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RIS Statistics Report
by Generic RIS account 05 Apr '05

05 Apr '05

RIS Statistics Report (20050328-20050404) This report was generated at Mon Apr 4 00:15:01 UTC 2005. 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 rrc14 APNIC 30558 30153 29768 164 29891 29579 29498 29929 29588 29055 15791 29068 29554 ARIN 63419 62427 61905 807 62478 62082 58919 62363 62581 61369 19637 60892 62334 LACNIC 8277 7234 7198 928 8005 7234 7021 7097 7229 7196 4671 6874 7213 RIPE NCC 29748 27658 26547 6046 28279 25981 23598 25387 25538 25885 12740 25953 25694 OLD 33991 32686 31830 1020 33408 32564 30800 32435 32223 31678 10261 31616 32408 IANA 5303 4435 4296 735 5081 4395 4146 4325 4239 4279 2148 4177 4288 RFC1918 17 11 0 0 5 5 0 0 0 0 0 0 1 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 171313 164604 161544 9700 167147 161840 153982 161536 161398 159462 65248 158580 161492 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 rrc14 ARIN 10777 10712 10669 335 10695 10724 10296 10646 10675 10634 5066 10597 10712 APNIC 2212 2196 2198 22 2196 2195 2182 2174 2172 2173 1386 2165 2183 RIPE NCC 6508 6446 6489 2383 6477 6478 5919 6443 6322 6473 4046 6442 6458 LACNIC 112 112 108 9 110 112 110 111 110 107 77 107 110 IANA 6 6 5 0 3 5 5 6 5 5 5 1 5 Private 68 42 24 4 29 22 22 11 33 15 12 15 29 Others 1 1 1 0 1 1 1 1 1 1 0 1 1 Total 19684 19515 19494 2753 19511 19537 18535 19392 19318 19408 10592 19328 19498 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3220 3755 3777 218 3662 4874 4326 6128 4886 4833 2256 4824 6316 APNIC 657 773 799 16 753 1042 849 1324 947 1054 601 1004 1112 RIPE NCC 1832 2298 2214 1461 2106 2910 2371 4074 2504 2863 1677 2645 3656 LACNIC 49 51 52 8 56 63 56 69 60 55 46 66 67 IANA 5 6 4 0 3 5 5 6 5 5 5 1 5 Private 50 32 12 1 20 15 12 9 24 8 7 11 21 Others 0 0 0 0 0 0 0 0 0 0 0 1 0 Total 5813 6915 6858 1704 6600 8909 7619 11610 8426 8818 4592 8552 11177 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7557 6957 6892 117 7033 5850 5970 4518 5789 5801 2810 5773 4396 APNIC 1555 1423 1399 6 1443 1153 1333 850 1225 1119 785 1161 1071 RIPE NCC 4676 4148 4275 922 4371 3568 3548 2369 3818 3610 2369 3797 2802 LACNIC 63 61 56 1 54 49 54 42 50 52 31 41 43 IANA 1 0 1 0 0 0 0 0 0 0 0 0 0 Private 18 10 12 3 9 7 10 2 9 7 5 4 8 Others 1 1 1 0 1 1 1 1 1 1 0 0 1 Total 13871 12600 12636 1049 12911 10628 10916 7782 10892 10590 6000 10776 8321 IANA : AS64500 AS35871 AS35857 AS35868 AS64000 AS35864 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16325 16333 16335 2037 16343 16493 15460 16679 16299 16410 8249 16442 16571 Transit 3238 3056 3050 476 3065 2946 2904 2629 2895 2897 1702 2807 2827 Transit-only 121 126 109 240 103 98 171 84 124 101 641 79 100 Total 19684 19515 19494 2753 19511 19537 18535 19392 19318 19408 10592 19328 19498 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 5.92 6.23 5.82 5.19 5.62 6.23 5.98 5.81 6.42 5.80 6.42 4.63 5.98 Std 2.55 2.61 2.62 2.90 2.38 2.67 2.61 2.30 2.70 2.46 2.65 1.75 3.08 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.49.0/24 2706 310171 83.219.160.0/19 34694 304297 202.64.40.0/24 2706 258879 216.243.234.0/23 10970 149662 199.181.158.0/23 4595 140544 198.76.142.0/24 21617 99851 198.76.42.0/24 21617 81828 198.76.141.0/24 21617 81059 198.76.43.0/24 21617 80018 209.114.254.0/24 14359 69625 Total number of RIS BGP peering sessions: 487

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RIS Statistics Report
by Generic RIS account 28 Mar '05

28 Mar '05

RIS Statistics Report (20050321-20050328) This report was generated at Mon Mar 28 00:15:01 UTC 2005. 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 rrc14 APNIC 30553 30054 27286 0 30046 29518 29551 30055 29457 15419 16927 27554 23426 ARIN 62766 62273 41942 0 62414 61566 61605 61998 61301 30070 21809 58951 23422 LACNIC 8048 7005 5584 0 8025 6960 6976 7001 6938 4144 3843 6622 3086 RIPE NCC 28563 26070 21449 0 27623 25666 25560 25461 24760 18340 12690 24967 14776 OLD 33761 32903 22032 0 33394 32383 32214 32350 31167 17496 10894 30772 13825 IANA 4999 4139 3299 0 4894 4106 4002 4081 3967 3026 2003 3767 2158 RFC1918 15 7 2 0 5 7 0 0 0 0 0 0 1 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 168705 162451 121594 0 166401 160206 159908 160946 157590 88495 68166 152633 80694 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 rrc14 ARIN 10764 10742 8568 245 10712 10726 10719 10637 10605 6907 5384 10337 5981 APNIC 2208 2190 2100 16 2198 2190 2184 2177 2164 1541 1391 2139 1967 RIPE NCC 6480 6452 5715 2200 6467 6452 6452 6418 6194 5095 4105 6301 4762 LACNIC 111 111 93 7 109 111 111 109 107 83 60 96 69 IANA 2 2 1 0 2 2 2 2 1 1 1 2 1 Private 57 34 14 1 30 24 17 13 27 8 9 15 22 Others 1 1 1 0 1 1 1 1 1 1 0 1 1 Total 19623 19532 16492 2469 19519 19506 19486 19357 19099 13636 10950 18891 12803 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3244 3788 4337 146 3473 4347 4486 6594 4790 3603 2598 4995 2611 APNIC 641 787 866 14 693 831 814 1273 857 706 649 875 821 RIPE NCC 1836 2329 2362 1299 1976 2554 2531 3791 2270 2284 1706 2823 2091 LACNIC 53 57 59 7 55 63 66 75 64 53 38 61 43 IANA 2 2 1 0 2 2 2 2 1 1 1 2 1 Private 42 23 8 1 22 16 11 9 22 5 5 11 19 Others 0 1 1 0 0 1 1 1 1 1 0 1 1 Total 5818 6987 7634 1467 6221 7814 7911 11745 8005 6653 4997 8768 5587 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7520 6954 4231 99 7239 6379 6233 4043 5815 3304 2786 5342 3370 APNIC 1567 1403 1234 2 1505 1359 1370 904 1307 835 742 1264 1146 RIPE NCC 4644 4123 3353 901 4491 3898 3921 2627 3924 2811 2399 3478 2671 LACNIC 58 54 34 0 54 48 45 34 43 30 22 35 26 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 15 11 6 0 8 8 6 4 5 3 4 4 3 Others 1 0 0 0 1 0 0 0 0 0 0 0 0 Total 13805 12545 8858 1002 13298 11692 11575 7612 11094 6983 5953 10123 7216 IANA : AS64500 AS40439 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16270 16367 13592 1797 16270 16418 16327 16616 16125 11043 8626 15944 10202 Transit 3235 3056 2627 430 3139 2990 3061 2654 2854 2173 1723 2819 2136 Transit-only 118 109 273 242 110 98 98 87 120 420 601 128 465 Total 19623 19532 16492 2469 19519 19506 19486 19357 19099 13636 10950 18891 12803 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.00 6.15 5.99 5.11 5.91 6.02 5.87 5.98 6.19 6.18 6.28 5.80 6.15 Std 2.52 2.52 2.59 2.67 2.49 2.41 2.53 2.28 2.49 2.53 2.48 2.48 3.09 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.49.0/24 2706 414676 202.64.40.0/24 2706 409425 83.219.160.0/19 34694 385414 198.80.137.0/24 22488 317021 198.80.157.0/24 22488 316891 216.243.234.0/23 10970 212171 199.181.158.0/23 4595 156621 204.201.21.0/24 20096 100615 207.168.184.0/24 32832 95735 198.76.142.0/24 21617 73512 Total number of RIS BGP peering sessions: 487

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RIS Statistics Report
by Generic RIS account 21 Mar '05

21 Mar '05

RIS Statistics Report (20050314-20050321) This report was generated at Mon Mar 21 00:15:02 UTC 2005. 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 rrc14 APNIC 32184 31791 30353 153 30870 29015 20552 31629 29633 24652 11259 30339 12793 ARIN 63949 62329 61606 639 62359 61404 22372 62029 61588 48492 16277 62861 17528 LACNIC 8027 6986 6963 572 8006 6928 3978 6974 6963 6417 2710 6963 3660 RIPE NCC 27647 26265 26257 5475 27248 23759 16860 25469 25191 17452 13062 26574 13147 OLD 34064 33190 31822 886 33203 31211 14675 32671 31683 25350 8800 32355 10657 IANA 4200 4088 3993 460 4150 3954 2266 3999 3932 2432 1675 4002 1737 RFC1918 15 8 0 0 7 5 0 0 0 0 0 0 1 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 170086 164657 160994 8185 165843 156276 80703 162771 158990 124795 53783 163094 59523 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 rrc14 ARIN 10747 10721 10634 280 10685 10617 5870 10616 10592 9553 4470 8400 5000 APNIC 2203 2191 2176 18 2197 2161 1713 2174 2158 1805 1181 2109 1253 RIPE NCC 6447 6427 6431 2255 6438 6012 5124 6391 6161 5022 4139 5830 4357 LACNIC 107 107 103 8 106 107 80 106 103 94 60 91 79 IANA 3 3 3 0 3 3 2 3 3 3 2 2 2 Private 58 32 16 2 27 21 16 12 31 6 11 16 18 Others 1 1 1 0 1 1 1 1 1 1 0 1 1 Total 19566 19482 19364 2563 19457 18922 12806 19303 19049 16484 9863 16449 10710 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3213 3661 3856 189 3536 4696 2073 6259 4928 5457 2006 3650 2188 APNIC 617 773 749 15 676 1006 693 1226 867 858 487 914 479 RIPE NCC 1851 2408 2192 1362 2015 2844 1929 3819 2298 2225 1806 2205 1885 LACNIC 45 48 46 7 47 58 40 64 52 50 28 45 38 IANA 3 3 3 0 3 3 2 3 3 3 2 2 2 Private 43 21 12 1 19 13 12 11 23 4 6 14 17 Others 0 1 0 0 0 1 0 1 0 1 0 0 1 Total 5772 6915 6858 1574 6296 8621 4749 11383 8171 8598 4335 6830 4610 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7534 7060 6778 91 7149 5921 3797 4357 5664 4096 2464 4750 2812 APNIC 1586 1418 1427 3 1521 1155 1020 948 1291 947 694 1195 774 RIPE NCC 4596 4019 4239 893 4423 3168 3195 2572 3863 2797 2333 3625 2472 LACNIC 62 59 57 1 59 49 40 42 51 44 32 46 41 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 15 11 4 1 8 8 4 1 8 2 5 2 1 Others 1 0 1 0 1 0 1 0 1 0 0 1 0 Total 13794 12567 12506 989 13161 10301 8057 7920 10878 7886 5528 9619 6100 IANA : AS64500 AS61972 AS40439 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16221 16303 16219 1878 16213 15933 10081 16541 16054 13759 7597 13534 8269 Transit 3223 3065 3037 451 3131 2850 2238 2672 2878 2407 1648 2672 1866 Transit-only 122 114 108 234 113 139 487 90 117 318 618 243 575 Total 19566 19482 19364 2563 19457 18922 12806 19303 19049 16484 9863 16449 10710 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.08 6.09 5.65 5.02 6.04 6.24 6.21 5.98 6.23 5.94 6.28 6.26 6.26 Std 2.53 2.47 2.46 2.60 2.50 2.51 2.65 2.27 2.47 2.44 2.45 2.74 3.00 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.40.0/24 2706 409675 202.64.159.0/24 2706 408669 202.64.49.0/24 2706 276958 198.80.137.0/24 22488 260904 198.80.157.0/24 22488 260821 216.243.234.0/23 10970 254691 198.76.141.0/24 21617 122058 198.76.142.0/24 21617 120062 207.168.184.0/24 32832 116579 198.76.42.0/24 21617 80539 Total number of RIS BGP peering sessions: 488

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RIS Statistics Report
by Generic RIS account 14 Mar '05

14 Mar '05

RIS Statistics Report (20050307-20050314) This report was generated at Mon Mar 14 00:15:01 UTC 2005. 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 rrc14 APNIC 30454 30170 29258 170 29551 29346 29211 29777 29280 28952 24701 29337 14059 ARIN 62642 61987 61613 468 61999 61642 58798 61960 61329 60798 55248 61679 25008 LACNIC 8013 6967 6948 713 7988 6968 6941 6969 6948 6931 6766 6964 3330 RIPE NCC 27574 25643 25644 5309 26607 25290 24193 25198 25462 23316 17980 25492 13871 OLD 34107 32946 32163 905 33663 32899 31886 32799 32245 31515 27986 32517 12537 IANA 4762 3884 3799 558 4747 3867 3716 3814 3808 3141 3159 3826 1958 RFC1918 8 6 1 0 0 6 0 0 0 0 0 0 1 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 167560 161603 159426 8123 164555 160018 154745 160517 159072 154653 135840 159815 70764 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 rrc14 ARIN 10718 10688 10615 278 10678 10680 10337 10604 10602 10428 9817 10653 6341 APNIC 2195 2179 2171 20 2180 2172 2172 2164 2155 2111 1809 2176 1446 RIPE NCC 6411 6389 6389 2150 6397 6382 6207 6358 6379 6002 4807 6324 4453 LACNIC 106 106 102 6 105 106 105 105 102 102 101 104 78 IANA 2 2 2 0 2 2 2 2 2 2 2 2 2 Private 59 26 15 4 30 17 20 13 38 14 8 23 20 Others 1 1 1 0 1 1 1 1 1 1 0 1 1 Total 19492 19391 19295 2458 19393 19360 18844 19247 19279 18660 16544 19283 12341 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3128 3703 4066 181 3367 4495 4341 6197 4056 6000 5311 4493 3187 APNIC 619 760 756 15 673 1006 801 1234 800 1106 905 885 655 RIPE NCC 1798 2437 2458 1254 2072 2894 2355 3720 2366 2711 2265 2305 1954 LACNIC 46 50 47 5 45 56 52 67 47 57 60 48 48 IANA 2 2 2 0 2 2 2 2 2 2 2 2 2 Private 47 20 10 1 20 9 10 9 30 9 4 15 16 Others 0 0 0 0 0 0 1 1 0 0 0 0 1 Total 5640 6972 7339 1456 6179 8462 7562 11230 7301 9885 8547 7748 5863 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7590 6985 6549 97 7311 6185 5996 4407 6546 4428 4506 6160 3154 APNIC 1576 1419 1415 5 1507 1166 1371 930 1355 1005 904 1291 791 RIPE NCC 4613 3952 3931 896 4325 3488 3852 2638 4013 3291 2542 4019 2499 LACNIC 60 56 55 1 60 50 53 38 55 45 41 56 30 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 12 6 5 3 10 8 10 4 8 5 4 8 4 Others 1 1 1 0 1 1 0 0 1 1 0 1 0 Total 13852 12419 11956 1002 13214 10898 11282 8017 11978 8775 7997 11535 6478 IANA : AS64500 AS40439 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16137 16256 16174 1768 16149 16315 15728 16484 16226 15762 13901 16120 9823 Transit 3234 3020 3010 431 3127 2935 2974 2663 2937 2765 2315 3036 2009 Transit-only 121 115 111 259 117 110 142 100 116 133 328 127 509 Total 19492 19391 19295 2458 19393 19360 18844 19247 19279 18660 16544 19283 12341 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.11 5.99 5.73 5.07 6.22 6.23 5.99 6.03 6.10 5.86 5.98 6.11 6.15 Std 2.57 2.51 2.51 2.54 2.56 2.59 2.61 2.30 2.47 2.42 2.23 2.73 3.07 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.159.0/24 2706 422988 202.64.49.0/24 2706 422723 202.64.40.0/24 2706 349279 193.73.62.0/24 6730 266906 216.243.234.0/23 10970 255516 212.124.229.0/24 20995 188385 212.124.230.0/24 20995 186450 212.124.231.0/24 20995 173658 167.94.0.0/16 22413 125576 207.168.184.0/24 32832 118121 Total number of RIS BGP peering sessions: 489

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RIS Statistics Report
by Generic RIS account 07 Mar '05

07 Mar '05

RIS Statistics Report (20050228-20050307) This report was generated at Mon Mar 7 00:15:01 UTC 2005. 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 rrc14 APNIC 30517 30336 29036 154 29505 28536 29312 29434 27639 28804 25359 29150 29341 ARIN 62704 62231 61114 414 62045 60926 61913 62091 59222 60948 55781 61181 61664 LACNIC 6919 6903 6884 667 6900 6474 6919 6900 6205 6856 6566 6884 6884 RIPE NCC 30559 25842 25534 6554 29890 24335 26017 25226 23881 25253 19753 26018 25148 OLD 35243 33157 31858 1103 34833 32099 32727 32637 30345 31821 28444 32093 32486 IANA 3803 3724 3630 637 3794 3620 3629 3681 3470 3610 3155 3711 3623 RFC1918 19 8 3 0 7 6 0 0 0 0 0 0 1 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 169764 162201 158059 9529 166974 155996 160517 159969 150762 157292 139058 159037 159147 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 rrc14 ARIN 10727 10704 10602 266 10673 10612 10677 10590 10385 10579 9838 10611 10650 APNIC 2195 2184 2168 16 2188 2123 2178 2163 2138 2161 1809 2172 2171 RIPE NCC 6392 6373 6369 2465 6381 6236 6371 6339 6048 6355 5144 6374 6348 LACNIC 105 105 100 8 104 104 105 103 95 100 92 100 102 IANA 1 1 1 0 1 1 1 1 1 1 1 1 1 Private 58 39 15 6 24 18 22 11 24 12 5 20 20 Others 1 1 1 0 1 1 1 1 1 1 0 1 1 Total 19479 19407 19256 2761 19372 19095 19355 19208 18692 19209 16889 19279 19293 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3186 3382 4357 170 3533 4559 4276 6426 4433 4968 5036 4142 6117 APNIC 606 679 857 13 691 830 801 1256 892 1052 865 891 993 RIPE NCC 1689 2045 2487 1470 1935 2508 2138 3715 2334 2428 2430 2180 3346 LACNIC 48 50 55 6 49 60 55 69 50 53 56 53 67 IANA 1 1 1 0 1 1 1 1 1 1 1 1 1 Private 50 31 9 3 18 12 16 9 19 6 4 14 18 Others 0 0 0 0 0 1 1 1 1 1 0 1 1 Total 5580 6188 7766 1662 6227 7971 7288 11477 7730 8509 8392 7282 10543 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7541 7322 6245 96 7140 6053 6401 4164 5952 5611 4802 6469 4533 APNIC 1589 1505 1311 3 1497 1293 1377 907 1246 1109 944 1281 1178 RIPE NCC 4703 4328 3882 995 4446 3728 4233 2624 3714 3927 2714 4194 3002 LACNIC 57 55 45 2 55 44 50 34 45 47 36 47 35 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 8 8 6 3 6 6 6 2 5 6 1 6 2 Others 1 1 1 0 1 0 0 0 0 0 0 0 0 Total 13899 13219 11490 1099 13145 11124 12067 7731 10962 10700 8497 11997 8750 IANA : AS65535 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16122 16181 16180 2028 16131 16053 16192 16469 15730 16204 14201 16157 16386 Transit 3235 3104 2958 497 3125 2917 3055 2646 2786 2901 2386 3010 2804 Transit-only 122 122 118 236 116 125 108 93 176 104 302 112 103 Total 19479 19407 19256 2761 19372 19095 19355 19208 18692 19209 16889 19279 19293 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.10 6.01 5.86 5.08 6.20 6.22 5.81 6.04 6.52 5.69 6.17 6.03 5.84 Std 2.52 2.41 2.43 2.67 2.55 2.57 2.56 2.29 2.49 2.28 2.23 2.60 2.76 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.40.0/24 2706 496316 202.64.49.0/24 2706 492897 202.64.159.0/24 2706 346918 193.73.62.0/24 6730 277522 216.243.234.0/23 10970 274299 194.107.24.0/24 31152 162813 209.114.254.0/24 14359 156129 219.64.224.0/23 4755 142985 207.168.184.0/24 32832 142370 167.94.0.0/16 22413 115486 Total number of RIS BGP peering sessions: 488

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Heads up: Long AS-sets announced in the next few days
by Lorenzo Colitti 03 Mar '05

03 Mar '05

Hi, as announced to the RIPE routing working group mailing list [1] and elsewhere, over the next few days the Computer Networks research group at Roma Tre University, in collaboration with the RIPE NCC RIS project, will be performing experiments involving announcements with large AS-sets in the AS-path. We are doing this to test innovative network discovery methodologies we developed to allow ISPs to determine how their prefixes are seen by the rest of the Internet. The announcements will be for prefixes 84.205.73.0/24 and 84.205.89.0/24 and will originate in AS12654. We have been performing similar experiments over IPv6, in collaboration with the NAMEX internet exchange, since December 2004 with no ill effects; furthermore, our announcements are standard BGP, so conformant implementations should be able to process them, and very long AS-sets have already been observed in the past (e.g. [2], [3]). However, we want to be careful to avoid router bugs on legacy devices, old firmware versions and the like, so we are first sending out test announcements with progressively longer AS-sets. Should you encounter a problem with these advertisements, please let us know and we will withdraw them. The proposed timetable of the test announcements is as follows. 2005-03-04: 14:00 UTC: 10-element AS-set 14:30 UTC: withdrawal 16:00 UTC: 25-element AS-set 16:30 UTC: withdrawal and, if there are no problems: 2005-03-07: 14:00 UTC: 50-element AS-set 14:30 UTC: withdrawal 16:00 UTC: 100-element AS-set 16:30 UTC: withdrawal Note: For reference, the AS-sets already observed in [2] and [3] contained 123 and 124 ASes respectively. For questions/comments, please contact compunet(a)dia.uniroma3.it or lorenzo(a)ripe.net. Regards, Lorenzo Colitti On behalf of the Roma Tre Computer Networks Research group [1] http://www.ripe.net/ripe/maillists/archives/routing-wg/2005/msg00021.html [2] http://www.ripe.net/projects/ris/Talks/0101_RIPE38_AA/sld003.html [3] http://www.ripe.net/maillists/ncc-archives/ris-users/2002/msg00044.html

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RE: Heads up: Long AS-sets announced in the next few days
by Hallgren, Michael 02 Mar '05

02 Mar '05

Idem 6453. Thanks ;) mh > -----Message d'origine----- > De : James A. T. Rice [mailto:james_r-ripelist@jump.org.uk] > Envoyé : mercredi 2 mars 2005 13:38 > À : Lorenzo Colitti > Cc : Gert Doering; nanog(a)merit.edu; routing-wg(a)ripe.net; > ris-users(a)ripe.net; compunet(a)dia.uniroma3.it > Objet : Re: Heads up: Long AS-sets announced in the next few days > > > This seems to suggest that you are just picking ASns at > random to inject > into the paths, and that you don't have a set of ASs which > you have the > assignees permission to use. > > In which case please keep AS8330, AS8550, and AS8943 out of your > experiments too. > > Using not yet allocated ASns out of RIPEs asn-blocks would > have been more > sensible, IMHO. > > Regards > James > > On Wed, 2 Mar 2005, Lorenzo Colitti wrote: > > > Gert Doering wrote: > >>> 2005-03-04: > >>> 14:00 UTC: 10-element AS-set > >>> 14:30 UTC: withdrawal > >>> 16:00 UTC: 25-element AS-set > >>> 16:30 UTC: withdrawal > >> > >> Please do not announce AS-sets that contain 5539. We are > not part of > >> your experiment, and we don't want to see our AS appear in > other people's > >> router error messages. > > > > Ok, no problem: we will not include AS 5539 in any of the > AS-sets we > > announce. > > > > > > Regards, > > Lorenzo > > > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2005-02-22 > > -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2005-02-22

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RIS Statistics Report
by Generic RIS account 28 Feb '05

28 Feb '05

RIS Statistics Report (20050221-20050228) This report was generated at Mon Feb 28 00:15:01 UTC 2005. 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 rrc14 APNIC 29959 29696 28518 149 29249 28911 29038 29433 25095 19716 12969 29168 28858 ARIN 67202 65823 58685 453 62368 61849 62123 62171 54443 29983 18925 62543 61609 LACNIC 8309 7266 7181 1286 8287 7266 7264 7266 6943 4674 3421 7249 7180 RIPE NCC 28287 25502 23014 5914 27034 25432 25964 25148 22455 13879 15503 26411 24929 OLD 34539 33607 30740 1213 33923 33092 32690 33024 28347 16532 10822 32798 32751 IANA 4599 3749 3320 496 4471 3587 3511 3590 3016 2003 1947 3548 3486 RFC1918 13 5 0 0 5 5 0 0 0 0 0 4 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 172908 165648 151458 9511 165337 160142 160590 160632 140299 86787 63587 161721 158813 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 rrc14 ARIN 10714 10679 10269 251 10659 10666 10607 10582 9741 6943 4979 10593 10639 APNIC 2199 2185 2161 18 2195 2181 2181 2163 2037 1658 1173 2175 2163 RIPE NCC 6373 6344 5962 2302 6361 6344 6346 6315 5781 4413 4762 6354 6324 LACNIC 102 102 95 9 101 102 100 100 92 70 47 97 101 IANA 2 2 2 1 2 2 2 2 2 2 2 2 2 Private 57 36 14 3 30 21 20 16 29 13 10 22 24 Others 1 1 1 0 1 1 1 1 1 1 1 1 1 Total 19448 19349 18504 2584 19349 19317 19257 19179 17683 13100 10974 19244 19254 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3204 3502 4722 156 3535 4362 5443 6301 4676 3381 2445 4282 6284 APNIC 622 725 864 14 744 882 1045 1123 964 780 535 921 961 RIPE NCC 1757 2226 2263 1394 1950 2503 2598 3633 2299 1758 2168 2407 3577 LACNIC 45 47 49 8 46 56 58 63 51 37 23 49 66 IANA 1 1 1 0 1 1 1 1 1 1 2 1 2 Private 44 25 9 0 21 14 14 10 23 9 8 15 18 Others 0 0 1 0 0 0 0 1 1 1 1 0 0 Total 5673 6526 7909 1572 6297 7818 9159 11132 8015 5967 5182 7675 10908 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7510 7177 5547 95 7124 6304 5164 4281 5065 3562 2534 6311 4355 APNIC 1577 1460 1297 4 1451 1299 1136 1040 1073 878 638 1254 1202 RIPE NCC 4616 4118 3699 908 4411 3841 3748 2682 3482 2655 2594 3947 2747 LACNIC 57 55 46 1 55 46 42 37 41 33 24 48 35 IANA 1 1 1 1 1 1 1 1 1 1 0 1 0 Private 13 11 5 3 9 7 6 6 6 4 2 7 6 Others 1 1 0 0 1 1 1 0 0 0 0 1 1 Total 13775 12823 10595 1012 13052 11499 10098 8047 9668 7133 5792 11569 8346 IANA : AS64001 AS40439 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 16093 16153 15456 1904 16111 16239 16175 16408 14824 10539 8617 16136 16387 Transit 3224 3070 2861 459 3108 2973 2964 2674 2620 2076 1868 2992 2768 Transit-only 131 126 187 221 130 105 118 97 239 485 489 116 99 Total 19448 19349 18504 2584 19349 19317 19257 19179 17683 13100 10974 19244 19254 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.20 6.21 5.98 5.00 6.23 6.20 6.09 6.14 6.49 6.11 6.41 6.19 5.82 Std 2.57 2.46 2.60 2.58 2.57 2.57 2.70 2.32 2.53 2.41 2.55 2.69 3.07 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.49.0/24 2706 526481 202.64.40.0/24 2706 449929 202.64.159.0/24 2706 415364 216.243.234.0/23 10970 298131 193.73.62.0/24 6730 279769 219.64.224.0/23 4755 239623 202.43.173.0/24 4832 226672 209.114.254.0/24 14359 218845 194.190.8.0/24 2878 118576 198.76.141.0/24 21617 98054 Total number of RIS BGP peering sessions: 482

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"AS-set stuffing" experiments using RIS beacons
by Lorenzo Colitti 25 Feb '05

25 Feb '05

[Apologies for duplicate emails] Dear colleagues, In the next few days, the beacon prefixes 84.205.73.0/24 and 84.205.89.0/24 will be used by researchers at the Computer Networks research group at Roma Tre University, in collaboration with the RIPE NCC New Projects Group, to perform studies on network topology discovery. The objective of the experiments is to investigate new methodologies for topology discovery and experimental mechanisms for deducing the routing policies of ISP's, the quality of their connectivity, and more general properties of interdomain topology. The experiments will involve announcing AS-sets of varying lengths behind AS 12654 and are initially scheduled for the last week of February and the first week of March. For further information, or for questions and comments, please contact compunet(a)dia.uniroma3.it or lorenzo(a)ripe.net. On behalf of the Roma Tre Computer Networks research group and the RIPE NCC New Projects group. Regards, Lorenzo Colitti

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Announcement: Changes to RIS Routing Beacons
by James Aldridge 25 Feb '05

25 Feb '05

[Apologies for duplicate messages] The RIPE Routing Information Service has made some alterations to our BGP Routing Beacon announcements. The main changes (since 3 February 2005) are: * Beacon prefixes now come from a new, larger address range 84.205.64.0/19 (instead of 195.80.224.0/20); * We now announce an "anchor prefix" corresponding to each beacon; * For each beacon and anchor prefix there is a "pingable" target at the first address in the range (beaconNN.ris.ripe.net, anchorNN.ris.ripe.net) All prefixes announced by the RIS (AS12654) are listed in the AS12654:RS-RIS 'route-set' and individual 'route' objects in the RIPE Database and are described in more detail at http://www.ripe.net/projects/ris/docs/beaconlist.html RIS peers should set any maximum prefix limit to at least the number of entries listed in the route-set (although it is unlikely that any one RRC will ever advertise more than a small subset of these prefixes). We would also like our peers to treat these prefixes in the same way that they would a customer's prefix and announce them to their other peers and upstream providers. If you have any questions, please contact the RIS team at ris(a)ripe.net. Regards, The RIPE NCC RIS Team

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