Now, to create another sub-thread on this subject... Bradley Dunn wrote:
Now I don't run anything nearing a real router, so I checked route-server.cerf.net, and sure enough they are being advertised as /24s. I realize renumbering the root servers is not really a good place to start.:-) Yet I think it shows what a massive task we have ahead of us, if we are to make progress in aggregating 192/8.
The massive task of aggregation is not only in 192/8. Earlier today I took a dump of the BGP routing table on the above mentioned router (thanks to CERFnet!) and threw it at one of my Perl scripts which produces a report showing the distribution of prefix lengths for announced routes in each individual /8 block within the "class C" address space. The result is attached below. Note that the two "100% announced" entries are due to a well known jester announcing a couple of /8s... I will however here repeat the summary for all of the "class C" routes which shows the total number and the distribution over prefix lengths: All >=24 /23 /22 /21 /20 /19 /18 /17 /16 </16 #Rts 33220 24504 2388 1785 1170 933 918 486 226 642 168 Anyone for "War on /24"? (Oh, well, probably a lost cause before it got started...) - Havard Block #Rts >=/24 /23 /22 /21 /20 /19 /18 /17 /16 </16 As/rt % of spc 192 6446 5466 451 239 118 74 39 13 7 39 0 826 31.76 193 1911 1200 223 143 95 72 78 14 5 51 30 5299 60.36 194 2439 1609 226 146 88 56 146 35 20 99 14 4691 68.20 195 138 45 4 2 2 6 35 5 6 32 1 20288 16.69 196 375 266 33 30 15 10 4 3 1 11 2 44739 100.00 197 2 1 0 0 0 0 0 0 0 0 1 8388K 100.00 198 3965 3327 206 128 101 50 52 24 4 58 15 2113 49.94 199 3885 3285 174 111 95 66 39 38 18 46 13 2324 53.83 200 920 763 43 33 22 21 16 6 3 9 4 5252 28.80 201 0 0 0 0 0 0 0 0 0 0 0 0 0.00 202 1556 718 228 204 125 110 56 66 19 25 5 3787 35.12 203 1444 902 146 127 47 57 56 40 34 33 2 5852 50.38 204 3690 2817 216 138 131 124 86 58 22 78 20 2996 65.90 205 2151 1628 132 108 86 67 38 26 7 38 21 4550 58.34 206 2454 1392 183 230 137 132 177 68 31 78 26 5384 78.76 207 1164 665 61 69 60 57 81 87 34 40 10 6791 47.12 208 671 420 62 76 48 29 14 1 14 3 4 2972 11.89 209 0 0 0 0 0 0 0 0 0 0 0 0 0.00 210 9 0 0 1 0 2 1 2 1 2 0 23779 1.28 #Rts 33220 24504 2388 1785 1170 933 918 486 226 642 168 All >=24 /23 /22 /21 /20 /19 /18 /17 /16 </16