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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical The Cidr Report
This is an auto-generated mail on Fri Dec 8 12:00:00 PST 2000
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amont of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to xara.net for giving me access to their routing tables once a
day.
Please send any comments about this report directly to me.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
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CIDR REPORT for 08Dec00
0) General Status
Table History
-------------
Date Prefixes
011200 93154
021200 93136
031200 93184
041200 95348
051200 95118
061200 95808
071200 95387
081200 95404
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 91.16.23.0/24 from AS11770
*** Bogus 219.219.219.0 from AS2563
AS Summary
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Number of ASes in routing system: 9339
Number of ASes announcing only one prefix: 5413 (3047 cidr, 2366 classful)
Largest number of cidr routes: 1001 announced by AS701
Largest number of classful routes: 1708 announced by AS1221
1) Gains by aggregating at the origin AS level
--- 08Dec00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1708 1240 468 27.4% TELSTRA-AS
AS2563 348 114 234 67.2% KoRean Education Network
AS271 289 133 156 54.0% BCnet Backbone
AS701 1534 1390 144 9.4% Alternet
AS9269 167 48 119 71.3% Hong Kong CTI
AS7545 166 50 116 69.9% TPG Internet Pty Ltd
AS2609 115 11 104 90.4% EUnet-TN
AS6595 164 63 101 61.6% DODDSEUR
AS8013 453 353 100 22.1% PSINET-CA
AS7657 285 194 91 31.9% The Internet Group Limited
AS13999 94 6 88 93.6% UNKNOWN
AS705 331 247 84 25.4% ALTERNET-AS
AS4293 344 262 82 23.8% Internal ASN for C&W
AS174 526 445 81 15.4% Performance Systems International
AS4755 194 114 80 41.2% Videsh Sanchar Nigam Ltd. India
AS7496 102 25 77 75.5% Power Up
AS7046 326 250 76 23.3% UUNET-CUSTOMER
AS4151 285 209 76 26.7% USDA Internet Access Network
AS3908 238 166 72 30.3% Supernet, Inc.
AS1942 136 64 72 52.9% FR-CICG-GRENOBLE
AS577 243 172 71 29.2% Bell Backbone
AS724 224 158 66 29.5% DLA-ASNBLOCK-AS
AS7018 594 528 66 11.1% AT&T WorldNet Service Backbone
AS226 169 104 65 38.5% USC/Information Sciences Institut
AS5106 101 37 64 63.4% AADS-COLUMBUS
AS1727 153 91 62 40.5% MRMS-WEST
AS3749 116 56 60 51.7% TECNET
AS3602 306 248 58 19.0% Sprint Canada Inc.
AS2548 369 311 58 15.7% DIGEX-AS
AS16758 63 6 57 90.5% UNKNOWN
For the rest of the previous weeks gain information please see
http://www.employees.org:80/~tbates/cidr-report.html
2) Weekly Delta
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
3) Interesting aggregates
Please see
http://www.employees.org:80/~tbates/cidr-report.html
for this part of the report
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