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New Document available: ripe-122
by RIPE NCC Document Annoucement Service 06 Oct '94

06 Oct '94

New/Revised RIPE Document Announcement -------------------------------------- A revised/new document is available from the RIPE document store. Ref: ripe-122 Title: Specifying an `Internet Router' in the Routing Registry Author: Tony Bates Date: 3 October 1994 Format: PS=37970 TXT=14242 Obsoletes: Obsoleted by: Updates: Updated by: Old: Short content description ------------------------- This document specifies a simple object for detailing Internet routers with the RIPE routing registry. FTP Access ---------- All RIPE documents and Internet RFC`s are available via anonymous FTP from host ftp.ripe.net. Type "ftp ftp.ripe.net". Login with username "anonymous" supplying your email address as the password. After logging in, type "cd ripe/docs/" followed by the command "get filename". The relevant filenames for this document are: ripe-122.txt for the ASCII version ripe-122.ps for the PostScript version Electronic Mail Retrieval of Documents -------------------------------------- Documents can also be retrieved from the RIPE document store using a mail server program. For more information on how to use the program, send email to: mail-server(a)ripe.net with "send HELP" in the body text. RIPE NCC Interactive Information Server --------------------------------------- Type "telnet info.ripe.net". This is a menu driven service allows the document store to be browsed. After reading documents you are prompted as to whether you would like to receive an email copy of the document you have just read. If you would, you simply enter your email address and the document will be mailed to you. Below are details of alternative methods of access. Gopher Access ------------- The same documents are available via a "gopher" server at "gopher gopher.ripe.net". WAIS Access ----------- There is also a "WAIS" server at wais.ripe.net, where there is a WAIS index for RIPE documents "ripe-docs.src" WWW Access ---------- For those who wish to add this home page at the RIPE NCC to their own customized home pages, it can be accessed as: http://www.ripe.net MIME Mail Reader ---------------- Below is the data which will enable a MIME compliant Mail Reader implementation to automatically retrieve the RIPE document by FTP or mail server. SEND ripe/docs/ripe-122.txt

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The Top 20 and some deltas
by Tony Bates 05 Oct '94

05 Oct '94

This is an auto-generated mail on Wed Oct 5 21:10:00 MET 1994 As stated above this is auto-generated so it is not checked before it leaves my workstation. This is a list of the "Top 20" players who if CIDRizing at the AS level could make a significant gain in the size of Internet routing tables. This may be an over-estimation but it is hoped that this can act as an incentive for the "Top 20" and others to look at their CIDR capability. This report is available as: ftp://ftp.ripe.net/cidr/stats/Top-20.05Oct94 The current (and of course this one today) report is always accessible as: ftp://ftp.ripe.net/cidr/stats/Top-20 A full summary of all the ASes seen in the Internet can be seen by looking in: ftp://ftp.ripe.net/cidr/stats/AS* Please also find a summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does some indication of ASes participating in CIDR. More information can be found in: ftp://ftp.ripe.net/cidr/stats/Delta.* Also, for a short time this gives details of any possibly interesting aggregates currently seen in the routing. Interesting here means not a aggregate made as a set of classful routes. This a daily snapshot of changes in classfull routes being withdrawn and added. the deltas are calculated over a rolling 7 day period. Please bear in mind this is purely a "snapshot" and a large flucuation could be caused by a connectivity problem for example. However, this does give some indication of service providers that are moving to classless routing. Top 20 Withdrawn Routes from 28Sep94 to 05Oct94 -135 AS701 AlterNet -130 AS1239 SprintLink -62 AS2572 MORENET -49 AS279 SURANET-AS-2 -24 AS2699 BBN-DSI1 -14 AS3602 INSINC -12 AS1204 SUNYNET-ASN-AS -11 AS19 CSS-DOMAIN -10 AS2111 AS for BELNET sites connected to -8 AS2611 AS for BELNET sites connected to -5 AS2048 LANET-1 -4 AS517 XLINK-UKA -3 AS2505 JNIC-ASN -2 AS1729 TIPnet (Unisource) -1 AS1322 NSFNETTEST27-AS Top 20 Added Routes from 28Sep94 to 05Oct94 75 AS1790 SPRINTLINK2 40 AS3741 IS 36 AS2149 PSINET-2 30 AS684 MBNET-AS 23 AS271 BCNET-AS 22 AS813 CANET-ASN 17 AS1324 NSFNETTEST29-AS 16 AS1717 RENATER 13 AS568 SUMNET-AS 11 AS1251 ANBR-AS 10 AS1327 NSFNETTEST32-AS 9 AS2493 FONOROLA-EAST 8 AS378 ILAN 7 AS2150 CSUNET-SW 6 AS1103 SURFnet IP 5 AS1225 CICNET3-AS 4 AS1759 The DataNet IP Service 3 AS3673 INTERACCESS 2 AS22 NOSC 1 AS2706 HKSUPER List of possibly interesting aggregates --------------------------------------- aggregate origin-AS AS Description 144.223.240.0/26 AS1239 SprintLink 144.228.73.96/30 AS3734 SJEN 157.166.47.0/24 AS1686 ANS-BLK1 199.201.64.6/31 AS3708 FF-ASN Here follows the last weeks "Top 20" list with the corresponding date. --- 05Oct94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1252 682 570 45.5% AlterNet AS174 1016 726 290 28.5% NYSERNET-AS AS560 622 433 189 30.4% NEARNET-EXT-AS AS1275 388 200 188 48.5% DFN-IP AS1250 327 145 182 55.7% SINGAPORE-AS AS2149 460 286 174 37.8% PSINET-2 AS279 509 363 146 28.7% SURANET-AS-2 AS1270 241 107 134 55.6% EUnet/DE AS97 421 302 119 28.3% JVNC-AS AS271 238 119 119 50.0% BCNET-AS AS372 442 328 114 25.8% NSN-AMES-AS AS86 440 331 109 24.8% SURANET-AS AS2150 209 111 98 46.9% CSUNET-SW AS2493 199 108 91 45.7% FONOROLA-EAST AS1955 150 77 73 48.7% HUNGARNET AS1329 129 60 69 53.5% NSFNETTEST34-AS AS137 186 118 68 36.6% GARR AS1225 322 254 68 21.1% CICNET3-AS AS376 131 64 67 51.1% RISQ-AS AS549 237 173 64 27.0% ONET-AS --- 04Oct94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1407 683 724 51.5% AlterNet AS174 1001 718 283 28.3% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 619 432 187 30.2% NEARNET-EXT-AS AS1250 311 142 169 54.3% SINGAPORE-AS AS2149 448 286 162 36.2% PSINET-2 AS279 503 357 146 29.0% SURANET-AS-2 AS1270 242 108 134 55.4% EUnet/DE AS271 238 119 119 50.0% BCNET-AS AS97 419 301 118 28.2% JVNC-AS AS86 447 334 113 25.3% SURANET-AS AS372 438 328 110 25.1% NSN-AMES-AS AS2150 201 106 95 47.3% CSUNET-SW AS2493 198 105 93 47.0% FONOROLA-EAST AS1955 151 78 73 48.3% HUNGARNET AS1329 129 60 69 53.5% NSFNETTEST34-AS AS1225 323 255 68 21.1% CICNET3-AS AS376 131 64 67 51.1% RISQ-AS AS137 180 114 66 36.7% GARR AS549 234 170 64 27.4% ONET-AS --- 03Oct94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1403 681 722 51.5% AlterNet AS174 954 704 250 26.2% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 621 435 186 30.0% NEARNET-EXT-AS AS1250 312 147 165 52.9% SINGAPORE-AS AS2149 444 280 164 36.9% PSINET-2 AS279 496 356 140 28.2% SURANET-AS-2 AS1270 242 108 134 55.4% EUnet/DE AS271 238 119 119 50.0% BCNET-AS AS97 414 298 116 28.0% JVNC-AS AS372 445 332 113 25.4% NSN-AMES-AS AS86 435 326 109 25.1% SURANET-AS AS2150 202 108 94 46.5% CSUNET-SW AS2493 168 83 85 50.6% FONOROLA-EAST AS1955 150 77 73 48.7% HUNGARNET AS1329 124 56 68 54.8% NSFNETTEST34-AS AS376 129 62 67 51.9% RISQ-AS AS137 182 115 67 36.8% GARR AS1225 318 253 65 20.4% CICNET3-AS AS549 234 170 64 27.4% ONET-AS --- 02Oct94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1403 681 722 51.5% AlterNet AS174 948 701 247 26.1% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 620 433 187 30.2% NEARNET-EXT-AS AS2149 450 280 170 37.8% PSINET-2 AS1250 302 149 153 50.7% SINGAPORE-AS AS279 499 359 140 28.1% SURANET-AS-2 AS1270 242 108 134 55.4% EUnet/DE AS271 237 118 119 50.2% BCNET-AS AS97 409 291 118 28.9% JVNC-AS AS86 436 327 109 25.0% SURANET-AS AS372 412 313 99 24.0% NSN-AMES-AS AS2150 202 108 94 46.5% CSUNET-SW AS2493 197 105 92 46.7% FONOROLA-EAST AS1955 150 77 73 48.7% HUNGARNET AS1329 124 56 68 54.8% NSFNETTEST34-AS AS1225 319 251 68 21.3% CICNET3-AS AS376 129 62 67 51.9% RISQ-AS AS137 181 114 67 37.0% GARR AS549 233 169 64 27.5% ONET-AS --- 01Oct94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1404 681 723 51.5% AlterNet AS174 957 713 244 25.5% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 619 433 186 30.0% NEARNET-EXT-AS AS1250 309 148 161 52.1% SINGAPORE-AS AS2149 435 286 149 34.3% PSINET-2 AS279 498 359 139 27.9% SURANET-AS-2 AS1270 242 108 134 55.4% EUnet/DE AS271 238 119 119 50.0% BCNET-AS AS97 415 299 116 28.0% JVNC-AS AS86 441 328 113 25.6% SURANET-AS AS372 437 327 110 25.2% NSN-AMES-AS AS2150 203 109 94 46.3% CSUNET-SW AS2493 196 104 92 46.9% FONOROLA-EAST AS1955 150 77 73 48.7% HUNGARNET AS137 184 115 69 37.5% GARR AS1329 129 60 69 53.5% NSFNETTEST34-AS AS1225 321 253 68 21.2% CICNET3-AS AS376 129 62 67 51.9% RISQ-AS AS549 234 170 64 27.4% ONET-AS --- 30Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1404 680 724 51.6% AlterNet AS174 1001 718 283 28.3% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 621 435 186 30.0% NEARNET-EXT-AS AS1250 316 141 175 55.4% SINGAPORE-AS AS2149 444 284 160 36.0% PSINET-2 AS279 493 354 139 28.2% SURANET-AS-2 AS1270 242 108 134 55.4% EUnet/DE AS372 441 330 111 25.2% NSN-AMES-AS AS97 409 301 108 26.4% JVNC-AS AS271 215 113 102 47.4% BCNET-AS AS86 407 306 101 24.8% SURANET-AS AS2150 201 108 93 46.3% CSUNET-SW AS2493 192 104 88 45.8% FONOROLA-EAST AS1955 150 77 73 48.7% Computer and Automation Institute AS1329 129 60 69 53.5% NSFNETTEST34-AS AS1225 320 252 68 21.2% CICNET3-AS AS376 129 62 67 51.9% RISQ-AS AS137 186 120 66 35.5% GARR AS549 233 169 64 27.5% ONET-AS --- 29Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1390 670 720 51.8% AlterNet AS174 1008 729 279 27.7% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 620 434 186 30.0% NEARNET-EXT-AS AS1250 308 146 162 52.6% SINGAPORE-AS AS2149 441 284 157 35.6% PSINET-2 AS279 498 358 140 28.1% SURANET-AS-2 AS1270 238 104 134 56.3% EUnet/DE AS97 411 296 115 28.0% JVNC-AS AS86 437 325 112 25.6% SURANET-AS AS372 439 330 109 24.8% NSN-AMES-AS AS271 214 112 102 47.7% BCNET-AS AS2150 201 108 93 46.3% CSUNET-SW AS2493 191 104 87 45.5% FONOROLA-EAST AS1239 395 315 80 20.3% SprintLink AS1955 150 77 73 48.7% Computer and Automation Institute AS1329 129 60 69 53.5% NSFNETTEST34-AS AS1225 313 245 68 21.7% CICNET3-AS AS376 129 62 67 51.9% RISQ-AS AS549 232 168 64 27.6% ONET-AS --- 28Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1387 674 713 51.4% AlterNet AS174 1013 732 281 27.7% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 621 434 187 30.1% NEARNET-EXT-AS AS279 558 390 168 30.1% SURANET-AS-2 AS1250 291 141 150 51.5% SINGAPORE-AS AS2149 424 283 141 33.3% PSINET-2 AS1270 242 108 134 55.4% EUnet/DE AS97 410 295 115 28.0% JVNC-AS AS372 440 330 110 25.0% NSN-AMES-AS AS86 432 324 108 25.0% SURANET-AS AS271 215 113 102 47.4% BCNET-AS AS2150 202 108 94 46.5% CSUNET-SW AS2493 190 107 83 43.7% FONOROLA-EAST AS1239 391 312 79 20.2% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 127 59 68 53.5% NSFNETTEST34-AS AS376 127 60 67 52.8% RISQ-AS AS1225 317 250 67 21.1% CICNET3-AS AS137 186 120 66 35.5% GARR

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Route flaps & inconsistent origins
by Havard Eidnes 01 Oct '94

01 Oct '94

Hi, we have had some problems recently apparently caused by route flapping, and this inspired me to create a setup where I can log the "route flaps of the world" and then do some perl programming to analyze the debug logs. After about a day of programming I now have a handfull of scripts which are able to post-process the output of "debug ip bgp updates" on a Cisco router. The router I am using to log this with has a direct peer with nord-gw.nordu.net, that should be taken into account when looking at the results (if I'm not mistaken, to some extent we'll see more local problems than those on remote networks). Processing yesterday's log (covering the interval Sep 29 04:05 to Sep 30 04:05) produced the following "top 20" list of ASes injecting route flaps as seen from our perspective: Origin(s) flaps retr unrch dests AS AS Description 544 26070 264 266 109 544 The DataNet IP Service 719 17035 1 1 13 719 LANLINK autonomous system 1740 11880 2624 2623 186 1740 CERFNET 1717 7716 2645 2639 574 1717 RENATER 1221:297 6626 1155 1157 254 1221 AARNET-AS 1221:297 6626 1155 1157 254 297 NSN-UMD-AS 174:2149 5263 1705 1704 140 2149 PSINET-2 174:2149 5263 1705 1704 140 174 NYSERNET-AS 86 2890 489 488 113 86 SURANET-AS 2149:174 2604 769 769 178 2149 PSINET-2 2149:174 2604 769 769 178 174 NYSERNET-AS 2551 2354 318 318 174 2551 NETCOM-AS 372:297 2342 333 333 109 372 NSN-AMES-AS 372:297 2342 333 333 109 297 NSN-UMD-AS 297:1221 2168 337 346 95 1221 AARNET-AS 297:1221 2168 337 346 95 297 NSN-UMD-AS 372 2024 393 392 311 372 NSN-AMES-AS 701 1664 525 525 170 701 AlterNet 813 1589 617 615 83 813 CANET-ASN 2915 1488 391 391 83 2915 SPIN-NET Legend: "Origin(s)" are the AS or ASes seen as "origin" of routing updates (essentially the last element in the logged path). "flaps" is the sum of "retr" and the number of times the route was updated (e.g. new path) "retr" is the number of times a route was withdrawn (retracted) "unrch" is the number of withdrawals which caused loss of connectivity for a destination "dests" is the number of destinations involved in route flaps Excluded from this picture are any routes involving as-sets (there are a number of routing flaps involving them as well, I'll see about analyzing them separately...). We are (as I write) trying to sort out the nordic-internal problem involving the two on the top of the list. One thing I want to draw to your attention, thogh, is the fact that many destinations are apparently originated by more than one AS. I was under the impression that this is an illegal or highly undesireable configuration. Attached below you will find a more detailed report showing the number of times each individual path was announced for each of the entries on the "top 20" list, I can also easily (on request) produce a "per-network" report for any given AS. It would seem that even beyond AS 1800 there are severe instabilities in the routing. Comments? - Havard PS. Maybe this should be redirected somewhere else than bgpd? nanog? iepg? PPS. I am willing to give away my scripts to anyone asking (privately) for them. Note that they're quick hacks and still evolving... ------------------------------ Origin(s) flaps retr unrch dests AS AS Description 544 26070 264 266 109 544 The DataNet IP Service Count Path 244 2603 1759 544 12734 2603 1741 1759 544 12840 2603 1741 544 5 2603 1805 1800 1239 1280 701 1759 544 Origin(s) flaps retr unrch dests AS AS Description 719 17035 1 1 13 719 LANLINK autonomous system Count Path 17045 2603 1741 719 1 2603 3224 2043 1128 286 790 719 Origin(s) flaps retr unrch dests AS AS Description 1740 11880 2624 2623 186 1740 CERFNET Count Path 1029 2603 1805 1800 1133 690 1740 5071 2603 1805 1800 690 1740 937 2603 1755 1800 690 1740 1947 2603 1805 1800 701 690 1740 173 2603 1755 1800 701 690 1740 51 2603 1755 1800 1133 690 1740 82 2603 1805 1800 1239 1280 1740 15 2603 1805 1800 1133 1674 690 1740 5 2603 1755 1800 1133 1674 690 1740 15 2603 1755 1800 1239 1280 1740 Origin(s) flaps retr unrch dests AS AS Description 1717 7716 2645 2639 574 1717 RENATER Count Path 2174 2603 3224 2043 1128 1755 1717 2486 2603 1755 1717 479 2603 3224 2043 1128 1133 1800 1755 1717 Origin(s) flaps retr unrch dests AS AS Description 1221:297 6626 1155 1157 254 1221 AARNET-AS Count Path 1885 2603 1805 1800 690 372 1221 846 2603 1805 1800 701 690 372 1221 272 2603 1805 1800 1133 690 372 1221 32 2603 1755 1800 701 690 372 1221 31 2603 1755 1800 690 372 1221 4 2603 1755 1800 1133 690 372 1221 1 2603 1805 1800 1239 1240 690 372 1221 1 2603 1755 1800 1239 1240 690 372 1221 Origin(s) flaps retr unrch dests AS AS Description 1221:297 6626 1155 1157 254 297 NSN-UMD-AS Count Path 582 2603 1805 1800 690 297 1035 2603 1805 1800 701 690 297 427 2603 1805 1800 1133 690 297 347 2603 1755 1800 701 690 297 6 2603 1755 1800 690 297 2 2603 1805 1800 1239 690 297 Origin(s) flaps retr unrch dests AS AS Description 174:2149 5263 1705 1704 140 2149 PSINET-2 Count Path 332 2603 1805 1800 1133 690 2149 397 2603 1805 1800 690 2149 154 2603 1805 1800 701 690 2149 58 2603 1755 1800 701 690 2149 93 2603 1755 1800 1133 690 2149 32 2603 1805 1800 1239 1240 690 2149 5 2603 1755 1800 1239 1240 690 2149 51 2603 1755 1800 690 2149 Origin(s) flaps retr unrch dests AS AS Description 174:2149 5263 1705 1704 140 174 NYSERNET-AS Count Path 1432 2603 1805 1800 174 335 2603 1755 1800 174 229 2603 1805 1800 690 174 113 2603 1805 1800 701 690 174 108 2603 3224 2043 1128 1133 1800 174 43 2603 1755 1800 690 174 22 2603 1755 1800 701 690 174 86 2603 1805 1800 1239 1280 174 33 2603 1755 1800 1239 1280 174 25 2603 1805 1800 1133 690 174 8 2603 1805 1800 690 701 174 2 2603 1755 1800 690 701 174 1 2603 1755 1800 1133 690 174 Origin(s) flaps retr unrch dests AS AS Description 86 2890 489 488 113 86 SURANET-AS Count Path 93 2603 1755 1800 86 857 2603 1805 1800 86 25 2603 1805 1800 690 279 86 352 2603 1805 1800 690 279 3561 86 84 2603 1805 1800 1133 690 279 3561 86 72 2603 1755 1800 690 279 3561 86 80 2603 1805 1800 701 690 86 674 2603 1805 1800 690 86 44 2603 1755 1800 690 86 32 2603 1805 1800 1239 1280 1957 690 279 3561 86 28 2603 1805 1800 1239 1280 1957 690 86 41 2603 1805 1800 1133 690 86 3 2603 1755 1800 1133 690 279 3561 86 3 2603 1755 1800 701 690 279 3561 86 5 2603 1755 1800 1239 1280 1957 690 279 3561 86 3 2603 1755 1800 690 279 86 2 2603 1805 1800 1133 690 279 86 12 2603 1805 1800 1239 1280 1957 690 279 86 3 2603 1805 1800 701 690 279 86 1 2603 1755 1800 701 690 86 2 2603 1755 1800 1239 1280 1957 690 86 1 2603 1755 1800 1239 1280 1957 690 279 86 Origin(s) flaps retr unrch dests AS AS Description 2149:174 2604 769 769 178 2149 PSINET-2 Count Path 220 2603 1805 1800 1133 690 2149 35 2603 1755 1800 1133 690 2149 116 2603 1805 1800 701 690 2149 215 2603 1805 1800 690 2149 37 2603 1755 1800 690 2149 27 2603 1755 1800 701 690 2149 8 2603 1805 1800 1239 1240 690 2149 2 2603 1755 1800 1239 1240 690 2149 2 2603 1805 1800 1133 1674 690 2149 Origin(s) flaps retr unrch dests AS AS Description 2149:174 2604 769 769 178 174 NYSERNET-AS Count Path 709 2603 1805 1800 174 47 2603 1805 1800 1239 1280 174 118 2603 1805 1800 690 174 158 2603 1755 1800 174 18 2603 1755 1800 1239 1280 174 55 2603 3224 2043 1128 1133 1800 174 42 2603 1805 1800 701 690 174 10 2603 1755 1800 701 690 174 13 2603 1755 1800 690 174 4 2603 1805 1800 1133 690 174 Origin(s) flaps retr unrch dests AS AS Description 2551 2354 318 318 174 2551 NETCOM-AS Count Path 708 2603 1805 1800 690 1321 2551 886 2603 1805 1800 2551 158 2603 1805 1800 701 690 2551 91 2603 1805 1800 690 2551 22 2603 1805 1800 701 690 1321 2551 93 2603 1755 1800 2551 30 2603 3224 2043 1128 1133 2551 20 2603 3224 2043 1128 1133 1800 2551 9 2603 1805 1800 1239 1280 2551 3 2603 1755 1800 701 690 2551 7 2603 1755 1800 690 1321 2551 2 2603 1755 1800 690 2551 3 2603 1805 1800 1133 690 1321 2551 3 2603 1755 1800 701 690 1321 2551 1 2603 1755 1800 1239 1280 2551 Origin(s) flaps retr unrch dests AS AS Description 372:297 2342 333 333 109 372 NSN-AMES-AS Count Path 163 2603 1805 1800 1133 690 372 1067 2603 1805 1800 690 372 407 2603 1805 1800 701 690 372 66 2603 1755 1800 701 690 372 51 2603 1755 1800 1133 690 372 64 2603 1755 1800 690 372 Origin(s) flaps retr unrch dests AS AS Description 372:297 2342 333 333 109 297 NSN-UMD-AS Count Path 182 2603 1805 1800 690 297 3 2603 1805 1800 1133 690 297 3 2603 1755 1800 690 297 3 2603 1805 1800 701 690 297 Origin(s) flaps retr unrch dests AS AS Description 297:1221 2168 337 346 95 1221 AARNET-AS Count Path 567 2603 1805 1800 690 372 1221 253 2603 1805 1800 701 690 372 1221 97 2603 1805 1800 1133 690 372 1221 1 2603 1755 1800 701 690 372 1221 Origin(s) flaps retr unrch dests AS AS Description 297:1221 2168 337 346 95 297 NSN-UMD-AS Count Path 93 2603 1755 1800 690 297 189 2603 1805 1800 690 297 249 2603 1805 1800 701 690 297 221 2603 1805 1800 1133 690 297 161 2603 1755 1800 701 690 297 Origin(s) flaps retr unrch dests AS AS Description 372 2024 393 392 311 372 NSN-AMES-AS Count Path 315 2603 1805 1800 1133 690 372 515 2603 1755 1800 690 372 614 2603 1805 1800 690 372 136 2603 1805 1800 701 690 372 50 2603 1755 1800 701 690 372 1 2603 1755 1800 1133 690 372 Origin(s) flaps retr unrch dests AS AS Description 701 1664 525 525 170 701 AlterNet Count Path 20 2603 1805 1800 1239 1280 701 590 2603 1805 1800 701 47 2603 3224 2043 1128 1133 1800 701 102 2603 1755 1800 701 59 2603 3224 2043 1128 1133 701 283 2603 1805 1800 690 701 39 2603 1805 1800 1133 1674 690 701 Origin(s) flaps retr unrch dests AS AS Description 813 1589 617 615 83 813 CANET-ASN Count Path 588 2603 1805 1800 701 813 232 2603 1755 1800 701 813 39 2603 1805 1800 1239 1280 701 813 47 2603 3224 2043 1128 1133 1800 701 813 48 2603 3224 2043 1128 1133 701 813 10 2603 1805 1800 690 701 813 8 2603 1755 1800 1239 1280 701 813 1 2603 1755 1800 690 701 813 2 2603 1805 1800 1133 690 701 813 Origin(s) flaps retr unrch dests AS AS Description 2915 1488 391 391 83 2915 SPIN-NET Count Path 121 2603 1805 1800 1133 690 2149 174 2713 2915 121 2603 1755 1800 1133 690 2149 174 2713 2915 375 2603 1755 1800 174 2713 2915 379 2603 1805 1800 174 2713 2915 12 2603 3224 2043 1128 1133 1800 174 2713 2915 44 2603 1805 1800 690 2149 174 2713 2915 39 2603 1805 1800 701 690 2149 174 2713 2915 1 2603 1805 1800 1239 1280 174 2713 2915 2 2603 1755 1800 1239 1280 174 2713 2915 3 2603 1755 1800 690 2149 174 2713 2915

2 1

The Top 20 and some deltas
by Tony Bates 28 Sep '94

28 Sep '94

This is an auto-generated mail on Wed Sep 28 21:10:00 MET 1994 As stated above this is auto-generated so it is not checked before it leaves my workstation. This is a list of the "Top 20" players who if CIDRizing at the AS level could make a significant gain in the size of Internet routing tables. This may be an over-estimation but it is hoped that this can act as an incentive for the "Top 20" and others to look at their CIDR capability. This report is available as: ftp://ftp.ripe.net/cidr/stats/Top-20.28Sep94 The current (and of course this one today) report is always accessible as: ftp://ftp.ripe.net/cidr/stats/Top-20 A full summary of all the ASes seen in the Internet can be seen by looking in: ftp://ftp.ripe.net/cidr/stats/AS* Please also find a summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does some indication of ASes participating in CIDR. More information can be found in: ftp://ftp.ripe.net/cidr/stats/Delta.* Also, for a short time this gives details of any possibly interesting aggregates currently seen in the routing. Interesting here means not a aggregate made as a set of classful routes. This a daily snapshot of changes in classfull routes being withdrawn and added. the deltas are calculated over a rolling 7 day period. Please bear in mind this is purely a "snapshot" and a large flucuation could be caused by a connectivity problem for example. However, this does give some indication of service providers that are moving to classless routing. Top 20 Withdrawn Routes from 21Sep94 to 28Sep94 -326 AS200 BARRNET-AS -290 AS1270 EUnet/DE -255 AS2149 PSINET-2 -115 AS681 KAWAIHIKO-1 -111 AS1849 PIPEX, Public IP EXchange -59 AS2871 MAZ/CLS -46 AS372 NSN-AMES-AS -33 AS297 NSN-UMD-AS -18 AS1221 AARNET-AS -14 AS542 ARNET -13 AS2873 Genesis Project Internet Service -11 AS279 SURANET-AS-2 -9 AS2611 AS for BELNET sites connected to -8 AS2637 GEORGIA-TECH -6 AS1334 NSFNETTEST39-AS -4 AS1327 NSFNETTEST32-AS -3 AS22 NOSC -2 AS1250 SINGAPORE-AS -1 AS685 NWNET-AS Top 20 Added Routes from 21Sep94 to 28Sep94 253 AS174 NYSERNET-AS 102 AS701 AlterNet 65 AS1275 DFN-IP 62 AS2572 MORENET 31 AS2552 WUSTL-ASN 29 AS1717 RENATER 25 AS1251 ANBR-AS 24 AS2907 SINET-AS 15 AS807 CANET-ASN 14 AS560 NEARNET-EXT-AS 12 AS1887 NASK 11 AS3559 KORNET 10 AS1836 EUnet/CH Autonomous System 9 AS378 ILAN 8 AS1204 SUNYNET-ASN-AS 7 AS2895 FREEnet 6 AS2150 CSUNET-SW 5 AS137 GARR 4 AS1967 TR-NET 3 AS271 BCNET-AS List of possibly interesting aggregates --------------------------------------- aggregate origin-AS AS Description 144.228.73.96/30 AS3734 SJEN 199.201.64.6/31 AS3708 FF-ASN Here follows the last weeks "Top 20" list with the corresponding date. --- 28Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1387 674 713 51.4% AlterNet AS174 1013 732 281 27.7% NYSERNET-AS AS1275 388 200 188 48.5% DFN-IP AS560 621 434 187 30.1% NEARNET-EXT-AS AS279 558 390 168 30.1% SURANET-AS-2 AS1250 291 141 150 51.5% SINGAPORE-AS AS2149 424 283 141 33.3% PSINET-2 AS1270 242 108 134 55.4% EUnet/DE AS97 410 295 115 28.0% JVNC-AS AS372 440 330 110 25.0% NSN-AMES-AS AS86 432 324 108 25.0% SURANET-AS AS271 215 113 102 47.4% BCNET-AS AS2150 202 108 94 46.5% CSUNET-SW AS2493 190 107 83 43.7% FONOROLA-EAST AS1239 391 312 79 20.2% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 127 59 68 53.5% NSFNETTEST34-AS AS376 127 60 67 52.8% RISQ-AS AS1225 317 250 67 21.1% CICNET3-AS AS137 186 120 66 35.5% GARR --- 27Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1387 670 717 51.7% AlterNet AS2149 1281 912 369 28.8% PSINET-2 AS560 615 431 184 29.9% NEARNET-EXT-AS AS1250 307 135 172 56.0% SINGAPORE-AS AS279 522 354 168 32.2% SURANET-AS-2 AS1270 241 107 134 55.6% EUnet/DE AS1275 325 200 125 38.5% DFN-IP AS97 410 295 115 28.0% JVNC-AS AS372 441 330 111 25.2% NSN-AMES-AS AS86 436 327 109 25.0% SURANET-AS AS271 215 113 102 47.4% BCNET-AS AS2150 197 104 93 47.2% CSUNET-SW AS2493 189 106 83 43.9% FONOROLA-EAST AS1239 391 312 79 20.2% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS376 128 61 67 52.3% RISQ-AS AS137 184 118 66 35.9% GARR AS1225 319 254 65 20.4% CICNET3-AS AS209 325 265 60 18.5% WESTNET-EAST --- 26Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1381 668 713 51.6% AlterNet AS174 950 734 216 22.7% NYSERNET-AS AS560 618 432 186 30.1% NEARNET-EXT-AS AS279 561 386 175 31.2% SURANET-AS-2 AS1250 286 132 154 53.8% SINGAPORE-AS AS2149 462 326 136 29.4% PSINET-2 AS1270 241 107 134 55.6% EUnet/DE AS1275 325 200 125 38.5% DFN-IP AS97 409 295 114 27.9% JVNC-AS AS86 437 326 111 25.4% SURANET-AS AS372 434 326 108 24.9% NSN-AMES-AS AS271 214 112 102 47.7% BCNET-AS AS2150 198 105 93 47.0% CSUNET-SW AS2493 183 99 84 45.9% FONOROLA-EAST AS1239 389 311 78 20.1% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS376 128 61 67 52.3% RISQ-AS AS1225 319 253 66 20.7% CICNET3-AS AS209 326 266 60 18.4% WESTNET-EAST --- 25Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1382 667 715 51.7% AlterNet AS1270 524 255 269 51.3% EUnet/DE AS560 618 430 188 30.4% NEARNET-EXT-AS AS279 562 384 178 31.7% SURANET-AS-2 AS2149 526 351 175 33.3% PSINET-2 AS174 868 707 161 18.5% NYSERNET-AS AS1250 277 134 143 51.6% SINGAPORE-AS AS1275 325 200 125 38.5% DFN-IP AS97 410 294 116 28.3% JVNC-AS AS86 436 325 111 25.5% SURANET-AS AS372 410 305 105 25.6% NSN-AMES-AS AS271 214 112 102 47.7% BCNET-AS AS2150 197 107 90 45.7% CSUNET-SW AS2493 185 99 86 46.5% FONOROLA-EAST AS1239 389 311 78 20.1% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS376 127 60 67 52.8% RISQ-AS AS1225 320 254 66 20.6% CICNET3-AS AS209 326 266 60 18.4% WESTNET-EAST --- 24Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1382 667 715 51.7% AlterNet AS1270 522 254 268 51.3% EUnet/DE AS2149 540 348 192 35.6% PSINET-2 AS560 617 430 187 30.3% NEARNET-EXT-AS AS279 565 390 175 31.0% SURANET-AS-2 AS174 867 697 170 19.6% NYSERNET-AS AS1250 287 135 152 53.0% SINGAPORE-AS AS1275 325 200 125 38.5% DFN-IP AS97 413 295 118 28.6% JVNC-AS AS86 436 325 111 25.5% SURANET-AS AS372 429 321 108 25.2% NSN-AMES-AS AS271 215 113 102 47.4% BCNET-AS AS2150 198 105 93 47.0% CSUNET-SW AS2493 192 105 87 45.3% FONOROLA-EAST AS1239 388 310 78 20.1% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS1225 320 252 68 21.2% CICNET3-AS AS376 128 61 67 52.3% RISQ-AS AS549 226 166 60 26.5% ONET-AS --- 23Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1343 661 682 50.8% AlterNet AS2149 663 399 264 39.8% PSINET-2 AS1270 504 253 251 49.8% EUnet/DE AS200 667 446 221 33.1% BARRNET-AS AS560 607 425 182 30.0% NEARNET-EXT-AS AS279 565 392 173 30.6% SURANET-AS-2 AS1250 288 135 153 53.1% SINGAPORE-AS AS174 753 612 141 18.7% NYSERNET-AS AS1275 325 200 125 38.5% DFN-IP AS372 497 378 119 23.9% NSN-AMES-AS AS97 411 294 117 28.5% JVNC-AS AS86 434 324 110 25.3% SURANET-AS AS271 212 112 100 47.2% BCNET-AS AS2150 187 99 88 47.1% CSUNET-SW AS2493 185 101 84 45.4% FONOROLA-EAST AS1239 388 310 78 20.1% SprintLink AS1955 149 77 72 48.3% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS1225 316 251 65 20.6% CICNET3-AS AS1849 269 205 64 23.8% PIPEX, Public IP EXchange --- 22Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1343 661 682 50.8% AlterNet AS2149 663 399 264 39.8% PSINET-2 AS1270 504 253 251 49.8% EUnet/DE AS200 667 446 221 33.1% BARRNET-AS AS560 607 425 182 30.0% NEARNET-EXT-AS AS279 565 392 173 30.6% SURANET-AS-2 AS1250 288 135 153 53.1% SINGAPORE-AS AS174 753 612 141 18.7% NYSERNET-AS AS1275 325 200 125 38.5% DFN-IP AS372 497 378 119 23.9% NSN-AMES-AS AS97 411 294 117 28.5% JVNC-AS AS86 434 324 110 25.3% SURANET-AS AS271 212 112 100 47.2% BCNET-AS AS2150 187 99 88 47.1% CSUNET-SW AS2493 185 101 84 45.4% FONOROLA-EAST AS1239 388 310 78 20.1% SprintLink AS1955 149 77 72 48.3% Computer and Automation Institute AS1329 126 58 68 54.0% NSFNETTEST34-AS AS1225 316 251 65 20.6% CICNET3-AS AS1849 269 205 64 23.8% PIPEX, Public IP EXchange --- 21Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1285 649 636 49.5% AlterNet AS1270 532 261 271 50.9% EUnet/DE AS2149 679 412 267 39.3% PSINET-2 AS200 664 444 220 33.1% BARRNET-AS AS560 607 431 176 29.0% NEARNET-EXT-AS AS279 569 397 172 30.2% SURANET-AS-2 AS1250 293 131 162 55.3% SINGAPORE-AS AS174 760 603 157 20.7% NYSERNET-AS AS1275 323 198 125 38.7% DFN-IP AS372 486 363 123 25.3% NSN-AMES-AS AS97 410 293 117 28.5% JVNC-AS AS86 432 324 108 25.0% SURANET-AS AS271 212 112 100 47.2% BCNET-AS AS681 229 130 99 43.2% KAWAIHIKO-1 AS2150 196 104 92 46.9% CSUNET-SW AS2493 187 103 84 44.9% FONOROLA-EAST AS1239 387 309 78 20.2% SprintLink AS1955 149 77 72 48.3% Computer and Automation Institute AS1329 125 58 67 53.6% NSFNETTEST34-AS AS1225 317 252 65 20.5% CICNET3-AS

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Ripe Routing WG minutes
by jimi＠dxcoms.cern.ch 23 Sep '94

23 Sep '94

Here are the minutes of the last meeting. Comment/corrections welcome, -- Jean-Michel RIPE Routing-WG Draft Minutes Lisbon, Tuesday September 13th 1994 Minutes: Jean-Michel Jouanigot, Gilles Farrache (scribe) 0. Previous minutes, agenda. The previous minutes and the agenda were approved. Gilles Farrache volunteered once again (?) as a scribe. 1. Ripe-81++ and companion documents Reading: URL ftp://ftp.ripe.net/ripe/drafts/ripe-81++.{txt,ps} 1.1 Summary of changes since last version of the draft Reading: URL ftp://ftp.ripe.net/ripe/drafts/ripe-81++.changes.{txt,ps} Tony Bates presented the modifications added into the Ripe-81 draft document since the Working group meeting in Amsterdam: - Network lists have been added - More information on the default route generation - "sugar" added - as-reject is renamed as-exclude - line wrapping feature - 'Component' attribute is replaced by 'withdrawn' and 'hole' - A new router object has been created: inet-rtr - The evaluation of the various operators (OR, AND,...) has been clarified - An 'as-name' attribute has been added to the aut-num object (optional, for transition reasons, but will become mandatory) The Working group unanimously agreed these modifications. 1.2 Outstanding issues: interas-in/out and as-in/out The interas-in/out attribute in the aut-num object is needed to represent local policies between two ASes peering at several points. The possibility to merge the as-in/out and interas-in/out attributes was rejected because of clarity and the fact that only the global policy (expressed in as-in/out) is relevant to other ASes. To identify a peering, the local and remote ID routers are needed (ID means here the interface addresses, not the BGP router ID). A syntax was agreed for the interas-in/out attribute: interas-in: [from] ASxxx <local id> <neighbor id> <pref> <policy> It was agreed that both <local id> and <neighbor id> are mandatory. It was also noted that as-in/out attributes can be filled automatically if only the interas-in/out attributes are present. This is an implementation issue when registering and object, but the output of a database query MUST contain the corresponding as-in/out attribute when an interas-in/out attribute is present. It was agreed that these decisions should be integrated into the current draft (or clarified when already present); this draft will be presented as the final document to RIPE, sent to the list, and hopefully agreed. Deadline for comments was fixed to Friday September 30th 1994. The final Ripe-81++ document will be renamed Ripe-181. It also was proposed to publish this document more widely (i.e. FYI) so that other routing registries may join the effort. Final decision will be taken when the final document is approved. 2. Router object Reading: URL ftp://ftp.ripe.net/ripe/drafts/inet-rtr.ps The previous 'inetnum:' object used to have an 'ias-int' attribute to help the tools (i.e. prtraceroute) to determine which AS a router interface belongs to. In the new database model, a new object describing the internet routers has been created to register this information as well as peering relationships. It was proposed and agreed to also register the network mask for an interface using the syntax: ifaddr: <address> mask <mask> It was also agreed that the list of routing protocols allowed in the peering information should be flexible, and that IGP was too generic. Using the name (and sometimes version) of the protocol helps in determining if the routing protocol is CIDR capable or not. The Working Group unanimously agreed that this object should not be used for the configuration of routers. It was agree to propose these extensions to the Database Working group ask them to approve the changes urgently. 3. AOB The chairman thanked the working group members for their active participation, Merit for their very valuable input and the PRIDE project for its essential contribution to this work. A new charter for the group is to be proposed. Comments/suggestions should be sent to the list. [eof]

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Re: The Top 20 and some deltas
by ops＠barrnet.net 22 Sep '94

22 Sep '94

Tony- Can you give me the raw data which shows the recent BARRNet jump onto this list? As far as I know, there have been no recent events that would have caused us to add several hundred routes. Also, what is the AS path of the "interesting" routes: 131.119.9.0/24 AS199 BARRNET-AS 131.119.12.0/24 AS199 BARRNET-AS 131.119.76.0/24 AS199 BARRNET-AS 131.119.77.0/24 AS199 BARRNET-AS ? These should not be propagated beyond ENSS128 and ENSS144, suggesting that we have a configuration problem somewhere. Thanks, --Vince

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Re: The Top 20 and some deltas
by Vadim Antonov 21 Sep '94

21 Sep '94

>Definately, as is stated very clearly in report - it is a snapshot. I understand that this is a snapshot. However i don't like flops of 600+ routes. I was wondering why my routers keep running out of memory. I hoped i had a month more to shuffle the circuits. Thanks for the explanations. --vadim

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Re: The Top 20 and some deltas
by Vadim Antonov 21 Sep '94

21 Sep '94

Fedor, please check it because few our 16meg routers ran out of memory, and we didn't complete upgrades yet. --vadim

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Re: The Top 20 and some deltas
by Vadim Antonov 21 Sep '94

21 Sep '94

>Please don't speak for AlterNet. I don't (i apologise if anybody got a wrong impression). But we derfinitely have a BIG problem. Regards, --vadim

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Re: The Top 20 and some deltas
by Vadim Antonov 21 Sep '94

21 Sep '94

>Top 20 Added Routes from 14Sep94 to 21Sep94 > 625 AS2149 PSINET-2 PSI -- if you won't aggregate your routes we will drop peering with you and will have ANS to proxy-aggregate your blocks. I think Alternet people will do the same. --vadim

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