nanog mailing list archives

Re: number of unaggregated class C's in swamp?


From: rrv () uiuc edu (Ross Veach)
Date: Fri, 29 Sep 1995 09:29:05 -0500

How did you account for longer prefixes that are covered by shorter ones?

Did you limit your study to the RADB, or did you use the whole IRR?

At 9:22 AM 9/29/95, Brian Renaud wrote:
Here is the breakdown of 198 in the radb, showing the number of
route objects registered in 198 for /14 through /24.

                       prefix length
prefix   14   15   16   17   18   19   20   21   22   23   24
------ ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
198.*    4    5   39    5   19   30   41   67   98  137 5314

-Brian

How would one go about determining how many /24 /23 ... /19 unaggregated
advertisements are in the swamp.  I assume it would have to be examined
by AS, and look for multiple paths to find multi-homed, but it should be
doable with the current database, shouldn't it?

Has someone already done this?  I asked Merit yesterday, and they don't
seem to have the tools.

Bill.Simpson () um cc umich edu
          Key fingerprint =  2E 07 23 03 C5 62 70 D3  59 B1 4F 5E 1D C2 C1 A2





Current thread: