North American Network Operators Group
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Re: What is the most standard subnet length on internet

  • From: Seth Mattinen
  • Date: Mon Dec 22 20:25:06 2008
Nathan Ward wrote:
On 23/12/2008, at 1:31 PM, Seth Mattinen wrote:
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.


People are filtering /24s without a 0/0 route?


I was just referring to LIR boundaries, but yes, I've seen it happen where someone splits their /22 into only /24s and doesn't announce the covering /22.

~Seth