[109998] in North American Network Operators' Group
Re: Re: What is the most standard subnet length on internet
daemon@ATHENA.MIT.EDU (Patrick W. Gilmore)
Fri Dec 19 07:09:06 2008
From: "Patrick W. Gilmore" <patrick@ianai.net>
To: "Darryl Dunkin" <ddunkin@netos.net>
In-Reply-To: <56F5BC5F404CF84896C447397A1AAF20B0F7D4@MAIL.nosi.netos.com>
Date: Fri, 19 Dec 2008 07:07:26 -0500
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
Even if a longer prefix like a /24 is announced, chances of people
accepting it is slim. Especially, as you say, if the RIR allocation
is something larger than /24
And I have a feeling acceptance /24 route announcements of anything
other than legacy classful space, infrastructure space like the root
servers is going to be patchy at best.
2008/12/19 Darryl Dunkin <ddunkin@netos.net>:
>
> If you are allocated a /22, announce the /22. Do not announce
> anything longer unless you have a requirement to (such as a
> different origin AS). If you are further allocating a subset of that
> to a downstream, then a /24 out of that is acceptable as the origin
> will be different.
>
