- routing-wg - mailman.ripe.net

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sum of "retr" and the number of times the route was updated (e.g. new path) "retr" is the number of times a route was withdrawn (retracted) "unrch" is the number of withdrawals which caused loss of connectivity for a destination "dests" is the number of destinations involved in route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

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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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The Top 20 and some deltas
by Tony Bates 21 Sep '94

21 Sep '94

This is an auto-generated mail on Wed Sep 21 21:10:00 MET DST 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-20.21Sep94 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 14Sep94 to 21Sep94 -352 AS174 NYSERNET-AS -188 AS1221 AARNET-AS -55 AS3221 EENet Autonomous System -44 AS3251 Centro de Calculo da Faculdade de -29 AS1251 ANBR-AS -22 AS2702 INTERSERVE -19 AS701 AlterNet -18 AS279 SURANET-AS-2 -17 AS2380 ESTNET Autonomous System -10 AS19 CSS-DOMAIN -9 AS1887 NASK -7 AS1225 CICNET3-AS -5 AS2637 GEORGIA-TECH -4 AS1237 EUNSOL-AS -3 AS271 BCNET-AS -2 AS2548 DIGEX-AS -1 AS1327 NSFNETTEST32-AS Top 20 Added Routes from 14Sep94 to 21Sep94 625 AS2149 PSINET-2 41 AS3749 TECNET 34 AS86 SURANET-AS 25 AS1250 SINGAPORE-AS 22 AS378 ILAN 14 AS2871 MAZ/CLS 12 AS1982 ASN-NWNEXUS 10 AS2493 FONOROLA-EAST 9 AS2907 SINET-AS 8 AS372 NSN-AMES-AS 7 AS813 CANET-ASN 6 AS1270 EUnet/DE 5 AS1729 TIPnet (Unisource) 4 AS3407 INTERPATH-NC 3 AS1967 TR-NET 2 AS685 NWNET-AS 1 AS22 NOSC List of possibly interesting aggregates --------------------------------------- aggregate origin-AS AS Description 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 149.149.11.0/24 AS3749 TECNET 149.149.19.0/24 AS3749 TECNET 149.149.25.0/24 AS3749 TECNET 149.149.33.0/24 AS3749 TECNET 149.149.34.0/24 AS3749 TECNET 149.149.35.0/24 AS3749 TECNET 149.149.36.0/24 AS3749 TECNET 149.149.37.0/24 AS3749 TECNET 149.149.38.0/24 AS3749 TECNET 149.149.39.0/24 AS3749 TECNET 149.149.42.0/24 AS3749 TECNET 149.149.251.0/24 AS3749 TECNET 149.149.252.0/24 AS3749 TECNET 149.149.253.0/24 AS3749 TECNET 149.149.254.0/24 AS3749 TECNET 151.141.4.0/22 AS3749 TECNET 151.141.8.0/22 AS3749 TECNET 151.141.12.0/22 AS3749 TECNET 151.141.16.0/22 AS3749 TECNET 194.46.1.4/30 AS2873 Genesis Project Internet Servi 194.46.17.4/30 AS2873 Genesis Project Internet Servi 198.146.21.4/30 AS3749 TECNET 198.146.21.8/30 AS3749 TECNET 198.146.21.12/30 AS3749 TECNET 198.146.21.16/30 AS3749 TECNET 198.146.21.20/30 AS3749 TECNET 198.146.21.24/30 AS3749 TECNET 198.146.21.32/30 AS3749 TECNET 198.146.21.36/30 AS3749 TECNET 198.146.21.44/30 AS3749 TECNET 198.146.21.48/30 AS3749 TECNET 198.146.21.56/30 AS3749 TECNET 198.146.21.60/30 AS3749 TECNET 198.146.21.64/30 AS3749 TECNET 198.146.21.68/30 AS3749 TECNET 198.146.21.72/30 AS3749 TECNET 198.146.21.76/30 AS3749 TECNET 198.146.21.80/30 AS3749 TECNET 198.146.21.84/30 AS3749 TECNET 199.201.64.6/31 AS3708 FF-ASN Here follows the last weeks "Top 20" list with the corresponding date. --- 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 --- 20Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1336 659 677 50.7% AlterNet AS2149 677 405 272 40.2% PSINET-2 AS1270 531 260 271 51.0% EUnet/DE AS200 652 435 217 33.3% BARRNET-AS AS560 607 431 176 29.0% NEARNET-EXT-AS AS279 562 389 173 30.8% SURANET-AS-2 AS174 751 598 153 20.4% NYSERNET-AS AS1250 270 130 140 51.9% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 527 405 122 23.1% AARNET-AS AS97 411 293 118 28.7% JVNC-AS AS372 465 352 113 24.3% NSN-AMES-AS AS86 429 321 108 25.2% SURANET-AS AS271 212 112 100 47.2% BCNET-AS AS681 224 128 96 42.9% KAWAIHIKO-1 AS2150 201 106 95 47.3% CSUNET-SW AS2493 188 101 87 46.3% FONOROLA-EAST AS1239 386 309 77 19.9% SprintLink AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 125 58 67 53.6% NSFNETTEST34-AS --- 19Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1335 657 678 50.8% AlterNet AS1270 528 259 269 50.9% EUnet/DE AS2149 664 398 266 40.1% PSINET-2 AS200 659 441 218 33.1% BARRNET-AS AS560 607 431 176 29.0% NEARNET-EXT-AS AS279 595 419 176 29.6% SURANET-AS-2 AS1250 270 131 139 51.5% SINGAPORE-AS AS174 729 595 134 18.4% NYSERNET-AS AS1275 323 198 125 38.7% DFN-IP AS1221 533 409 124 23.3% AARNET-AS AS97 406 292 114 28.1% JVNC-AS AS86 422 314 108 25.6% SURANET-AS AS372 453 350 103 22.7% NSN-AMES-AS AS271 215 115 100 46.5% BCNET-AS AS681 226 127 99 43.8% KAWAIHIKO-1 AS2150 199 107 92 46.2% CSUNET-SW AS2493 185 101 84 45.4% FONOROLA-EAST AS1239 382 305 77 20.2% SprintLink AS1955 147 75 72 49.0% Computer and Automation Institute AS1329 125 58 67 53.6% NSFNETTEST34-AS --- 18Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1335 657 678 50.8% AlterNet AS1270 528 259 269 50.9% EUnet/DE AS2149 663 399 264 39.8% PSINET-2 AS200 659 442 217 32.9% BARRNET-AS AS279 598 422 176 29.4% SURANET-AS-2 AS560 606 431 175 28.9% NEARNET-EXT-AS AS174 737 598 139 18.9% NYSERNET-AS AS1250 254 127 127 50.0% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 510 392 118 23.1% AARNET-AS AS97 407 293 114 28.0% JVNC-AS AS86 419 311 108 25.8% SURANET-AS AS372 457 351 106 23.2% NSN-AMES-AS AS271 215 115 100 46.5% BCNET-AS AS681 227 128 99 43.6% KAWAIHIKO-1 AS2150 199 107 92 46.2% CSUNET-SW AS2493 179 100 79 44.1% FONOROLA-EAST AS1239 385 308 77 20.0% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1225 315 247 68 21.6% CICNET3-AS --- 17Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1335 657 678 50.8% AlterNet AS1270 528 259 269 50.9% EUnet/DE AS2149 674 407 267 39.6% PSINET-2 AS200 662 443 219 33.1% BARRNET-AS AS279 600 420 180 30.0% SURANET-AS-2 AS560 605 432 173 28.6% NEARNET-EXT-AS AS1250 286 132 154 53.8% SINGAPORE-AS AS174 741 602 139 18.8% NYSERNET-AS AS1275 323 198 125 38.7% DFN-IP AS1221 522 398 124 23.8% AARNET-AS AS97 408 293 115 28.2% JVNC-AS AS372 466 356 110 23.6% NSN-AMES-AS AS86 423 317 106 25.1% SURANET-AS AS681 227 128 99 43.6% KAWAIHIKO-1 AS271 214 117 97 45.3% BCNET-AS AS2150 200 105 95 47.5% CSUNET-SW AS2493 185 101 84 45.4% FONOROLA-EAST AS1239 382 306 76 19.9% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1225 316 248 68 21.5% CICNET3-AS --- 16Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1330 657 673 50.6% AlterNet AS174 1407 1006 401 28.5% NYSERNET-AS AS1270 526 257 269 51.1% EUnet/DE AS200 663 444 219 33.0% BARRNET-AS AS560 606 431 175 28.9% NEARNET-EXT-AS AS279 597 422 175 29.3% SURANET-AS-2 AS1250 279 124 155 55.6% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 529 405 124 23.4% AARNET-AS AS97 405 289 116 28.6% JVNC-AS AS372 483 370 113 23.4% NSN-AMES-AS AS86 422 316 106 25.1% SURANET-AS AS271 215 115 100 46.5% BCNET-AS AS681 229 130 99 43.2% KAWAIHIKO-1 AS2150 200 105 95 47.5% CSUNET-SW AS2493 178 97 81 45.5% FONOROLA-EAST AS1239 386 306 80 20.7% SprintLink AS1955 148 76 72 48.6% Computer and Automation Institute AS1225 320 249 71 22.2% CICNET3-AS AS1329 125 58 67 53.6% NSFNETTEST34-AS --- 15Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1319 650 669 50.7% AlterNet AS174 1419 1000 419 29.5% NYSERNET-AS AS1270 526 257 269 51.1% EUnet/DE AS200 631 423 208 33.0% BARRNET-AS AS560 604 431 173 28.6% NEARNET-EXT-AS AS279 590 421 169 28.6% SURANET-AS-2 AS1250 276 128 148 53.6% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 526 405 121 23.0% AARNET-AS AS372 463 351 112 24.2% NSN-AMES-AS AS97 399 288 111 27.8% JVNC-AS AS271 214 114 100 46.7% BCNET-AS AS681 229 130 99 43.2% KAWAIHIKO-1 AS2150 197 103 94 47.7% CSUNET-SW AS86 395 309 86 21.8% SURANET-AS AS1239 385 304 81 21.0% SprintLink AS2493 176 97 79 44.9% FONOROLA-EAST AS1955 146 75 71 48.6% Computer and Automation Institute AS1225 320 249 71 22.2% CICNET3-AS AS1329 125 58 67 53.6% NSFNETTEST34-AS --- 14Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1304 646 658 50.5% AlterNet AS174 1112 833 279 25.1% NYSERNET-AS AS1270 526 256 270 51.3% EUnet/DE AS200 662 444 218 32.9% BARRNET-AS AS560 604 432 172 28.5% NEARNET-EXT-AS AS279 587 419 168 28.6% SURANET-AS-2 AS1250 268 123 145 54.1% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS372 478 359 119 24.9% NSN-AMES-AS AS1221 524 406 118 22.5% AARNET-AS AS97 405 292 113 27.9% JVNC-AS AS681 230 128 102 44.3% KAWAIHIKO-1 AS271 215 115 100 46.5% BCNET-AS AS2150 198 104 94 47.5% CSUNET-SW AS86 398 306 92 23.1% SURANET-AS AS2493 177 96 81 45.8% FONOROLA-EAST AS1239 388 307 81 20.9% SprintLink AS1955 146 75 71 48.6% Computer and Automation Institute AS1225 324 256 68 21.0% CICNET3-AS AS1329 125 58 67 53.6% NSFNETTEST34-AS

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Document update
by Tony Bates 16 Sep '94

16 Sep '94

As agreed at the last RIPE meeting, we have made updates to the following documents and moved them to final draft to be released as RIPE documents on the 30th September. They are as follows RIPE-81++ --------- ftp://ftp.ripe.net/ripe/drafts/ripe-81++.{ps,txt} Classless Representation ------------------------ ftp://ftp.ripe.net/ripe/drafts/clarep.{ps,txt} Authorization ------------- ftp://ftp.ripe.net/ripe/drafts/ripe-auth.{ps,txt} Transition Plan --------------- ftp://ftp.ripe.net/ripe/drafts/db-trans.{ps,txt} Inet-rtr object ---------------- ftp://ftp.ripe.net/ripe/drafts/inet-rtr.{ps,txt} Update to inetnum ----------------- ftp://ftp.ripe.net/ripe/drafts/ripe-inetnum.{ps,txt} Also, find the start of the experimental objects and attributes document for ripe-81++ extensions. ftp://ftp.ripe.net/ripe/drafts/experimental.{ps,txt} This is a placeholder for a more involved document to follow. Please make sure all comments are sent within two weeks. This message will also be sent to all AS and Community guardians. Apologies for any duplication but we want to make sure we reach all parties involved. --Tony, Marten and Daniel.

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