RIS Statistics Report (20070319-20070326) This report was generated at Mon Mar 26 00:15:01 UTC 2007. It analyses the BGP Routing Tables which are collected by RIS Remote Collectors at different locations around the world. Check http://www.ris.ripe.net/weekly-report/ for more info. o Prefix Distribution RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 APNIC 48720 47287 46576 9710 48010 40644 45559 20191 46691 40541 47191 46984 46439 43214 25700 ARIN 79529 78253 77640 10074 78418 67631 77996 21605 77495 63033 77583 77841 77934 72895 39886 LACNIC 15045 12508 12473 4012 12534 10618 12569 8730 12483 10215 12475 12509 12517 10945 10891 RIPE NCC 46749 43263 43345 8809 44527 39557 43493 23497 44061 31121 42902 43605 43243 41620 29371 AfriNIC 332 326 331 160 331 325 331 233 331 303 331 331 331 331 295 Old 41362 39957 38779 5281 39276 35961 38826 12995 38207 29998 38123 38879 38752 36921 18180 IANA 127 70 69 2 69 65 53 55 53 45 69 53 53 68 98 RFC1918 3 0 0 0 3 0 0 0 0 0 1 1 1 0 0 OTHER 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 TOTAL 231868 221664 219213 38048 223169 194801 218827 87306 219321 175256 218675 220203 219270 205994 124421 ER 1 AS number distributions wrt RIR and single-homed/multi-homed. o ASes per RIR region RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 ARIN 12427 12391 12330 3114 12414 11611 12380 5749 12316 10325 12317 12403 12351 11691 7596 APNIC 2891 2884 2855 858 2884 2579 2859 1709 2865 2596 2866 2863 2851 2728 2040 RIPE NCC 9442 9392 9405 3056 9422 8843 9265 6237 9399 7520 9380 9416 9408 9276 7056 LACNIC 299 298 291 127 297 264 296 230 291 265 291 295 296 284 237 AFRINIC 44 44 44 15 44 43 44 36 44 38 44 44 44 44 35 IANA 2 1 1 0 1 1 1 1 1 1 1 1 1 1 2 Private 74 49 46 1 57 23 37 19 42 13 30 34 40 20 18 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 25181 25061 24974 7171 25121 23366 24884 13981 24960 20760 24931 25058 24993 24046 16984 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 ARIN 3712 4643 4298 2318 3976 5862 5372 2620 4688 5712 4852 4732 4837 5276 3380 APNIC 778 958 895 593 881 1132 1116 710 977 1329 961 991 1023 1009 915 RIPE NCC 2708 3352 3114 2098 2948 3960 3591 2749 3386 3424 3780 3617 3370 3834 2913 LACNIC 123 137 128 94 128 139 139 127 141 142 140 133 136 141 118 AFRINIC 23 24 25 11 24 26 26 19 26 21 26 26 25 26 18 IANA 2 1 1 0 1 1 1 1 1 1 1 1 1 1 2 Private 50 30 35 1 39 15 21 12 33 11 21 22 28 15 14 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 7396 9145 8496 5115 7997 11135 10266 6238 9252 10640 9782 9522 9420 10303 7360 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 ARIN 8715 7748 8032 796 8438 5749 7008 3129 7628 4613 7465 7671 7514 6415 4216 APNIC 2113 1926 1960 265 2003 1447 1743 999 1888 1267 1905 1872 1828 1719 1125 RIPE NCC 6734 6040 6291 958 6474 4883 5674 3488 6013 4096 5600 5799 6038 5442 4143 LACNIC 176 161 163 33 169 125 157 103 150 123 151 162 160 143 119 AFRINIC 21 20 19 4 20 17 18 17 18 17 18 18 19 18 17 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 24 19 11 0 18 8 16 7 9 2 9 12 12 5 4 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 17785 15916 16478 2056 17124 12231 14618 7743 15708 10120 15149 15536 15573 13743 9624 IANA : AS65535 AS47202 Number of 4-byte ASes: 2. Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 Leaf 20940 21016 20930 5556 20996 19634 20927 10956 21031 17323 21022 21060 21063 20168 13738 Transit 4131 3941 3922 619 4016 3519 3837 2273 3821 3090 3800 3886 3824 3695 2685 Transit-only 126 118 128 998 122 223 133 755 115 353 116 121 115 192 566 Total 25197 25075 24980 7173 25134 23376 24897 13984 24967 20766 24938 25067 25002 24055 16989 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc13 rrc14 rrc15 Avg 6.31 6.54 5.87 5.43 6.08 6.04 6.19 6.17 6.45 5.93 5.97 6.35 6.96 5.95 7.17 Std 2.63 2.69 2.54 2.20 2.62 2.53 2.51 2.51 2.78 2.52 2.58 2.73 2.48 2.74 2.44 o List of martians appearing throughout the week. Prefix Origin AS 10.250.250.0/24 23352 172.16.63.28/30 8359 192.0.2.0/24 2854 o List of hot-spots during the week. Prefix Origin AS Number of updates 62.24.238.0/24 13285 628960 80.243.64.0/20 21332 526596 12.170.126.0/24 33188 457554 64.201.12.0/24 33188 447614 193.17.172.0/24 31026 377545 194.26.22.0/23 15536 355629 12.106.30.0/24 22072 317682 62.204.228.0/23 34040 267011 208.14.186.0/24 22140 239489 212.252.196.0/24 31307 238342 Total number of RIS BGP peering sessions: 575