- ris-users - mailman.ripe.net

"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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RIS Statistics Report
by Generic RIS account 21 Feb '05

21 Feb '05

RIS Statistics Report (20050214-20050221) This report was generated at Mon Feb 21 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 29891 29686 27310 163 29390 29121 20240 29655 29181 28596 16816 29024 1629 ARIN 62710 61745 37973 501 62343 61362 27173 61667 61612 60375 25147 61634 1172 LACNIC 6971 6955 5784 774 6949 6954 4527 6949 6936 6920 3672 6936 484 RIPE NCC 27022 25762 22349 5590 26376 25418 18278 25134 25806 25221 14987 26155 750 OLD 33997 33296 21541 678 33663 32987 16789 32682 32573 31825 12829 32693 850 IANA 3600 3519 2671 521 3566 3471 2273 3459 3399 3362 1992 3457 112 RFC1918 16 13 0 0 2 10 0 0 0 0 0 1 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 164207 160976 117628 8227 162289 159323 89280 159546 159507 156299 75443 159900 4997 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 10690 10665 7929 254 10642 10634 6459 10567 10554 10543 5684 10580 475 APNIC 2184 2171 2122 22 2179 2170 1751 2154 2154 2147 1588 2162 391 RIPE NCC 6358 6334 5741 2146 6344 6328 5195 6297 6319 6317 4590 6338 520 LACNIC 100 100 83 10 99 99 78 98 95 95 55 94 6 IANA 1 1 0 0 1 1 0 1 1 1 0 1 0 Private 52 36 15 2 25 21 17 11 26 9 9 21 8 Others 1 1 1 0 1 1 1 1 1 1 0 1 0 Total 19386 19308 15891 2434 19291 19254 13501 19129 19150 19113 11926 19197 1400 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3146 3586 3317 162 3465 4799 2371 6450 4098 5001 2883 4027 292 APNIC 626 715 887 18 696 842 692 1195 772 1011 798 779 240 RIPE NCC 1756 2179 2160 1347 1998 2766 1773 3581 2307 2504 2108 2222 319 LACNIC 46 48 43 9 52 56 37 63 49 55 30 52 6 IANA 1 1 0 0 1 1 0 1 1 1 0 1 0 Private 37 26 9 1 18 14 11 8 21 5 7 15 7 Others 1 1 1 0 1 1 1 1 1 1 0 1 0 Total 5613 6556 6417 1537 6231 8479 4885 11299 7249 8578 5826 7097 864 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7544 7079 4612 92 7177 5835 4088 4117 6456 5542 2801 6553 183 APNIC 1558 1456 1235 4 1483 1328 1059 959 1382 1136 790 1383 151 RIPE NCC 4602 4155 3581 799 4346 3562 3422 2716 4012 3813 2482 4116 201 LACNIC 54 52 40 1 47 43 41 35 46 40 25 42 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 15 10 6 1 7 7 6 3 5 4 2 6 1 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13773 12752 9474 897 13060 10775 8616 7830 11901 10535 6100 12100 536 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 16054 16143 13008 1801 16066 16243 10681 16395 16123 16147 9523 16094 994 Transit 3207 3048 2610 430 3111 2909 2413 2643 2921 2867 1937 2990 283 Transit-only 125 117 273 203 114 102 407 91 106 99 466 113 123 Total 19386 19308 15891 2434 19291 19254 13501 19129 19150 19113 11926 19197 1400 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.10 6.09 6.05 4.98 6.18 6.19 6.23 6.11 6.18 5.63 6.26 5.95 7.98 Std 2.53 2.48 2.63 2.56 2.54 2.55 2.67 2.30 2.48 2.26 2.56 2.50 5.14 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.40.0/24 2706 553785 202.64.159.0/24 2706 538822 202.64.49.0/24 2706 536733 202.43.173.0/24 4832 334008 216.243.234.0/23 10970 278135 193.73.62.0/24 6730 256494 219.64.224.0/23 4755 237671 209.114.254.0/24 14359 224156 194.190.8.0/24 2878 125247 198.76.141.0/24 21617 78596 Total number of RIS BGP peering sessions: 469

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Re: About the BGP peering sessions.
by lanwang＠memphis.edu 17 Feb '05

17 Feb '05

Hi Shivani, > > I had a question regarding the nature of the BGP peering sessions of > the RRCs. Is there any place I can find accurate information about the > way the different RRCs maintain their peering sessions; as in how many > of the sessions are multi-hop BGP sessions and how many are direct > link sessions etc? > I was wondering about this since, there has been a paper (see below) > published in 2002 that said that most of the RRCs peering sessions > were multi-hop eBGP sessions and as a result the BGP data collected > here cannnot be an accurate refelction of what goes on the actual > Internet/backbone routers. > The above is an inaccurate summary of our paper. In the paper, we specifically mentioned that we used RRC00's data and all the BGP sessions at RRC00 used multi-hop peering. So what we concluded is that data from multi-hop peerings should be carefully sanitized to remove those BGP updates associated with the instability of the monitoring session (in this case, it was the session instability caused by the worm attack). Lan > "Observation and Analysis of BGP Behavior under Stress", Proceedings > of the Second ACM > SIGCOMM Internet Measurement Workshop (IMW '02), pp. 183-195, Nov. > 2002 > Any inputs that I can get regarding this will be very helpful. > > Shivani. > >

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RIS Statistics Report
by Generic RIS account 16 Feb '05

16 Feb '05

RIS Statistics Report (20050207-20050214) This report was generated at Mon Feb 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 29643 29456 28826 183 28905 28643 29087 29178 28906 28153 28323 28787 8309 ARIN 65577 64834 64471 650 65169 64357 65001 64507 64480 63453 63586 63470 5503 LACNIC 8557 8541 6757 1340 7345 8539 8552 8541 6758 6741 6741 6735 509 RIPE NCC 28341 26854 26428 5972 26938 25598 26437 25414 26068 23873 25442 26350 2995 OLD 33721 33076 32152 1291 33406 32724 32820 32711 32244 31451 31977 32162 3051 IANA 3406 3314 3217 445 3337 3280 3216 3271 3229 2957 3187 3221 298 RFC1918 35 11 1 0 11 4 7 0 19 0 0 0 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 169280 166086 161852 9881 165111 163145 165120 163622 161704 156628 159256 160725 20665 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 10670 10650 10553 292 10620 10629 10635 10548 10528 10497 10521 10540 1562 APNIC 2187 2181 2158 18 2179 2173 2167 2157 2149 2147 2147 2161 1109 RIPE NCC 6333 6307 6307 2298 6311 6303 6312 6278 6292 5952 6292 6303 869 LACNIC 102 102 96 11 99 101 102 99 96 97 96 95 7 IANA 1 1 1 0 1 1 1 1 1 1 1 1 0 Private 43 30 20 2 29 18 25 14 26 12 15 20 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 19336 19271 19135 2621 19239 19225 19242 19097 19092 18706 19072 19120 3547 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3119 3400 4443 186 3556 4252 4124 6487 4435 5592 4630 4070 1281 APNIC 641 703 811 16 738 866 776 1154 827 1105 942 893 907 RIPE NCC 1733 2125 2598 1466 2060 2594 2344 3679 2342 2520 2683 2373 718 LACNIC 46 48 51 10 46 53 52 66 53 55 53 52 7 IANA 1 1 1 0 1 1 1 1 1 1 1 1 0 Private 28 18 10 0 19 11 14 9 16 6 9 11 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 5568 6295 7914 1678 6420 7777 7311 11396 7674 9279 8318 7400 2913 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7551 7250 6110 106 7064 6377 6511 4061 6093 4905 5891 6470 281 APNIC 1546 1478 1347 2 1441 1307 1391 1003 1322 1042 1205 1268 202 RIPE NCC 4600 4182 3709 832 4251 3709 3968 2599 3950 3432 3609 3930 151 LACNIC 56 54 45 1 53 48 50 33 43 42 43 43 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 15 12 10 2 10 7 11 5 10 6 6 9 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13768 12976 11221 943 12819 11448 11931 7701 11418 9427 10754 11720 634 IANA : AS40439 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 15997 16084 16071 1983 16069 16192 16093 16389 16105 15792 16181 16069 3055 Transit 3213 3070 2949 411 3058 2936 3035 2621 2884 2796 2805 2949 432 Transit-only 126 117 115 227 112 97 114 87 103 118 86 102 60 Total 19336 19271 19135 2621 19239 19225 19242 19097 19092 18706 19072 19120 3547 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 5.97 5.92 5.88 4.91 5.92 5.99 5.91 6.01 6.24 5.76 5.73 5.82 4.43 Std 2.55 2.48 2.69 2.51 2.56 2.51 2.62 2.28 2.52 2.35 2.12 2.51 2.22 Can not connect to DB rrc14 Total number of RIS BGP peering sessions: 468

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About the BGP peering sessions.
by Shivani Joshi 16 Feb '05

16 Feb '05

Hi, I am a new member on this list. I had a question regarding the nature of the BGP peering sessions of the RRCs. Is there any place I can find accurate information about the way the different RRCs maintain their peering sessions; as in how many of the sessions are multi-hop BGP sessions and how many are direct link sessions etc? I was wondering about this since, there has been a paper (see below) published in 2002 that said that most of the RRCs peering sessions were multi-hop eBGP sessions and as a result the BGP data collected here cannnot be an accurate refelction of what goes on the actual Internet/backbone routers. "Observation and Analysis of BGP Behavior under Stress", Proceedings of the Second ACM SIGCOMM Internet Measurement Workshop (IMW '02), pp. 183-195, Nov. 2002 Any inputs that I can get regarding this will be very helpful. Shivani.

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ANNOUNCEMENT: The RIS Project's Remote Route Collector is online at PAIX.
by rispeering＠ripe.net 11 Feb '05

11 Feb '05

[Apologies for duplicate mails] Dear Colleagues, We are pleased to announce that we have relocated the RIS Project's second North American Remote Route Collector at PAIX, Palo Alto. We are now ready to peer with PAIX members. We would like to thank Paul Vixie and ISC for their help. RRC14, has been operating since December 2004. It has an interface on the shared PAIX network and runs both IPv4 and IPv6. It collects routing information from all exchange members who peer with us. - Our peering addresses are: IPv4: 198.32.176.6 IPv6: 3ffe:80a::9 - Our AS number is: 12654 - Our policy: http://www.ripe.net/projects/ris/docs/rrc14.html The Routing Information Service (RIS) started as a RIPE NCC project in 1999. It has grown to over 300 IPv4 and IPv6 peers at twelve data collection points in Europe, Japan and North America. We collect and make available BGP routing information by devising tools that can help ISPs debug problems without being limited to a BGP view. We provide RIS raw data regarding the historical development of the Internet. If you want to peer with the RIS, please send an e-mail to <rispeering(a)ripe.net> or use the web form that you can find at: http://www.ris.ripe.net/peerreg.cgi You can find more information about RIS at: http://www.ripe.net/ris/ You can find RIS tools at: http://www.ripe.net/projects/ris/tools/index.html If you have any questions or comments, please send an e-mail to <ris(a)ripe.net>. Regards. Arife Vural RIPE NCC, Software Engineering Department

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RIS Statistics Report
by Generic RIS account 07 Feb '05

07 Feb '05

RIS Statistics Report (20050131-20050207) This report was generated at Mon Feb 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 32671 32456 29231 220 29595 29500 29582 32534 29454 29157 16688 29228 0 ARIN 63000 61976 61969 997 62518 61676 62352 62049 61988 61030 24254 61989 0 LACNIC 6783 6765 6746 1308 6766 6762 6767 6766 6746 6730 3955 6746 0 RIPE NCC 27344 25528 25835 9414 26858 25217 25870 25245 26206 25294 15014 25964 0 OLD 33592 32916 32165 2146 33083 32601 32636 32719 32392 31810 12458 32211 1 IANA 3292 3199 3048 729 3166 3075 3049 3164 3062 3026 1676 3052 1 RFC1918 11 4 0 0 7 4 0 0 0 0 0 1 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 166693 162844 158994 14814 161993 158835 160256 162477 159848 157047 74045 159191 2 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 10659 10638 10548 421 10601 10602 10595 10534 10530 10524 5651 10542 2 APNIC 2180 2174 2160 28 2177 2164 2164 2151 2155 2149 1450 2157 0 RIPE NCC 6324 6294 6294 3193 6310 6288 6296 6265 6288 6290 4502 6294 0 LACNIC 99 99 93 11 98 98 97 97 94 94 62 93 0 IANA 1 0 1 0 0 0 1 1 1 1 1 1 0 Private 33 24 14 3 23 14 16 14 19 10 12 18 0 Others 1 0 1 0 0 0 1 0 1 0 0 1 0 Total 19297 19229 19111 3656 19209 19166 19170 19062 19088 19068 11678 19106 2 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3054 3308 3945 296 3273 4899 4450 6154 3755 4497 2298 4286 2 APNIC 592 657 791 22 654 941 881 1087 759 927 634 854 0 RIPE NCC 1711 2102 2287 2103 1875 2605 2334 3461 2097 2471 1815 2309 0 LACNIC 45 48 51 10 47 59 56 61 50 55 33 52 0 IANA 1 0 1 0 0 0 1 1 1 1 1 1 0 Private 23 16 6 0 14 7 8 10 12 6 9 11 0 Others 1 0 1 0 0 0 1 0 1 0 0 1 0 Total 5427 6131 7082 2431 5863 8511 7731 10774 6675 7957 4790 7514 2 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7605 7330 6603 125 7328 5703 6145 4380 6775 6027 3353 6256 0 APNIC 1588 1517 1369 6 1523 1223 1283 1064 1396 1222 816 1303 0 RIPE NCC 4613 4192 4007 1090 4435 3683 3962 2804 4191 3819 2687 3985 0 LACNIC 54 51 42 1 51 39 41 36 44 39 29 41 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 10 8 8 3 9 7 8 4 7 4 3 7 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13870 13098 12029 1225 13346 10655 11439 8288 12413 11111 6888 11592 0 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 15943 16011 15985 2862 15959 16112 16017 16285 16009 16033 9220 15986 1 Transit 3229 3096 3007 675 3128 2956 3038 2689 2971 2933 1953 3009 1 Transit-only 125 122 119 119 122 98 115 88 108 102 505 111 0 Total 19297 19229 19111 3656 19209 19166 19170 19062 19088 19068 11678 19106 2 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.17 6.00 5.91 4.94 6.17 6.20 6.11 6.14 6.17 5.86 6.41 6.31 1.00 Std 2.83 2.70 2.90 2.56 2.89 2.85 2.98 2.58 2.64 2.38 2.76 3.02 1.00 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.49.0/24 2706 477034 202.64.40.0/24 2706 466866 219.64.224.0/21 4755 239807 202.64.159.0/24 2706 231845 216.243.234.0/23 10970 222434 193.73.62.0/24 6730 218823 219.64.224.0/23 4755 186145 219.64.226.0/23 4755 176065 209.114.254.0/24 14359 168653 194.44.165.0/24 3255 148013 Total number of RIS BGP peering sessions: 457

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RIS Statistics Report
by Generic RIS account 01 Feb '05

01 Feb '05

RIS Statistics Report (20050124-20050131) This report was generated at Mon Jan 31 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 30108 30092 28713 212 29215 28975 25907 29404 29010 28505 28572 28829 1 ARIN 64001 63329 62414 670 63677 61247 48285 62959 61562 60550 60634 62954 6 LACNIC 7220 7204 6844 1104 7193 7204 5585 7204 7186 7170 7170 7186 0 RIPE NCC 28167 26670 24174 6680 27615 25915 21123 25494 26474 25870 25960 26788 0 OLD 33599 33083 31155 1379 33176 32463 25146 32416 32133 31528 31492 32086 6 IANA 3045 2960 2821 509 3030 2926 2391 2927 2897 2854 2864 2945 0 RFC1918 13 6 0 0 8 5 0 0 0 0 1 1 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 166153 163344 156121 10554 163914 158735 128437 160404 159262 156477 156693 160789 13 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 10673 10640 10520 298 10618 10607 9004 10521 10525 10506 10474 10555 4 APNIC 2183 2177 2157 20 2179 2168 1988 2157 2152 2143 2133 2159 2 RIPE NCC 6320 6286 6086 2440 6301 6278 5616 6241 6277 6274 6256 6289 0 LACNIC 98 98 92 5 97 98 90 95 94 94 93 94 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 38 30 19 2 28 19 17 12 23 10 13 21 0 Others 1 0 1 0 1 0 1 0 1 0 0 1 0 Total 19313 19231 18875 2765 19224 19170 16716 19026 19072 19027 18969 19119 6 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 3006 3195 3640 208 3228 3938 3453 6078 3516 4660 5189 3581 3 APNIC 551 622 713 17 623 818 797 1199 757 976 1125 706 1 RIPE NCC 1717 2036 2175 1478 1853 2447 1897 3460 2185 2667 3079 1986 0 LACNIC 50 50 50 5 50 56 49 62 50 55 61 51 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 26 21 9 0 16 10 9 8 14 4 8 11 0 Others 1 0 1 0 1 0 1 0 1 0 0 1 0 Total 5351 5924 6588 1708 5771 7269 6206 10807 6523 8362 9462 6336 4 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7667 7445 6880 90 7390 6669 5551 4443 7009 5846 5285 6974 1 APNIC 1632 1555 1444 3 1556 1350 1191 958 1395 1167 1008 1453 1 RIPE NCC 4603 4250 3911 962 4448 3831 3719 2781 4092 3607 3177 4303 0 LACNIC 48 48 42 0 47 42 41 33 44 39 32 43 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 12 9 10 2 12 9 8 4 9 6 5 10 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13962 13307 12287 1057 13453 11901 10510 8219 12549 10665 9507 12783 2 Others: AS65535 Distribution of AS number wrt Leaf, Transit. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Leaf 15946 15995 15726 2078 15956 16076 13677 16226 15984 16026 16079 15932 4 Transit 3236 3110 3008 484 3143 2989 2764 2701 2975 2884 2794 3065 1 Transit-only 131 126 141 203 125 105 275 99 113 117 96 122 1 Total 19313 19231 18875 2765 19224 19170 16716 19026 19072 19027 18969 19119 6 o Average ASPATH length. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 Avg 6.09 5.94 5.95 5.04 6.10 6.18 6.27 6.13 6.13 5.90 6.10 6.05 2.33 Std 2.65 2.54 2.68 2.49 2.66 2.77 2.92 2.45 2.51 2.47 2.34 2.72 0.75 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.40.0/24 2706 441560 202.64.49.0/24 2706 437901 193.73.62.0/24 6730 255820 219.64.224.0/21 4755 249407 216.243.234.0/23 10970 219262 203.81.64.0/19 9988 196191 209.114.254.0/24 14359 181718 219.64.226.0/23 4755 174131 219.64.224.0/23 4755 173426 202.64.159.0/24 2706 170907 Total number of RIS BGP peering sessions: 458

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RIS Statistics Report
by Generic RIS account 24 Jan '05

24 Jan '05

RIS Statistics Report (20050117-20050124) This report was generated at Mon Jan 24 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 29408 29398 27571 274 28497 28148 28275 28694 27193 23881 27634 28125 1 ARIN 61814 61136 59258 827 61414 60535 60544 60806 52680 44066 59684 60183 6 LACNIC 7243 7226 7191 598 7230 7226 7226 7215 7086 5250 7107 7201 0 RIPE NCC 27912 26383 23844 9397 26877 25341 25717 25021 20686 20836 23815 25457 0 OLD 34623 34087 31666 2278 34041 33111 33031 33368 28630 24601 31712 32462 6 IANA 2923 2830 2660 642 2909 2789 2732 2779 2376 2210 2667 2830 0 RFC1918 14 6 0 0 8 5 0 0 0 0 0 0 0 OTHER 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 163937 161066 152190 14016 160976 157155 157525 157883 138651 120844 152619 156258 13 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 10631 10619 10451 421 10577 10582 10585 10505 9858 8190 10444 10524 0 APNIC 2174 2171 2125 51 2169 2153 2149 2134 2076 1957 2113 2147 0 RIPE NCC 6293 6271 6060 3192 6274 6256 6263 6224 5637 5618 5925 6267 0 LACNIC 91 90 86 7 90 90 91 89 85 78 85 86 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 32 24 15 3 23 17 15 10 16 10 12 14 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 19221 19175 18737 3674 19133 19098 19103 18962 17672 15853 18579 19038 0 o Number of single-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 2995 3194 3743 296 3314 4373 4716 6140 4133 3837 5152 4049 0 APNIC 559 600 770 32 650 847 917 1148 811 1021 1164 867 0 RIPE NCC 1748 2021 2273 2170 1881 2433 2530 3546 2200 2341 3070 2237 0 LACNIC 43 43 45 7 43 51 53 58 45 46 54 47 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 23 16 8 1 15 8 8 7 10 5 7 7 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 5368 5874 6839 2506 5903 7712 8224 10899 7199 7250 9447 7207 0 o Number of multi-homed ASes. RIS rrc00 rrc01 rrc02 rrc03 rrc04 rrc05 rrc06 rrc07 rrc10 rrc11 rrc12 rrc14 ARIN 7636 7425 6708 125 7263 6209 5869 4365 5725 4353 5292 6475 0 APNIC 1615 1571 1355 19 1519 1306 1232 986 1265 936 949 1280 0 RIPE NCC 4545 4250 3787 1022 4393 3823 3733 2678 3437 3277 2855 4030 0 LACNIC 48 47 41 0 47 39 38 31 40 32 31 39 0 IANA 0 0 0 0 0 0 0 0 0 0 0 0 0 Private 9 8 7 2 8 9 7 3 6 5 5 7 0 Others 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 13853 13301 11898 1168 13230 11386 10879 8063 10473 8603 9132 11831 0 o List of hot-spots during the week. Prefix Origin AS Number of updates 202.64.40.0/24 2706 422587 202.64.159.0/24 2706 279464 193.73.62.0/24 6730 252990 216.243.234.0/23 10970 251822 209.114.254.0/24 14359 220404 137.100.142.0/24 209 202950 209.246.156.0/22 11178 201469 198.76.148.0/24 21617 136023 194.190.8.0/24 2878 117172 198.76.141.0/24 21617 116442 Total number of RIS BGP peering sessions: 453

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