|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical The Cidr Report
This report has been generated at Fri Mar 28 21:50:09 2003 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 21-03-03 120815 86434 22-03-03 120741 86424 23-03-03 120589 86556 24-03-03 120679 86593 25-03-03 120712 86324 26-03-03 120739 86276 27-03-03 120877 86281 28-03-03 120855 86349 AS Summary 14836 Number of ASes in routing system 5851 Number of ASes announcing only one prefix 1555 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73048064 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 28Mar03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 121000 86362 34638 28.6% All ASes AS3908 1048 537 511 48.8% SUPERNETASBLK SuperNet, Inc. AS18566 509 14 495 97.2% COVAD Covad Communications AS4151 585 107 478 81.7% USDA-1 USDA AS701 1555 1115 440 28.3% ALTERNET-AS UUNET Technologies, Inc. AS7843 599 198 401 66.9% ADELPHIA-AS Adelphia Corp. AS7018 1346 952 394 29.3% ATT-INTERNET4 AT&T WorldNet Services AS4323 561 176 385 68.6% TW-COMM Time Warner Communications, Inc. AS1221 1109 813 296 26.7% ASN-TELSTRA Telstra Pty Ltd AS1239 968 688 280 28.9% SPRINTLINK Sprint AS6197 476 202 274 57.6% BATI-ATL BellSouth Network Solutions, Inc AS22927 286 14 272 95.1% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6198 450 182 268 59.6% BATI-MIA BellSouth Network Solutions, Inc AS705 534 268 266 49.8% ASN-ALTERNET UUNET Technologies, Inc. AS4355 382 116 266 69.6% ERMS-EARTHLNK EARTHLINK, INC AS1 685 429 256 37.4% GNTY-1 Genuity AS4814 267 15 252 94.4% CHINANET-BEIJING-AP China Telecom (Group) AS2386 499 249 250 50.1% INS-AS AT&T Data Communications Services AS17676 235 28 207 88.1% GIGAINFRA XTAGE CORPORATION AS22291 239 39 200 83.7% CHARTER-LA Charter Communications AS27364 265 65 200 75.5% ACS-INTERNET Armstrong Cable Services AS7132 674 475 199 29.5% SBIS-AS SBC Internet Services - Southwest AS4134 316 123 193 61.1% CHINANET-BACKBONE No.31,Jin-rong Street AS22773 197 8 189 95.9% CCINET-2 Cox Communications Inc. Atlanta AS209 526 339 187 35.6% ASN-QWEST Qwest AS690 503 316 187 37.2% MERIT-AS-27 Merit Network Inc. AS6347 373 193 180 48.3% DIAMOND SAVVIS Communications Corporation AS3561 520 344 176 33.8% CWUSA Cable & Wireless USA AS2048 259 87 172 66.4% LANET-1 State of Louisiana AS17557 375 214 161 42.9% PKTELECOM-AS-AP Pakistan Telecom AS6140 290 140 150 51.7% IMPSAT-USA ImpSat Total 16631 8446 8185 49.2% Top 30 total Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: [email protected] [email protected] [email protected] [email protected] [email protected] |