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Implicit Withdrawal - BGP Update Message
by Ado Maja 11 Oct '15

11 Oct '15

DearMaurizio and Colin, Thank youfor your responses. It was bymistake that I send an example where BGP messages are not coming from the samepeer. All four messages in the example were supposed to have same peer, andannounced IP address while different AS-PATH attribute. In thatcase I would have three implicit withdrawals, right? Colin, Are yousuggesting that if I look at five-days worth of BGP update messages and tryingto count how many implicit withdrawals during that time I have that I need to checkfirst appearance of every announced IP address and check if it is ‘truly’ newannouncement or possibly an implicit withdrawal that happened prior to the timeframe I am looking at? Also, Iwas completely ignoring the state change messages. Are you referring to the messagesbelow? I am not sure what to make out of those. Bestregards, Ado TIME:2001-9-16 00:00:09 TYPE:BGP4MP/BGP4MP_STATE_CHANGE AFI_IP FROM:192.65.185.151 OLD STATE:3 NEW STATE: 2 TIME:2001-9-16 00:00:09 TYPE:BGP4MP/BGP4MP_STATE_CHANGE AFI_IP FROM:192.65.185.151 OLD STATE:2 NEW STATE: 3

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Implicit Withdrawal - BGP Update Message
by Ado Maja 11 Oct '15

11 Oct '15

Dear all,I am trying to account for all implicit withdrawal messages within a certain period of time looking at BGP update messages collected at rrc, Ripe. Implicit Withdrawal Definition: If the sender announces a route to a currently reachable address and the new route is identical to the current route, this is a duplicate announcement. Otherwise, the sender is replacing the current route with a new route and this is an implicit withdrawal. (Wang et al. in the "Observation and Analysis of BGP iBehavior under Stress") What I am trying to understand is how do I count implicit withdrawals? If for example, I have 4 BGP messages shown below that have same IP address and different AS-PATH attribute, how many implicit withdrawals do I have? Is it 3? If I look at consecutive messages that have same IP address and different AS-PATH attribute the result would be 3 (I compare first to the second, second to the third and third to the fourth – assuming they have same IP address and different AS-PATH I increment implicit withdrawals). But I have come across a solution that takes a first message and compares it to the rest of the messages. Than second message compares to the rest of the messages. And lastly compares the third to the fourth. In this case number of implicit withdrawals is 6. Please advise.Thanks for your help.TIME: 2001-9-16 00:00:06TYPE: BGP4MP/BGP4MP_MESSAGE AFI_IPFROM: 192.65.185.144TO: 192.65.185.40BGP PACKET TYPE: UPDATEORIGIN: IGPAS_PATH: 6893 8938 1 297NEXT_HOP: 192.65.185.144ANNOUNCED: 192.152.102.0/24 TIME: 2001-9-16 00:00:18TYPE: BGP4MP/BGP4MP_MESSAGE AFI_IPFROM: 192.65.184.3TO: 192.65.185.40BGP PACKET TYPE: UPDATEORIGIN: IGPAS_PATH: 513 10764 6509 297NEXT_HOP: 192.65.185.9ANNOUNCED: 192.152.102.0/24 TIME: 2001-9-16 00:00:36TYPE: BGP4MP/BGP4MP_MESSAGE AFI_IPFROM: 192.65.185.144TO: 192.65.185.40BGP PACKET TYPE: UPDATEORIGIN: IGPAS_PATH: 6893 3561 209 297NEXT_HOP: 192.65.185.144ANNOUNCED: 192.152.102.0/24 TIME: 2001-9-16 00:00:44TYPE: BGP4MP/BGP4MP_MESSAGE AFI_IPFROM: 192.65.185.130TO: 192.65.185.40BGP PACKET TYPE: UPDATEORIGIN: IGPAS_PATH: 559 8933 6509 297NEXT_HOP: 192.65.185.130ANNOUNCED: 192.152.102.0/24

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libbgpdump 1.4.99.14 released
by Colin Petrie 13 Apr '15

13 Apr '15

Dear Colleagues, The RIPE NCC has released version 1.4.99.14 of libbgpdump, the library that reads RIS raw data files. The following new features have been added in this version: - Support for parsing MRT Type 5 (BGP) messages produced by earlier versions of Quagga/Zebra in the RIS raw data archives Various minor fixes include: - Fix for corruption at the end of bgpdump output - Updated the maximum permitted prefixes handled in a single BGP update message to match the RFC spec - Fix for crashes in int2str handling There will be another release shortly, combining some additional features and fixes for some other reported issues. You can download libbgpdump 1.4.99.14 from: http://www.ris.ripe.net/source/bgpdump/ Development of libbgpdump takes place on the Bitbucket repository: https://bitbucket.org/ripencc/bgpdump/ Please submit any bug reports and/or patches via the Bitbucket issue tracker. Kind Regards, Colin Petrie RIPE NCC

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perl extension Net::BGPdump released
by Matt Sisk 10 Apr '15

10 Apr '15

Hello, I put together a perl extension for libbgpdump if anyone is interested: http://search.cpan.org/dist/Net-BGPdump/ Cheers, Matt

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libbgpdump overall maintenance status, and looking for a security contact
by Christoph Biedl 28 May '14

28 May '14

Hello, according to the archive this list never saw much activity, and has been completely dead the past year. So let's see whether it actually still has readers ... My question is, is there still anyone doing maintenance on libbgpdump? The bug tracker has a few open issues that affect virtually every user of that package. And there are some more, as I wrote in issue #19: | while packaging libbgpdump for the Debian Linux distribution, I | found a few more issues than already listed here. In the spirit of | responsible disclosure I'd like to give you an opportinity fix the | vulnerabilities before they are public. This should be done together | with the at least three longstanding issues #2 (duplicates: #10, | #13, #17, #18), #12 and #15 that can be found here. So whoever is in charge, please get in touch with me. Christoph

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RIS data collection issue
by Romeo Zwart 20 Jun '13

20 Jun '13

Dear all, We have been experiencing some issues with the RIS data collection process yesterday. For details please see: https://www.ripe.net/lir-services/service-announcements/ris-data-collection… Kind regards, Romeo Zwart RIPE NCC

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RIS Statistics Report (2013-06-07 - 2013-06-14)
by Generic RIS Account 14 Jun '13

14 Jun '13

RIS Statistics Report (2013-06-07 - 2013-06-14) This report was generated at Fri, 14 Jun 2013 23:44:59 UTC . 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. Average ASPATH length. average variance max min global 5.22 5.48 66.00 1.00 rrc00 5.26 5.19 66.00 1.00 rrc01 4.98 5.50 65.00 1.00 rrc03 5.15 5.86 64.00 1.00 rrc04 5.49 5.17 64.00 1.00 rrc05 5.19 4.79 64.00 1.00 rrc06 5.47 5.51 58.00 1.00 rrc07 4.93 5.27 63.00 1.00 rrc12 5.08 5.49 64.00 1.00 rrc13 5.52 5.41 65.00 1.00 rrc14 4.87 6.79 63.00 1.00 rrc15 5.86 5.24 66.00 1.00 Warning: not all route collectors returned data, and therefore the results might not be complete

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RIS Statistics Report (2013-05-31 - 2013-06-07)
by Generic RIS Account 08 Jun '13

08 Jun '13

RIS Statistics Report (2013-05-31 - 2013-06-07) This report was generated at Sat, 08 Jun 2013 00:44:57 UTC . 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. Average ASPATH length. average variance max min global 5.22 5.31 71.00 1.00 rrc00 5.33 5.54 68.00 1.00 rrc01 4.95 5.25 70.00 1.00 rrc03 5.22 5.80 71.00 1.00 rrc04 5.51 5.10 59.00 1.00 rrc05 5.23 5.16 70.00 1.00 rrc06 5.60 6.19 57.00 1.00 rrc10 5.42 5.22 57.00 1.00 rrc12 5.12 4.99 66.00 1.00 rrc13 5.35 5.34 71.00 1.00 rrc14 4.61 5.46 66.00 1.00 rrc15 5.83 5.13 60.00 1.00 Warning: not all route collectors returned data, and therefore the results might not be complete Prefix Distribution globally and per rrc, per protocol. v4 v6 global 551826 15243 rrc00 502844 14212 rrc01 463340 13707 rrc03 478163 13801 rrc04 473090 13171 rrc05 466488 13592 rrc06 467694 13153 rrc07 467536 13253 rrc10 471759 13415 rrc12 481033 13971 rrc13 496855 13849 rrc14 472719 13473 rrc15 471740 13372 Prefix Distribution globally per Regional Internet Registry v4 v6 6to4 N/A 2 AFRINIC 8387 136 APNIC 122668 2902 ARIN 129870 4870 IANA N/A 1 LACNIC 60041 960 LEGACY 69980 N/A RESERVED 12 N/A RIPE NCC 160849 6366 UNALLOCATED 19 6

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RIS Statistics Report (2013-05-24 - 2013-05-31)
by Generic RIS Account 01 Jun '13

01 Jun '13

RIS Statistics Report (2013-05-24 - 2013-05-31) This report was generated at Sat, 01 Jun 2013 06:45:09 UTC . 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. Average ASPATH length. average variance max min global 5.19 5.53 108.00 1.00 rrc00 5.26 5.54 108.00 1.00 rrc01 4.93 5.51 105.00 1.00 rrc03 5.17 6.11 104.00 1.00 rrc04 5.38 4.99 105.00 1.00 rrc06 5.58 6.23 104.00 1.00 rrc07 5.19 5.98 105.00 1.00 rrc12 4.88 4.67 106.00 1.00 rrc13 5.56 6.01 106.00 1.00 rrc14 4.65 5.89 103.00 1.00 rrc15 5.77 5.04 107.00 1.00 Warning: not all route collectors returned data, and therefore the results might not be complete Prefix Distribution globally and per rrc, per protocol. v4 v6 global 550209 15011 rrc00 504009 14338 rrc01 463576 13823 rrc03 474840 13987 rrc04 471330 13257 rrc05 466522 14107 rrc06 467375 13286 rrc07 466722 13386 rrc10 470382 13524 rrc12 473525 2 rrc13 495092 14022 rrc14 472374 13692 rrc15 473211 13561 Prefix Distribution globally per Regional Internet Registry v4 v6 6to4 N/A 2 AFRINIC 8298 133 APNIC 122818 2874 ARIN 129340 5055 IANA N/A 1 LACNIC 60176 948 LEGACY 70156 N/A RESERVED 17 N/A RIPE NCC 159385 5993 UNALLOCATED 19 5 List of martians appearing throughout the week originAs duration rrcs 2026:10c:6003::/48 51830 25w 2d 08:45:00 rrc00/rrc01/rrc03/rrc04/rrc05/rrc06/rrc07/rrc10/rrc13/rrc14/rrc15 10.198.152.224/30 65100 21w 6d 16:00:00 rrc10 10.198.154.4/30 65100 21w 6d 16:00:00 rrc10 2::2/128 42298 21w 6d 15:59:56 rrc00/rrc01/rrc03/rrc05/rrc13 1::1/128 42298 21w 6d 15:59:56 rrc00/rrc01/rrc03/rrc05/rrc13 10.198.210.0/29 65100 19w 1d 05:10:22 rrc10 10.198.154.8/29 65100 18w 05:08:48 rrc10 10.1.2.0/24 6730 13w 5d 08:00:00 rrc00 10.33.1.0/24 6730 13w 5d 08:00:00 rrc00 172.16.0.88/30 3848 13w 5d 07:59:51 rrc00 192.168.20.0/24 6730 13w 5d 07:59:49 rrc00 192.168.4.0/24 6730 13w 5d 07:59:49 rrc00 192.168.0.0/24 6730 13w 5d 07:59:49 rrc00 172.16.10.0/24 8359 9w 3d 23:29:24 rrc12/rrc13 192.168.255.0/30 8359 9w 3d 23:21:23 rrc12/rrc13 192.168.64.236/30 8359 9w 3d 23:02:14 rrc12/rrc13 10.255.2.96/30 8717 9w 3d 16:00:00 rrc03 10.78.7.25/32 8717 9w 3d 16:00:00 rrc03 10.78.7.24/32 8717 9w 3d 16:00:00 rrc03 172.18.2.0/24 65056 9w 1d 23:58:57 rrc13 192.168.230.0/23 39600 8w 6d 15:59:57 rrc05 172.30.216.0/22 29791 8w 2d 16:54:16 rrc03 128.0.0.0/2 3303 5w 5d 23:59:59 rrc04 192.0.0.0/3 3303 5w 5d 23:59:58 rrc04 10.255.255.252/30 8359 5w 1d 00:05:13 rrc13 192.168.21.1/32 197947 4w 4d 02:21:49 rrc04/rrc10 172.31.23.0/24 20412 3w 09:09:09 rrc03 172.31.24.0/24 20412 3w 09:09:09 rrc03 10.10.20.0/26 12713 3w 02:06:57 rrc00/rrc04/rrc10/rrc12/rrc13 172.16.132.0/24 20161 2w 4d 00:48:39 rrc03 172.16.136.0/21 20161 2w 4d 00:48:09 rrc03 10.72.0.0/16 44050 6d 18:28:22 rrc01 172.16.1.3/32 8468 6d 15:59:57 rrc01 172.16.0.129/32 8468 6d 15:59:57 rrc01 172.16.1.1/32 8468 6d 15:59:57 rrc01 172.16.1.4/32 8468 6d 15:59:57 rrc01 172.16.4.1/32 8468 6d 15:59:57 rrc01 172.16.0.130/32 8468 6d 15:59:57 rrc01 172.16.1.2/32 8468 6d 15:59:57 rrc01 172.16.1.5/32 8468 6d 15:59:57 rrc01 192.168.88.0/24 37989 6d 07:59:50 rrc00 172.16.2.1/32 8468 2d 04:27:35 rrc01 172.16.0.132/32 8468 07:21:46 rrc01 172.16.0.131/32 8468 07:19:43 rrc01 172.16.4.2/32 8468 01:33:02 rrc01 10.0.8.0/21 9121 00:00:00 rrc05 192.168.206.0/24 9121 00:00:00 rrc05 192.168.202.0/24 9121 00:00:00 rrc05 192.168.24.0/24 9121 00:00:00 rrc05 172.31.255.0/24 9121 00:00:00 rrc05 10.10.10.0/24 9121 00:00:00 rrc05 192.168.26.0/24 9121 00:00:00 rrc05 10.0.16.0/21 9121 00:00:00 rrc05 192.168.203.0/24 9121 00:00:00 rrc05 192.168.200.0/23 9121 00:00:00 rrc05 192.168.1.0/24 6730 13w 5d 06:49:35 rrc00 192.168.1.0/24 9121 00:00:00 rrc05 10.59.0.0/20 9121 00:00:00 rrc05 10.1.13.0/24 9121 00:00:00 rrc05 List of prefix related hot-spots during the week. as announcements withdrawals 78.40.240.0/24 33920 181930 12949 192.58.232.0/24 6629 36870 3328 218.189.8.0/22 9304 30667 185 91.220.46.0/24 197340 29809 0 203.215.32.0/24 55330 25084 1877 194.63.9.0/24 1273 20353 6356 203.118.232.0/21 9416 18241 7966 203.118.224.0/21 9416 18169 7843 173.232.235.0/24 30693 19883 4350 173.232.234.0/24 30693 19881 4351 115.170.128.0/17 4847 20063 2351 69.38.178.0/24 19406 16827 5268 62.84.76.0/24 42334 16423 4503 209.240.40.0/21 32020 20765 123 2.93.235.0/24 8402 16678 3115 213.193.40.0/21 6187 19107 180 64.187.64.0/23 16608 13978 4165 208.68.168.0/21 29838 17673 101 12.139.133.0/24 14680 11052 6517 210.244.63.0/24 45757 16345 923 Warning: not all route collectors returned data, and therefore the results might not be complete Peering overview per rrc and per protocol v4 v6 rrc00 32 20 rrc01 54 17 rrc03 79 27 rrc04 15 6 rrc05 46 15 rrc06 6 1 rrc07 16 7 rrc10 23 15 rrc12 52 33 rrc13 21 6 rrc14 19 10 rrc15 16 8

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RIS Statistics Report (2013-05-17 - 2013-05-24)
by Generic RIS Account 25 May '13

25 May '13

RIS Statistics Report (2013-05-17 - 2013-05-24) This report was generated at Sat, 25 May 2013 06:29:20 UTC . 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. Average ASPATH length. average variance max min global 5.28 5.36 120.00 1.00 rrc01 4.92 5.00 120.00 1.00 rrc03 5.19 5.90 120.00 1.00 rrc04 5.40 4.88 113.00 1.00 rrc05 5.27 5.14 120.00 1.00 rrc06 5.46 5.35 32.00 1.00 rrc07 5.28 5.77 54.00 1.00 rrc10 5.45 4.82 54.00 1.00 rrc12 0.00 0.00 0.00 0.00 rrc13 5.57 5.60 120.00 1.00 rrc14 4.83 6.13 63.00 1.00 rrc15 5.83 5.07 55.00 1.00 Warning: not all route collectors returned data, and therefore the results might not be complete Prefix Distribution globally and per rrc, per protocol. v4 v6 global 550688 14821 rrc00 506132 14126 rrc01 462273 13654 rrc03 476489 13801 rrc04 470258 13100 rrc05 465849 13914 rrc06 469127 13122 rrc07 465717 13226 rrc10 469656 13407 rrc12 0 0 rrc13 495627 13807 rrc14 348448 11054 rrc15 471063 13420 Prefix Distribution globally per Regional Internet Registry v4 v6 6to4 N/A 2 AFRINIC 8198 134 APNIC 122805 2799 ARIN 128957 4894 IANA N/A 1 LACNIC 59879 932 LEGACY 69517 N/A RESERVED 15 N/A RIPE NCC 161298 6055 UNALLOCATED 19 4 Distribution of AS number wrt 2 and 4-Byte ASN. 2-Byte ASN 4-Byte ASN global 41183 3738 rrc00 41073 3733 rrc01 40937 3724 rrc03 40986 3730 rrc04 40917 3725 rrc05 40909 3725 rrc06 40828 3723 rrc07 40811 3726 rrc10 40921 3725 rrc12 0 0 rrc13 40984 3728 rrc14 34463 3475 rrc15 40926 3726 Distribution of AS number wrt single and multi-homed . Single-Homed Multi-Homed global 15348 29573 rrc00 16185 28621 rrc01 16847 27814 rrc03 17120 27596 rrc04 19485 25157 rrc05 18986 25648 rrc06 25873 18678 rrc07 22125 22412 rrc10 19121 25525 rrc12 0 0 rrc13 18033 26679 rrc14 17472 20466 rrc15 18099 26553 Distribution of AS number wrt transit. Transit-Only Transit Leaf global 235 7317 37369 rrc00 227 7122 37457 rrc01 241 6944 37476 rrc03 228 6968 37520 rrc04 222 6792 37628 rrc05 224 6798 37612 rrc06 211 6293 38047 rrc07 232 6567 37738 rrc10 231 6775 37640 rrc12 0 0 0 rrc13 222 6960 37530 rrc14 521 6016 31401 rrc15 227 6852 37573 AS number Distribution globally per Regional Internet Registry Distribution AFRINIC 657 APNIC 5521 ARIN 15925 IANA Unallocated 240 LACNIC 2748 RIPE NCC 19830 List of martians appearing throughout the week originAs duration rrcs 2026:10c:6003::/48 51830 24w 2d 08:46:00 rrc00/rrc01/rrc03/rrc04/rrc05/rrc06/rrc07/rrc10/rrc13/rrc15 1::1/128 42298 20w 6d 23:40:44 rrc00/rrc01/rrc03/rrc05/rrc13 10.198.152.224/30 65100 20w 6d 16:00:00 rrc10 10.198.154.4/30 65100 20w 6d 16:00:00 rrc10 10.198.210.0/29 65100 18w 1d 05:10:22 rrc10 10.198.154.8/29 65100 17w 05:08:48 rrc10 10.72.0.0/16 44050 12w 5d 21:31:38 rrc01 10.1.2.0/24 6730 12w 5d 16:00:00 rrc00 10.33.1.0/24 6730 12w 5d 16:00:00 rrc00 172.16.0.88/30 3848 12w 5d 15:59:51 rrc00 192.168.20.0/24 6730 12w 5d 15:59:49 rrc00 192.168.88.0/24 9026 00:11:08 rrc10 192.168.88.0/24 37989 12w 5d 15:59:49 rrc00 192.168.4.0/24 6730 12w 5d 15:59:49 rrc00 192.168.0.0/24 6730 12w 5d 15:59:49 rrc00 192.168.1.0/24 6730 12w 5d 14:49:35 rrc00 10.255.2.96/30 8717 8w 3d 16:00:00 rrc03 10.78.7.25/32 8717 8w 3d 16:00:00 rrc03 10.78.7.24/32 8717 8w 3d 16:00:00 rrc03 192.168.255.0/30 8359 8w 2d 23:50:34 rrc13 172.16.10.0/24 8359 8w 2d 22:59:35 rrc13 192.168.64.236/30 8359 8w 2d 22:39:39 rrc13 172.18.2.0/24 65056 8w 1d 23:58:57 rrc13 192.168.230.0/23 39600 7w 6d 15:59:57 rrc05 172.30.216.0/22 29791 7w 2d 16:54:16 rrc00/rrc01/rrc03/rrc10/rrc13 172.16.0.129/32 8468 6w 03:59:59 rrc01 172.31.23.0/24 20412 5w 3d 23:48:51 rrc03 172.31.24.0/24 20412 5w 3d 23:48:51 rrc03 128.0.0.0/2 3303 4w 5d 23:59:59 rrc04 192.0.0.0/3 3303 4w 5d 23:59:58 rrc04 10.255.255.252/30 8359 4w 3d 04:37:26 rrc13 172.18.44.0/22 8359 4w 2d 18:39:44 rrc13 192.168.21.1/32 197947 3w 4d 02:21:49 rrc04/rrc10 10.178.0.0/16 196695 2w 2d 20:52:53 rrc13 10.10.20.0/26 12713 2w 02:06:57 rrc00/rrc04/rrc10/rrc13 172.16.132.0/24 20161 1w 4d 00:48:39 rrc03 172.16.136.0/21 20161 1w 4d 00:48:09 rrc03 172.16.4.1/32 8468 1w 3d 01:32:29 rrc01 172.16.0.130/32 8468 1w 1d 02:56:20 rrc01 172.16.1.2/32 8468 6d 07:32:45 rrc01 172.16.1.3/32 8468 6d 07:31:43 rrc01 172.16.1.1/32 8468 6d 07:31:12 rrc01 172.16.1.5/32 8468 6d 04:45:49 rrc01 172.16.1.4/32 8468 6d 04:45:18 rrc01 10.255.255.248/30 8359 01:17:22 rrc13 192.168.0.0/22 9026 00:11:08 rrc10 10.0.0.2/32 9026 00:11:08 rrc10 192.168.192.0/24 9026 00:11:08 rrc10 172.16.17.0/30 9026 00:11:08 rrc10 List of prefix related hot-spots during the week. as announcements withdrawals 193.19.90.0/23 29684 26770 0 192.58.232.0/24 6629 19135 596 194.219.56.0/24 1241 16934 1502 78.40.240.0/24 33920 13573 247 2001:e30:1867::/48 2697 10893 2126 212.28.16.0/20 15957 12542 0 212.28.0.0/20 15957 12538 0 88.216.171.0/24 33922 11271 1212 203.118.232.0/21 9416 8175 4039 203.118.224.0/21 9416 8141 4031 1.9.182.0/24 4788 11874 1 1.9.185.0/24 4788 11873 1 1.9.181.0/24 4788 11872 1 1.9.204.0/24 4788 11872 1 1.9.184.0/24 4788 11872 1 1.9.183.0/24 4788 11871 1 1.9.205.0/24 4788 11870 1 1.9.186.0/24 4788 11868 1 1.9.177.0/24 4788 11867 1 1.9.179.0/24 4788 11867 1 Warning: not all route collectors returned data, and therefore the results might not be complete Peering overview per rrc and per protocol v4 v6 rrc00 32 20 rrc01 54 17 rrc03 79 27 rrc04 15 6 rrc05 45 15 rrc06 6 1 rrc07 16 7 rrc10 23 15 rrc12 N/A N/A rrc13 21 6 rrc14 18 9 rrc15 15 8

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