|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: /24s run amuck again
I had a full /19 sliced and diced up into /24 until yesterday when I officially completed my data center migration. None appear in the list below. How recent is this information? Karyn :: -----Original Message----- :: From: Richard A. Steenbergen [mailto:[email protected]] :: Sent: Friday, June 08, 2001 12:51 AM :: To: [email protected] :: Subject: /24s run amuck again :: :: :: :: We all know that /24s have run amuck. According to the APNIC bgp :: statistics (http://www.apnic.net/stats/bgp) view of the internet, the :: current prefix distribution looks: :: :: Routing Table Report June 08, 2001 :: BGP routing table entries examined: 106727 :: :: Number of prefixes announced per prefix length (Global) :: ------------------------------------------------------- :: :: /1:0 /2:0 /3:0 /4:0 /5:0 :: /6:0 :: /7:0 /8:20 /9:5 /10:6 /11:9 :: /12:32 :: /13:77 /14:207 /15:346 /16:6905 /17:1175 :: /18:2174 :: /19:6720 /20:5247 /21:4509 /22:6779 /23:8684 :: /24:61402 :: /25:278 /26:450 /27:463 /28:489 /29:374 :: /30:317 :: /31:1 /32:58 :: :: This mean over 57% of the routing table consists of /24s. So :: in order to :: facilitate getting this fixed, I have prepared a list of the worst :: offenders and their specific blocks which (most likely) have :: no reason for :: not being aggregated. If all of these entries could be :: aggregated (and I'm :: certain this simple script missed some), it would reduce the :: routing table :: by over 29,000 entries, to less the 78k. I think it's pretty :: obvious that :: a lot of these simply have no excuse. :: :: :: http://www.e-gerbil.net/ras/projects/ipaddr/24amuck.txt :: :: :: A list of ASNs with the largest sized offending blocks (not :: overall count, :: #1 is UU #2 is BBN #3 is Telstra nothing unexpected there) is: :: :: 2711 - Rock Hill Telephone Company :: 8112 - Bell Atlantic Internet Solutions :: 701 - UUNet Technologies, Inc. :: 11371 - Rhythms NetConnections :: 226 - Los Nettos :: 7029 - Alltel Information Services, Inc. :: 18687 - MGC Communications, Inc. :: 6595 - DoD Education Activity Network Assistance Center :: 1677 - ANS Communications :: 1785 - AppliedTheory Corporation :: 1326 - Advanced Networks & Services Inc. :: 6499 - Brooks Fiber Properties, Inc. :: :: I highly encourage anyone interested to yell at these people. :: :: -- :: Richard A Steenbergen <[email protected]> :: http://www.e-gerbil.net/ras :: PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 :: D8 14 36 FE B6) :: :: :: ::
|