nanog mailing list archives
Re: /25's prefixes announced into global routing table?
From: Jimmy Hess <mysidia () gmail com>
Date: Fri, 21 Jun 2013 18:22:11 -0500
On 6/21/13, Michael McConnell <michael () winkstreaming com> wrote:
Hello all, 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
I am confident there are providers that will accept /25s from some of their customer(s) or peer(s); either due to negotiations with some of their customer(s); or as a result of ignorance or administrative error (failing to reject /25s, and not realizing it).
current smallest size is a /24 and generally ok for most people, but the
Well, current smallest size intended to be accepted is /24 for many major providers. Some will be more restrictive. /24 is useful as a rule of thumb but not "an exact size" that every network allows. Further address fragmentation will eventually demand that networks become more restrictive, OR that the underlying protocol and hardware gets redesigned; which again, leads to netwroks becoming more restrictive, to avoid spending $$$ on hardware, software, and config upgrades.
crunch gets tighter, routers continue to have more and more ram will it always be /24 the smallest size?
Cheers, Mike
-- -JH
Current thread:
- Re: /25's prefixes announced into global routing table?, (continued)
- Re: /25's prefixes announced into global routing table? Owen DeLong (Jun 22)
- Re: /25's prefixes announced into global routing table? Patrick W. Gilmore (Jun 24)
- Re: /25's prefixes announced into global routing table? Arturo Servin (Jun 25)
- Re: /25's prefixes announced into global routing table? William Herrin (Jun 22)
- Re: /25's prefixes announced into global routing table? John Levine (Jun 21)
- Re: /25's prefixes announced into global routing table? Masataka Ohta (Jun 24)
- Re: /25's prefixes announced into global routing table? Grzegorz Janoszka (Jun 21)
- Re: /25's prefixes announced into global routing table? joel jaeggli (Jun 21)
- Re: /25's prefixes announced into global routing table? Owen DeLong (Jun 21)
- Re: /25's prefixes announced into global routing table? William Herrin (Jun 21)
- Re: /25's prefixes announced into global routing table? Jimmy Hess (Jun 21)
- Re: /25's prefixes announced into global routing table? ポール・ロラン (Jun 24)
- Re: /25's prefixes announced into global routing table? jim deleskie (Jun 24)
- Re: /25's prefixes announced into global routing table? Patrick W. Gilmore (Jun 24)
- Re: /25's prefixes announced into global routing table? Michael McConnell (Jun 24)
- Re: /25's prefixes announced into global routing table? Jimmy Hess (Jun 25)
- Re: /25's prefixes announced into global routing table? Valdis . Kletnieks (Jun 25)
- Re: /25's prefixes announced into global routing table? Jérôme Nicolle (Jun 24)
- Re: /25's prefixes announced into global routing table? Jakob Heitz (Jun 21)
- Re: /25's prefixes announced into global routing table? Daniel Suchy (Jun 22)
- Re: /25's prefixes announced into global routing table? Raymond Dijkxhoorn (Jun 22)
- Re: /25's prefixes announced into global routing table? Daniel Suchy (Jun 22)