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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 Oct 29 12:00:00 PDT 1999
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A summary of the last weeks changes in terms of withdrawn and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 29Oct99
0) General Status
Table History
-------------
Date Prefixes
221099 65598
231099 65493
241099 65535
251099 65586
261099 66128
271099 65317
281099 65520
291099 65524
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 100.0.0.0 from AS2561
*** Bogus 110.30.236.0/24 from AS577
*** Bogus 126.0.0.0 from AS2561
AS Summary
----------
Number of ASes in routing system: 5916
Number of ASes announcing only one prefix: 3138 (1731 cidr, 1407 classful)
Largest number of cidr routes: 601 announced by AS701
Largest number of classful routes: 1017 announced by AS701
1) Gains by aggregating at the origin AS level
--- 29Oct99 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 383 144 239 62.4% BCnet Backbone
AS7046 426 255 171 40.1% UUNET-CUSTOMER
AS2609 128 8 120 93.8% EUnet-TN
AS6944 133 18 115 86.5% RapidSite, Inc.
AS1221 625 515 110 17.6% TELSTRA-AS
AS9269 131 30 101 77.1% Hong Kong CTI
AS7657 250 162 88 35.2% The Internet Group Limited
AS174 563 476 87 15.5% Performance Systems International
AS577 265 180 85 32.1% Bell Canada Backbone
AS4293 227 142 85 37.4% Internal ASN for C&W
AS7545 140 64 76 54.3% TPG Internet Pty Ltd
AS3749 140 64 76 54.3% TECNET
AS7496 111 37 74 66.7% Power Up
AS4200 183 110 73 39.9% AGIS (Apex Global Information Ser
AS701 1017 954 63 6.2% Alternet
AS209 321 268 53 16.5% Qwest Communications
AS4740 339 287 52 15.3% Ozemail Pty Ltd (ASN-OZEMAIL)
AS684 92 46 46 50.0% Manitoba Regional Network Backbon
AS816 226 181 45 19.9% UUNET Canada (ASN-UUNETCA-AS4)
AS4755 109 68 41 37.6% Videsh Sanchar Nigam Ltd. India
AS2493 132 92 40 30.3% iSTAR Internet, Inc.
AS9304 54 15 39 72.2% Hutchcity
AS6528 45 7 38 84.4% WORLD-LYNX
AS549 213 175 38 17.8% ONet Backbone
AS1 501 466 35 7.0% GTE Internetworking
AS7568 47 13 34 72.3% C.S. Communications Co., Ltd.
AS6172 143 110 33 23.1% HOME-NET-1
AS3737 99 66 33 33.3% PenTeleData Inc. (ASN-PTD)
AS1785 237 205 32 13.5% NYSERNet Backbone
AS9453 33 2 31 93.9% Soongsil University
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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