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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 Dec 27 21:48:19 2002 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 20-12-02 116819 84591 21-12-02 117027 84645 22-12-02 116950 84680 23-12-02 117004 84625 24-12-02 117042 84622 25-12-02 117164 84618 26-12-02 117170 84663 27-12-02 117120 84778 AS Summary 14244 Number of ASes in routing system 5613 Number of ASes announcing only one prefix 1625 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 72982528 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'). --- 27Dec02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 117163 84785 32378 27.6% All ASes AS3908 1173 684 489 41.7% SUPERNETASBLK SuperNet, Inc. AS701 1625 1208 417 25.7% ALTERNET-AS UUNET Technologies, Inc. AS18566 414 5 409 98.8% COVAD Covad Communications AS7018 1425 1030 395 27.7% ATT-INTERNET4 AT&T WorldNet Services AS4323 531 188 343 64.6% TW-COMM Time Warner Communications, Inc. AS7843 629 289 340 54.1% ADELPHIA-AS Adelphia Corp. AS1221 1147 831 316 27.6% ASN-TELSTRA Telstra Pty Ltd AS6197 454 150 304 67.0% BATI-ATL BellSouth Network Solutions, Inc AS6347 360 85 275 76.4% DIAMOND SAVVIS Communications Corporation AS4355 407 135 272 66.8% ERMS-EARTHLNK EARTHLINK, INC AS7046 581 311 270 46.5% UUNET-CUSTOMER UUNET Technologies, Inc. AS22927 289 22 267 92.4% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS1239 947 682 265 28.0% SPRINTLINK Sprint AS705 422 188 234 55.5% ASN-ALTERNET UUNET Technologies, Inc. AS4814 249 15 234 94.0% CHINANET-BEIJING-AP China Telecom (Group) AS1 662 440 222 33.5% GNTY-1 Genuity AS6198 422 200 222 52.6% BATI-MIA BellSouth Network Solutions, Inc AS17676 231 26 205 88.7% GIGAINFRA XTAGE CORPORATION AS22291 226 29 197 87.2% CHARTER-LA Charter Communications AS690 513 319 194 37.8% MERIT-AS-27 Merit Network Inc. AS6140 315 125 190 60.3% IMPSAT-USA ImpSat AS4151 324 135 189 58.3% USDA-1 USDA AS4134 289 108 181 62.6% ERX-CHINALINK Data Communications Bureau AS209 517 337 180 34.8% ASN-QWEST Qwest AS852 619 445 174 28.1% ASN852 Telus Advanced Communications AS2048 255 84 171 67.1% LANET-1 State of Louisiana AS6327 184 33 151 82.1% SHAWFIBER Shaw Fiberlink Limited AS17557 323 179 144 44.6% PKTELECOM-AS-AP Pakistan Telecom AS2386 370 228 142 38.4% INS-AS AT&T Data Communications Services AS3215 313 174 139 44.4% AS3215 France Telecom Transpac Total 16216 8685 7531 46.4% 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]
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