and smaller, does anyone think we'll see
> a time when /25's will be accepted for global BGP prefix announcement.
> The current smallest size is a /24 and generally ok for most people, but
> the crunch gets tighter, routers continue to have more and more ram will
> it always be /24 the smallest size?
RAM != FIB.
The forwarding hardware is generally going to be the limit, and
that's going to be painful enough as we approach a half million
prefixes.
You couldn't even consider such a thing until after that pain
point.
--msa
