This is an auto-generated mail on Wed Sep 7 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-20.07Sep94 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seen by looking in: ftp://ftp.ripe.net/cidr/stats/AS* Please also find a summary of the last weeks changes in terms of withdrawn and added routes.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 chuck of classful routes. This a daily snaphost of changes in classfull routes being withdrawn and added.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 Top 20 Withdrawn Routes from 31Aug94 to 07Sep94 -654 AS372 NSN-AMES-AS -108 AS3559 KORNET -91 AS1899 Fnet, EUnet-France -78 AS86 SURANET-AS -64 AS297 NSN-UMD-AS -52 AS2119 TelePost IP net -49 AS279 SURANET-AS-2 -40 AS1740 CERFNET -23 AS568 SUMNET-AS -20 AS2702 INTERSERVE -19 AS2134 EUnet-SPAIN AS -16 AS2018 UNINET-ZA -14 AS1251 ANBR-AS -12 AS2895 FREEnet -10 AS2125 EUNET-WIN -8 AS517 XLINK-UKA -7 AS3113 DOC-ESA-ASN -6 AS1849 PIPEX, Public IP EXchange -5 AS555 MSCNET-AS -4 AS1206 PSCNET-HS-AS Top 20 Added Routes from 31Aug94 to 07Sep94 516 AS1221 AARNET-AS 75 AS1717 RENATER 26 AS1237 EUNSOL-AS 23 AS164 DDN-MB-AS 22 AS1955 Computer and Automation Institute 17 AS97 JVNC-AS 16 AS701 AlterNet 12 AS560 NEARNET-EXT-AS 11 AS1270 EUnet/DE 9 AS2150 CSUNET-SW 8 AS544 The DataNet IP Service 7 AS813 CANET-ASN 6 AS1902 CESNET backbone A - EBONE 5 AS55 UPENN-CIS 4 AS771 NSN-RICE-AS 3 AS2111 AS for BELNET sites connected to 2 AS2277 ECUANET 1 AS2706 HKSUPER List of possibly interesting aggregates --------------------------------------- aggregate origin-AS AS Description 157.166.2.0/24 AS1685 ANS-BLK1 157.166.102.0/24 AS1685 ANS-BLK1 157.166.134.0/24 AS1685 ANS-BLK1 157.166.144.0/24 AS1686 ANS-BLK1 157.166.152.0/24 AS1686 ANS-BLK1 157.166.208.0/24 AS1686 ANS-BLK1 193.195.1.4/30 AS786 The JANET IP Service 194.46.1.4/30 AS2873 Genesis Project Internet Servi 194.46.17.4/30 AS2873 Genesis Project Internet Servi Here follows the last weeks "Top 20" list with the corresponding date. --- 07Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1291 642 649 50.3% AlterNet AS174 1389 970 419 30.2% NYSERNET-AS AS1270 489 251 238 48.7% EUnet/DE AS560 607 432 175 28.8% NEARNET-EXT-AS AS1250 252 126 126 50.0% SINGAPORE-AS AS1275 320 197 123 38.4% DFN-IP AS1221 520 400 120 23.1% AARNET-AS AS279 448 329 119 26.6% SURANET-AS-2 AS97 392 279 113 28.8% JVNC-AS AS372 480 368 112 23.3% NSN-AMES-AS AS681 223 124 99 44.4% KAWAIHIKO-1 AS271 203 106 97 47.8% BCNET-AS AS2150 193 103 90 46.6% CSUNET-SW AS1955 166 80 86 51.8% Computer and Automation Institute AS786 299 218 81 27.1% The JANET IP Service AS2493 160 84 76 47.5% FONOROLA-EAST AS1239 377 301 76 20.2% SprintLink AS1329 122 55 67 54.9% NSFNETTEST34-AS AS1225 321 254 67 20.9% CICNET3-AS AS209 321 259 62 19.3% WESTNET-EAST --- 06Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1288 641 647 50.2% AlterNet AS174 1333 954 379 28.4% NYSERNET-AS AS1270 486 250 236 48.6% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS2907 358 193 165 46.1% SINET-AS AS1250 259 119 140 54.1% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 522 400 122 23.4% AARNET-AS AS97 400 286 114 28.5% JVNC-AS AS1717 565 452 113 20.0% RENATER AS372 484 372 112 23.1% NSN-AMES-AS AS279 432 325 107 24.8% SURANET-AS-2 AS681 225 124 101 44.9% KAWAIHIKO-1 AS271 208 111 97 46.6% BCNET-AS AS2150 192 103 89 46.4% CSUNET-SW AS1239 384 301 83 21.6% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 160 84 76 47.5% FONOROLA-EAST AS1955 147 75 72 49.0% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS --- 05Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1287 640 647 50.3% AlterNet AS174 1319 941 378 28.7% NYSERNET-AS AS372 1204 863 341 28.3% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS97 403 287 116 28.8% JVNC-AS AS1717 558 445 113 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 192 103 89 46.4% CSUNET-SW AS1239 384 301 83 21.6% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 161 85 76 47.2% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 261 197 64 24.5% PIPEX, Public IP EXchange AS209 319 257 62 19.4% WESTNET-EAST AS2044 129 69 60 46.5% WORLDNET-AS AS137 175 115 60 34.3% GARR --- 04Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1287 640 647 50.3% AlterNet AS174 1278 923 355 27.8% NYSERNET-AS AS372 1063 776 287 27.0% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS1250 241 123 118 49.0% SINGAPORE-AS AS97 402 288 114 28.4% JVNC-AS AS1717 561 447 114 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 193 104 89 46.1% CSUNET-SW AS1239 380 297 83 21.8% SprintLink AS786 299 218 81 27.1% The JANET IP Service AS2493 161 85 76 47.2% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 260 197 63 24.2% PIPEX, Public IP EXchange AS209 320 258 62 19.4% WESTNET-EAST AS2044 128 68 60 46.9% WORLDNET-AS --- 03Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1288 641 647 50.2% AlterNet AS174 1346 962 384 28.5% NYSERNET-AS AS372 1206 860 346 28.7% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS1250 244 119 125 51.2% SINGAPORE-AS AS97 406 289 117 28.8% JVNC-AS AS1717 562 448 114 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 186 98 88 47.3% CSUNET-SW AS1239 365 283 82 22.5% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 162 86 76 46.9% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 261 197 64 24.5% PIPEX, Public IP EXchange AS209 318 258 60 18.9% WESTNET-EAST AS2044 130 70 60 46.2% WORLDNET-AS --- 02Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 920 372 548 59.6% AlterNet AS372 828 533 295 35.6% NSN-AMES-AS AS1270 485 248 237 48.9% EUnet/DE AS2149 585 384 201 34.4% PSINET-2 AS1717 592 456 136 23.0% RENATER AS1275 323 198 125 38.7% DFN-IP AS2150 166 81 85 51.2% CSUNET-SW AS786 300 219 81 27.0% The JANET IP Service AS1239 337 260 77 22.8% SprintLink AS271 144 69 75 52.1% BCNET-AS AS1955 146 74 72 49.3% Computer and Automation Institute AS2493 142 74 68 47.9% FONOROLA-EAST AS1329 104 41 63 60.6% NSFNETTEST34-AS AS560 290 228 62 21.4% NEARNET-EXT-AS AS2044 130 70 60 46.2% WORLDNET-AS AS137 179 119 60 33.5% GARR AS1849 250 191 59 23.6% PIPEX, Public IP EXchange AS86 207 155 52 25.1% SURANET-AS AS1225 209 157 52 24.9% CICNET3-AS AS97 193 145 48 24.9% JVNC-AS --- 01Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 920 372 548 59.6% AlterNet AS372 828 533 295 35.6% NSN-AMES-AS AS1270 485 248 237 48.9% EUnet/DE AS2149 585 384 201 34.4% PSINET-2 AS1717 592 456 136 23.0% RENATER AS1275 323 198 125 38.7% DFN-IP AS2150 166 81 85 51.2% CSUNET-SW AS786 300 219 81 27.0% The JANET IP Service AS1239 337 260 77 22.8% SprintLink AS271 144 69 75 52.1% BCNET-AS AS1955 146 74 72 49.3% Computer and Automation Institute AS2493 142 74 68 47.9% FONOROLA-EAST AS1329 104 41 63 60.6% NSFNETTEST34-AS AS560 290 228 62 21.4% NEARNET-EXT-AS AS2044 130 70 60 46.2% WORLDNET-AS AS137 179 119 60 33.5% GARR AS1849 250 191 59 23.6% PIPEX, Public IP EXchange AS86 207 155 52 25.1% SURANET-AS AS1225 209 157 52 24.9% CICNET3-AS AS97 193 145 48 24.9% JVNC-AS --- 31Aug94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1275 643 632 49.6% AlterNet AS174 1363 971 392 28.8% NYSERNET-AS AS372 1134 819 315 27.8% NSN-AMES-AS AS1270 478 247 231 48.3% EUnet/DE AS560 595 427 168 28.2% NEARNET-EXT-AS AS1250 255 117 138 54.1% SINGAPORE-AS AS279 497 364 133 26.8% SURANET-AS-2 AS1275 323 198 125 38.7% DFN-IP AS97 375 275 100 26.7% JVNC-AS AS271 205 111 94 45.9% BCNET-AS AS2150 184 96 88 47.8% CSUNET-SW AS786 299 218 81 27.1% The JANET IP Service AS1239 379 300 79 20.8% SprintLink AS2493 158 86 72 45.6% FONOROLA-EAST AS1955 144 73 71 49.3% Computer and Automation Institute AS86 350 282 68 19.4% SURANET-AS AS297 238 170 68 28.6% NSN-UMD-AS AS1329 122 55 67 54.9% NSFNETTEST34-AS AS1225 312 246 66 21.2% CICNET3-AS AS1849 262 198 64 24.4% PIPEX, Public IP EXchange
Tony Bates <Tony.Bates@ripe.net> writes: * * * Top 20 Withdrawn Routes from 31Aug94 to 07Sep94 * -654 AS372 NSN-AMES-AS * -108 AS3559 KORNET * -91 AS1899 Fnet, EUnet-France * -78 AS86 SURANET-AS * -64 AS297 NSN-UMD-AS * -52 AS2119 TelePost IP net * Top 20 Added Routes from 31Aug94 to 07Sep94 * 516 AS1221 AARNET-AS * 75 AS1717 RENATER * 26 AS1237 EUNSOL-AS My read on this is that AARNET routes have basically finally moved into their own AS out of the NASA AS at AMES. How soon before AARNET can fully aggregrate and also pull the more specifics of their exisiting aggregrates. Nice one. Just need to aggregate the other nets and pull the more specifics. ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 520 400 120 23.1% AARNET-AS Current aggregates coming from AARNET SR Aggregate Originator Start-Classful End-Classful P N -------------------------------------------------------------------------- Y 192.232.128.0/19 AS1221 192.232.128.0 192.232.159.0 32 1 Y 202.6.32.0/19 AS1221 202.6.32.0 202.6.63.0 32 1 Y 202.12.32.0/19 AS1221 202.12.32.0 202.12.63.0 32 16 Y 202.20.16.0/20 AS1221 202.20.16.0 202.20.31.0 16 16 Y 203.0.0.0/10 AS1221 203.0.0.0 203.63.255.0 16384 160 It should be noted I am not highlighting AARNET as a problem, totally the opposite in fact as I know AARNET are CIDR capable and their topology is perhaps the best example we have of seeing full aggregation for a complete continent ;-). Cheers, --Tony.
Tony, below I can see: AS137 175 115 60 34.3% GARR AS137 179 119 60 33.5% GARR AS137 179 119 60 33.5% GARR This means GARR is now required to do something about that, right? Is there a place where the actual network numbers considered to be CIDRable by our AS are detailed? Thanks in advance, Blasco
This is an auto-generated mail on Wed Sep 7 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-20.07Sep94
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 chuck of classful routes.
This a daily snaphost 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 31Aug94 to 07Sep94 -654 AS372 NSN-AMES-AS -108 AS3559 KORNET -91 AS1899 Fnet, EUnet-France -78 AS86 SURANET-AS -64 AS297 NSN-UMD-AS -52 AS2119 TelePost IP net -49 AS279 SURANET-AS-2 -40 AS1740 CERFNET -23 AS568 SUMNET-AS -20 AS2702 INTERSERVE -19 AS2134 EUnet-SPAIN AS -16 AS2018 UNINET-ZA -14 AS1251 ANBR-AS -12 AS2895 FREEnet -10 AS2125 EUNET-WIN -8 AS517 XLINK-UKA -7 AS3113 DOC-ESA-ASN -6 AS1849 PIPEX, Public IP EXchange -5 AS555 MSCNET-AS -4 AS1206 PSCNET-HS-AS
Top 20 Added Routes from 31Aug94 to 07Sep94 516 AS1221 AARNET-AS 75 AS1717 RENATER 26 AS1237 EUNSOL-AS 23 AS164 DDN-MB-AS 22 AS1955 Computer and Automation Institute 17 AS97 JVNC-AS 16 AS701 AlterNet 12 AS560 NEARNET-EXT-AS 11 AS1270 EUnet/DE 9 AS2150 CSUNET-SW 8 AS544 The DataNet IP Service 7 AS813 CANET-ASN 6 AS1902 CESNET backbone A - EBONE 5 AS55 UPENN-CIS 4 AS771 NSN-RICE-AS 3 AS2111 AS for BELNET sites connected to 2 AS2277 ECUANET 1 AS2706 HKSUPER
List of possibly interesting aggregates ---------------------------------------
aggregate origin-AS AS Description
157.166.2.0/24 AS1685 ANS-BLK1 157.166.102.0/24 AS1685 ANS-BLK1 157.166.134.0/24 AS1685 ANS-BLK1 157.166.144.0/24 AS1686 ANS-BLK1 157.166.152.0/24 AS1686 ANS-BLK1 157.166.208.0/24 AS1686 ANS-BLK1 193.195.1.4/30 AS786 The JANET IP Service 194.46.1.4/30 AS2873 Genesis Project Internet Servi 194.46.17.4/30 AS2873 Genesis Project Internet Servi
Here follows the last weeks "Top 20" list with the corresponding date.
--- 07Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1291 642 649 50.3% AlterNet AS174 1389 970 419 30.2% NYSERNET-AS AS1270 489 251 238 48.7% EUnet/DE AS560 607 432 175 28.8% NEARNET-EXT-AS AS1250 252 126 126 50.0% SINGAPORE-AS AS1275 320 197 123 38.4% DFN-IP AS1221 520 400 120 23.1% AARNET-AS AS279 448 329 119 26.6% SURANET-AS-2 AS97 392 279 113 28.8% JVNC-AS AS372 480 368 112 23.3% NSN-AMES-AS AS681 223 124 99 44.4% KAWAIHIKO-1 AS271 203 106 97 47.8% BCNET-AS AS2150 193 103 90 46.6% CSUNET-SW AS1955 166 80 86 51.8% Computer and Automation Institute AS786 299 218 81 27.1% The JANET IP Service AS2493 160 84 76 47.5% FONOROLA-EAST AS1239 377 301 76 20.2% SprintLink AS1329 122 55 67 54.9% NSFNETTEST34-AS AS1225 321 254 67 20.9% CICNET3-AS AS209 321 259 62 19.3% WESTNET-EAST
--- 06Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1288 641 647 50.2% AlterNet AS174 1333 954 379 28.4% NYSERNET-AS AS1270 486 250 236 48.6% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS2907 358 193 165 46.1% SINET-AS AS1250 259 119 140 54.1% SINGAPORE-AS AS1275 323 198 125 38.7% DFN-IP AS1221 522 400 122 23.4% AARNET-AS AS97 400 286 114 28.5% JVNC-AS AS1717 565 452 113 20.0% RENATER AS372 484 372 112 23.1% NSN-AMES-AS AS279 432 325 107 24.8% SURANET-AS-2 AS681 225 124 101 44.9% KAWAIHIKO-1 AS271 208 111 97 46.6% BCNET-AS AS2150 192 103 89 46.4% CSUNET-SW AS1239 384 301 83 21.6% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 160 84 76 47.5% FONOROLA-EAST AS1955 147 75 72 49.0% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS
--- 05Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1287 640 647 50.3% AlterNet AS174 1319 941 378 28.7% NYSERNET-AS AS372 1204 863 341 28.3% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS97 403 287 116 28.8% JVNC-AS AS1717 558 445 113 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 192 103 89 46.4% CSUNET-SW AS1239 384 301 83 21.6% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 161 85 76 47.2% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 261 197 64 24.5% PIPEX, Public IP EXchange AS209 319 257 62 19.4% WESTNET-EAST AS2044 129 69 60 46.5% WORLDNET-AS AS137 175 115 60 34.3% GARR
--- 04Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1287 640 647 50.3% AlterNet AS174 1278 923 355 27.8% NYSERNET-AS AS372 1063 776 287 27.0% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS1250 241 123 118 49.0% SINGAPORE-AS AS97 402 288 114 28.4% JVNC-AS AS1717 561 447 114 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 193 104 89 46.1% CSUNET-SW AS1239 380 297 83 21.8% SprintLink AS786 299 218 81 27.1% The JANET IP Service AS2493 161 85 76 47.2% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 260 197 63 24.2% PIPEX, Public IP EXchange AS209 320 258 62 19.4% WESTNET-EAST AS2044 128 68 60 46.9% WORLDNET-AS
--- 03Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1288 641 647 50.2% AlterNet AS174 1346 962 384 28.5% NYSERNET-AS AS372 1206 860 346 28.7% NSN-AMES-AS AS1270 487 249 238 48.9% EUnet/DE AS560 603 433 170 28.2% NEARNET-EXT-AS AS1275 323 198 125 38.7% DFN-IP AS1250 244 119 125 51.2% SINGAPORE-AS AS97 406 289 117 28.8% JVNC-AS AS1717 562 448 114 20.3% RENATER AS279 433 326 107 24.7% SURANET-AS-2 AS271 208 111 97 46.6% BCNET-AS AS2150 186 98 88 47.3% CSUNET-SW AS1239 365 283 82 22.5% SprintLink AS786 301 220 81 26.9% The JANET IP Service AS2493 162 86 76 46.9% FONOROLA-EAST AS1955 146 74 72 49.3% Computer and Automation Institute AS1329 121 54 67 55.4% NSFNETTEST34-AS AS1849 261 197 64 24.5% PIPEX, Public IP EXchange AS209 318 258 60 18.9% WESTNET-EAST AS2044 130 70 60 46.2% WORLDNET-AS
--- 02Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 920 372 548 59.6% AlterNet AS372 828 533 295 35.6% NSN-AMES-AS AS1270 485 248 237 48.9% EUnet/DE AS2149 585 384 201 34.4% PSINET-2 AS1717 592 456 136 23.0% RENATER AS1275 323 198 125 38.7% DFN-IP AS2150 166 81 85 51.2% CSUNET-SW AS786 300 219 81 27.0% The JANET IP Service AS1239 337 260 77 22.8% SprintLink AS271 144 69 75 52.1% BCNET-AS AS1955 146 74 72 49.3% Computer and Automation Institute AS2493 142 74 68 47.9% FONOROLA-EAST AS1329 104 41 63 60.6% NSFNETTEST34-AS AS560 290 228 62 21.4% NEARNET-EXT-AS AS2044 130 70 60 46.2% WORLDNET-AS AS137 179 119 60 33.5% GARR AS1849 250 191 59 23.6% PIPEX, Public IP EXchange AS86 207 155 52 25.1% SURANET-AS AS1225 209 157 52 24.9% CICNET3-AS AS97 193 145 48 24.9% JVNC-AS
--- 01Sep94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 920 372 548 59.6% AlterNet AS372 828 533 295 35.6% NSN-AMES-AS AS1270 485 248 237 48.9% EUnet/DE AS2149 585 384 201 34.4% PSINET-2 AS1717 592 456 136 23.0% RENATER AS1275 323 198 125 38.7% DFN-IP AS2150 166 81 85 51.2% CSUNET-SW AS786 300 219 81 27.0% The JANET IP Service AS1239 337 260 77 22.8% SprintLink AS271 144 69 75 52.1% BCNET-AS AS1955 146 74 72 49.3% Computer and Automation Institute AS2493 142 74 68 47.9% FONOROLA-EAST AS1329 104 41 63 60.6% NSFNETTEST34-AS AS560 290 228 62 21.4% NEARNET-EXT-AS AS2044 130 70 60 46.2% WORLDNET-AS AS137 179 119 60 33.5% GARR AS1849 250 191 59 23.6% PIPEX, Public IP EXchange AS86 207 155 52 25.1% SURANET-AS AS1225 209 157 52 24.9% CICNET3-AS AS97 193 145 48 24.9% JVNC-AS
--- 31Aug94 --- ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1275 643 632 49.6% AlterNet AS174 1363 971 392 28.8% NYSERNET-AS AS372 1134 819 315 27.8% NSN-AMES-AS AS1270 478 247 231 48.3% EUnet/DE AS560 595 427 168 28.2% NEARNET-EXT-AS AS1250 255 117 138 54.1% SINGAPORE-AS AS279 497 364 133 26.8% SURANET-AS-2 AS1275 323 198 125 38.7% DFN-IP AS97 375 275 100 26.7% JVNC-AS AS271 205 111 94 45.9% BCNET-AS AS2150 184 96 88 47.8% CSUNET-SW AS786 299 218 81 27.1% The JANET IP Service AS1239 379 300 79 20.8% SprintLink AS2493 158 86 72 45.6% FONOROLA-EAST AS1955 144 73 71 49.3% Computer and Automation Institute AS86 350 282 68 19.4% SURANET-AS AS297 238 170 68 28.6% NSN-UMD-AS AS1329 122 55 67 54.9% NSFNETTEST34-AS AS1225 312 246 66 21.2% CICNET3-AS AS1849 262 198 64 24.4% PIPEX, Public IP EXchange
-- ---------- ---------- Antonio_Blasco Bonito E-Mail: bonito@nis.garr.it GARR - Network Information Service c=it;a=garr;p=garr;o=nis;s=bonito c/o CNUCE - Istituto del CNR Tel: +39 (50) 593246 Via S. Maria, 36 Telex: 500371 CNUCE I 56126 PISA Italy Fax: +39 (50) 904052 ---------- ----------
bonito@nis.garr.it (Antonio_Blasco Bonito) writes: * Tony, * * below I can see: * AS137 175 115 60 34.3% GARR * AS137 179 119 60 33.5% GARR * AS137 179 119 60 33.5% GARR * * This means GARR is now required to do something about that, right? Firstly, you are not required to do anything - I don't control the Internet ;-). However, this is just an indicator for "room for improvement" shall we say. You see it now as you have entered into the "top 20" - This has been this way for months, it is just the forst time you appear in my mailed report. * Is there a place where the actual network numbers considered to be CIDRable * by our AS are detailed? * Actually yes. For a while now I generate from your current list of announced networks the possible aggregates with ("no holes" I might add) and non-aggregatable networks. You can find this on (I enclose yours below) ftp://ftp.ripe.net/ripe/as/router/asdir/AS137.agg In fact, I do this for all ASes every day. It is a list of network statements which would be used in a cisco perhaps. Of course this should not be used directly as your cofiguration but does give you a generated list of networks after aggreation possibilities have been looked at. The original list of networks I get for AS137 are in the file. ftp://ftp.ripe.net/ripe/as/router/asdir/AS137 * Thanks in advance, * Blasco Thanks, --Tony. network 130.136.0.0 network 130.186.0.0 network 130.192.0.0 network 130.251.0.0 network 131.114.0.0 network 131.175.0.0 network 137.204.0.0 network 138.41.0.0 network 138.66.0.0 network 140.105.0.0 network 140.164.0.0 network 141.108.0.0 network 141.250.0.0 network 143.225.0.0 network 146.48.0.0 network 146.133.0.0 network 147.122.0.0 network 147.162.0.0 255.254.0.0 network 149.132.0.0 network 149.139.0.0 network 150.145.0.0 network 150.146.0.0 network 150.178.0.0 network 150.217.0.0 network 151.97.0.0 network 151.100.0.0 network 155.185.0.0 network 155.253.0.0 network 156.14.0.0 network 156.148.0.0 network 157.27.0.0 network 157.138.0.0 network 158.47.0.0 network 158.110.0.0 network 159.149.0.0 network 160.78.0.0 network 160.80.0.0 network 160.97.0.0 network 163.162.0.0 network 192.12.192.0 255.255.254.0 network 192.41.218.0 network 192.55.101.0 network 192.58.218.0 network 192.65.131.0 network 192.84.127.0 network 192.84.128.0 255.255.248.0 network 192.84.136.0 255.255.252.0 network 192.84.140.0 network 192.84.142.0 255.255.254.0 network 192.84.144.0 255.255.248.0 network 192.84.152.0 255.255.252.0 network 192.94.70.0 255.255.254.0 network 192.106.234.0 network 192.106.241.0 network 192.106.247.0 network 192.106.248.0 network 192.106.252.0 network 192.107.51.0 network 192.107.52.0 255.255.254.0 network 192.107.61.0 network 192.107.62.0 255.255.254.0 network 192.107.65.0 network 192.107.66.0 network 192.107.71.0 network 192.107.72.0 255.255.254.0 network 192.107.85.0 network 192.107.86.0 network 192.132.34.0 network 192.133.28.0 network 192.135.8.0 255.255.252.0 network 192.135.14.0 255.255.254.0 network 192.135.18.0 network 192.135.30.0 network 192.135.32.0 255.255.254.0 network 192.135.37.0 network 192.135.165.0 network 192.146.242.0 network 192.150.194.0 255.255.254.0 network 192.150.196.0 network 192.160.156.0 network 192.167.2.0 255.255.254.0 network 192.167.8.0 255.255.254.0 network 192.167.11.0 network 192.167.12.0 255.255.252.0 network 192.167.33.0 network 192.167.34.0 network 192.167.36.0 255.255.254.0 network 192.167.38.0 network 192.167.40.0 network 192.167.42.0 network 192.167.47.0 network 192.167.48.0 network 192.167.128.0 255.255.248.0 network 192.167.136.0 network 192.167.147.0 network 192.167.151.0 network 192.167.159.0 network 192.167.204.0 network 192.167.208.0 255.255.248.0 network 192.167.224.0 network 192.167.230.0 network 192.195.110.0 network 193.204.1.0 network 193.204.4.0 255.255.254.0 network 193.204.6.0 network 193.204.8.0 255.255.254.0 network 193.204.10.0 network 193.204.16.0 255.255.254.0 network 193.204.24.0 255.255.252.0 network 193.204.64.0 network 193.204.68.0 255.255.254.0 network 193.204.71.0 network 193.204.108.0 255.255.254.0 network 193.204.116.0 network 193.204.118.0 network 193.204.176.0
In message <9409081002.AA02259@picche.nis.garr.it> bonito@nis.garr.it wrote: Tony, below I can see: AS137 175 115 60 34.3% GARR AS137 179 119 60 33.5% GARR AS137 179 119 60 33.5% GARR This means GARR is now required to do something about that, right? Is there a place where the actual network numbers considered to be CIDRable by our AS are detailed? ==>Is there a place were one can fetch that marvellous tool able to do automatic agregation in a relevant fashion ? Yves ---------------------------------------------------------------- Yves Devillers e-mail: Yves.Devillers@inria.fr Institut National de Recherche en Informatique et Automatique Phone: +33 1 39 63 55 96 INRIA, Centre de Rocquencourt Fax: +33 1 39 63 53 30 BP 105, 78153 Le Chesnay CEDEX Twx: 633 097 F France.
I use a tool written by Bjorn Carlson to do this. Check out ftp://ftp.ripe.net/cidr/tools/fixnets.c --Tony Yves Devillers <Yves.Devillers@inria.fr> writes: * * In message <9409081002.AA02259@picche.nis.garr.it> bonito@nis.garr.it wrote * : * * Tony, * * below I can see: * AS137 175 115 60 34.3% GARR * AS137 179 119 60 33.5% GARR * AS137 179 119 60 33.5% GARR * * This means GARR is now required to do something about that, right? * Is there a place where the actual network numbers considered to be CIDRa * ble * by our AS are detailed? * * ==>Is there a place were one can fetch that marvellous tool able to do * automatic agregation in a relevant fashion ? * * Yves * * ---------------------------------------------------------------- * Yves Devillers * e-mail: Yves.Devillers@inria.fr Institut National de Recherche * en Informatique et Automatique * Phone: +33 1 39 63 55 96 INRIA, Centre de Rocquencourt * Fax: +33 1 39 63 53 30 BP 105, 78153 Le Chesnay CEDEX * Twx: 633 097 F France. *
Yves Devillers <Yves.Devillers@inria.fr> writes: * * ==>Is there a place were one can fetch that marvellous tool able to do * automatic agregation in a relevant fashion ?
Tony Bates <Tony.Bates@ripe.net> writes:
I use a tool written by Bjorn Carlson to do this. Check out
ftp://ftp.ripe.net/cidr/tools/fixnets.c
I think that this tool will not create aggregates where there exists "holes" in the network numbers which are being routed (at least that was what I heard last time; I have not actually used or read the program). Such holes may be there because a site is temporarily unavailable, because the network number hasn't been assigned yet etc. I have yet to see a tool which beats human knowledge when it comes to determining which ranges can be announced as aggregates, especially when the knowledge of the assignment status for blocks is known. The output of such a tool should be taken mainly as "advice". I will claim that there is nothing dangerous and certainly very small inconvenience or cost involved in announcing such "holes" as part of a CIDR announcement. Remember that we do it all the time when it comes to non-assigned subnets of class B networks. Depending on your routing policy, there may be small complications when a customer moves to another service provider, but we all know that, right? Add to that that you'll be able to assign new networks to your cursomers and route them without having to modify your external announcements, and you have a nice savings in the form of less work to do. - Havard
Havard Eidnes <Havard.Eidnes@runit.sintef.no> writes: * * I think that this tool will not create aggregates where there exists * "holes" in the network numbers which are being routed (at least that was Correct. * what I heard last time; I have not actually used or read the program). * Such holes may be there because a site is temporarily unavailable, * because the network number hasn't been assigned yet etc. * * I have yet to see a tool which beats human knowledge when it comes to * determining which ranges can be announced as aggregates, especially when * the knowledge of the assignment status for blocks is known. The output * of such a tool should be taken mainly as "advice". * Definately, this is very much an indicator rather than gospel. * I will claim that there is nothing dangerous and certainly very small * inconvenience or cost involved in announcing such "holes" as part of a * CIDR announcement. Remember that we do it all the time when it comes to * non-assigned subnets of class B networks. Depending on your routing * policy, there may be small complications when a customer moves to * another service provider, but we all know that, right? Add to that that * you'll be able to assign new networks to your cursomers and route them * without having to modify your external announcements, and you have a * nice savings in the form of less work to do. * Sure but who is advocating not announcing holes. The problem is, is it possible to ever write a tool to know when an aggregate with holes can be formed or not ? * - Havard --T
* I have yet to see a tool which beats human knowledge when it comes to * determining which ranges can be announced as aggregates...
Definately, this is very much an indicator rather than gospel.
Right.
Sure but who is advocating not announcing holes. The problem is, is it possible to ever write a tool to know when an aggregate with holes can be formed or not?
Well, maybe my perception is wrong, and that this is not a problem. I know some people expressed reluctance in doing this earlier. About the tool issue; well, I haven't thought too much about this, but maybe if more than 50% of the address space in a given block (not necessarily on a byte boundary) is routed by the local AS, nobody else would think of announcing the aggregate for the whole corresponding block of address space? As long as all the routed specific routes (possibly from other ASes) are present on the border router of the local AS, it should be safe to announce the aggregate and short-circuit the aggregate (e.g. via a static route) to the null device? Longest-prefix matching takes care of the rest. This is probably as aggressive aggregation as can be done. But again, knowledge of the assignment status may modify this again. I think the Merit tool "aggis" checks for non-routed nearby network numbers to enlarge the suggested aggregation (or was there merely talk of that?). - Havard
participants (4)
-
bonito＠nis.garr.it -
Havard Eidnes -
Tony Bates -
Yves Devillers