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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 Sep 29 12:00:00 PDT 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A summary of the last weeks changes in terms of withdrawn and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 29Sep00
0) General Status
Table History
-------------
Date Prefixes
220900 87996
230900 87972
240900 88049
250900 88476
260900 88933
270900 88898
280900 88696
290900 88909
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
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Number of ASes in routing system: 8613
Number of ASes announcing only one prefix: 4912 (2732 cidr, 2180 classful)
Largest number of cidr routes: 895 announced by AS701
Largest number of classful routes: 1087 announced by AS701
1) Gains by aggregating at the origin AS level
--- 29Sep00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 431 153 278 64.5% BCnet Backbone
AS1785 623 377 246 39.5% AppliedTheory Communications
AS1221 614 453 161 26.2% TELSTRA-AS
AS816 581 437 144 24.8% UUNET Canada (ASN-UUNETCA-AS4)
AS5696 421 285 136 32.3% WinStar AS
AS9269 177 47 130 73.4% Hong Kong CTI
AS2609 128 8 120 93.8% EUnet-TN
AS7657 337 220 117 34.7% The Internet Group Limited
AS7046 390 277 113 29.0% COQUI-NET PRTC Internet
AS9304 124 17 107 86.3% Hutchcity
AS7545 158 55 103 65.2% TPG Internet Pty Ltd
AS4755 214 116 98 45.8% Videsh Sanchar Nigam Ltd. India
AS705 354 258 96 27.1% ALTERNET-AS
AS6429 210 114 96 45.7% FirstCom Internet
AS9706 103 9 94 91.3% Pusan Metropolitan City Office of
AS7496 125 34 91 72.8% Power Up
AS8013 488 402 86 17.6% PSINET-CA
AS174 538 452 86 16.0% Performance Systems International
AS4293 338 255 83 24.6% Internal ASN for C&W
AS6595 138 57 81 58.7% DODDSEUR
AS13999 90 9 81 90.0% UNKNOWN
AS3908 255 176 79 31.0% Supernet, Inc.
AS1727 166 92 74 44.6% MRMS-WEST
AS577 248 175 73 29.4% Bell Backbone
AS701 1087 1018 69 6.3% Alternet
AS7018 579 512 67 11.6% AT&T WorldNet Service Backbone
AS724 227 161 66 29.1% DLA-ASNBLOCK-AS
AS8895 102 37 65 63.7% Saudi Arabia AS
AS5106 99 36 63 63.6% AADS-COLUMBUS
AS3749 119 57 62 52.1% TECNET
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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