[110075] in North American Network Operators' Group
RE: What is the most standard subnet length on internet
daemon@ATHENA.MIT.EDU (Tomas L. Byrnes)
Tue Dec 23 14:12:23 2008
Date: Tue, 23 Dec 2008 11:12:13 -0800
In-Reply-To: <982D8D05B6407A49AD506E6C3AC8E7D6BFEEA2A5A5@caralain.haven.nynaeve.net>
From: "Tomas L. Byrnes" <tomb@byrneit.net>
To: "Skywing" <Skywing@valhallalegends.com>, <Valdis.Kletnieks@vt.edu>,
"Nathan Ward" <nanog@daork.net>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
What I was describing is filtering the announcements of /24s that are
part of larger allocations. Not filtering the announcements of "The
Swamp".
>-----Original Message-----
>From: Skywing [mailto:Skywing@valhallalegends.com]
>Sent: Monday, December 22, 2008 7:08 PM
>To: Valdis.Kletnieks@vt.edu; Nathan Ward
>Cc: nanog list
>Subject: RE: What is the most standard subnet length on internet
>
>Snarky replies aside, it might be interesting to hear if there are any
>real examples of this being done intentionally and not out of not
>knowing better or otherwise configuration error. For example, Tomas
>Byrnes's suggestion re: hijacking; although, I suspect that in that
>case, he's speaking of someone doing this filtering on a one-off basis
>and not on all /24's in the DFZ.
>
>- S
>
>-----Original Message-----
>From: Valdis.Kletnieks@vt.edu [mailto:Valdis.Kletnieks@vt.edu]
>Sent: Monday, December 22, 2008 10:05 PM
>To: Nathan Ward
>Cc: nanog list
>Subject: Re: What is the most standard subnet length on internet
>
>On Tue, 23 Dec 2008 14:44:46 +1300, Nathan Ward said:
>
>> Why are people doing this? Are they lacking clue, or, is there some
>> reasonable purpose?
>
>The total number of routing cluons is apparently a fixed quantity. The
>number of AS's is known to be increasing. Do the math.
>
