[110056] in North American Network Operators' Group
Re: What is the most standard subnet length on internet
daemon@ATHENA.MIT.EDU (Seth Mattinen)
Mon Dec 22 19:31:57 2008
Date: Mon, 22 Dec 2008 16:31:52 -0800
From: Seth Mattinen <sethm@rollernet.us>
To: NANOG list <nanog@nanog.org>
In-Reply-To: <10068989.128811229991024019.JavaMail.weblogic@epml06>
Errors-To: nanog-bounces@nanog.org
정치영 wrote:
> Hi all,
>
> I appreciate many people gave me advices,
> Some of persons asked me about my questions, I'm sorry for that I couldn't reply to everyone.
> Because of your help, I could get many opinions and standards regarding IP allocation policy.
>
> by the way, in APNIC's IP allocation sizes policy, there is a comments like below.
> "Below are the minimum sizes for allocations and assignments, This information is provided at the request of the ISP community
> to assist in filtering policy decisions "
> Currently, is there any provider filtering routes under LIR's minimum allocation size such as /22 ?
>
Anyone running a platform that can't take a full table would apply such
a filter to weed out anyone who likes to announce all of their space as
/24's for "traffic engineering". If one does that and doesn't announce
the aggregate as well, one could find themselves facing random black holes.
~Seth
