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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 Jul 9 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A summary of the last weeks changes in terms of withdrawn and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 09Jul99
0) General Status
Table History
-------------
Date Prefixes
020799 60891
030799 60878
040799 60943
050799 60887
060799 60932
070799 61691
080799 61806
090799 61684
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: 5250
Number of ASes announcing only one prefix: 2730 (1503 cidr, 1227 classful)
Largest number of cidr routes: 432 announced by AS701
Largest number of classful routes: 831 announced by AS701
1) Gains by aggregating at the origin AS level
--- 09Jul99 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS816 826 589 237 28.7% UUNET Canada (ASN-UUNETCA-AS4)
AS271 348 145 203 58.3% BCnet Backbone
AS4293 268 159 109 40.7% IMCI
AS2609 122 27 95 77.9% EUnet-TN
AS577 282 188 94 33.3% Bell Canada Backbone
AS174 585 496 89 15.2% Performance Systems International
AS7046 325 242 83 25.5% UUNET-CUSTOMER
AS4200 186 105 81 43.5% AGIS (Apex Global Information Ser
AS7545 141 66 75 53.2% TPG Internet Pty Ltd
AS3749 134 61 73 54.5% TECNET
AS1221 485 413 72 14.8% TELSTRA-AS
AS10928 119 50 69 58.0% UNKNOWN
AS7496 100 34 66 66.0% Power Up
AS7657 206 144 62 30.1% The Internet Group Limited
AS9269 71 12 59 83.1% Hong Kong CTI
AS72 95 39 56 58.9% Schlumberger Information Network
AS4740 313 260 53 16.9% Ozemail Pty Ltd (ASN-OZEMAIL)
AS719 456 405 51 11.2% LANLINK autonomous system
AS6944 58 7 51 87.9% RapidSite, Inc.
AS2493 165 114 51 30.9% iSTAR Internet, Inc.
AS4755 123 74 49 39.8% Videsh Sanchar Nigam Ltd. India
AS803 78 34 44 56.4% SaskNet Backbone
AS549 219 175 44 20.1% ONet Backbone
AS3737 110 69 41 37.3% PenTeleData Inc. (ASN-PTD)
AS1 490 454 36 7.3% BBNPLANET
AS6172 153 120 33 21.6% HOME-NET-1
AS1785 246 213 33 13.4% NYSERNet Backbone
AS6762 33 2 31 93.9% Telecom Italia international high
AS4307 32 1 31 96.9% SVINET-1
AS3549 135 104 31 23.0% Frontier GlobalCenter
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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