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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 Apr 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A summary of the last weeks changes in terms of withdrawn and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 09Apr99
0) General Status
Table History
-------------
Date Prefixes
020499 57822
030499 57882
040499 57870
050499 57905
060499 57698
070499 57862
080499 57891
090499 58050
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 71.0.2.0/24 from AS1239
AS Summary
----------
Number of ASes in routing system: 4780
Number of ASes announcing only one prefix: 2392 (1282 cidr, 1110 classful)
Largest number of cidr routes: 380 announced by AS701
Largest number of classful routes: 813 announced by AS701
1) Gains by aggregating at the origin AS level
--- 09Apr99 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 355 144 211 59.4% BCnet Backbone
AS174 627 517 110 17.5% Performance Systems International
AS4293 291 184 107 36.8% IMCI
AS226 205 100 105 51.2% USC/Information Sciences Institut
AS4755 166 77 89 53.6% Videsh Sanchar Nigam Ltd. India
AS2493 218 135 83 38.1% iSTAR Internet, Inc.
AS3749 138 61 77 55.8% TECNET
AS4200 166 95 71 42.8% AGIS (Apex Global Information Ser
AS1267 94 24 70 74.5% IUNET-AS
AS7496 97 31 66 68.0% Power Up
AS1221 448 383 65 14.5% AARNET-AS
AS7545 110 46 64 58.2% TPG Internet Pty Ltd
AS7046 268 205 63 23.5% UUNET-CUSTOMER
AS7657 174 115 59 33.9% The Internet Group Limited
AS4740 338 280 58 17.2% Ozemail Pty Ltd (ASN-OZEMAIL)
AS1239 524 466 58 11.1% SprintLink Backbone
AS10928 109 53 56 51.4% UNKNOWN
AS577 230 176 54 23.5% Bell Canada Backbone
AS72 92 40 52 56.5% Schlumberger Information Network
AS3493 233 182 51 21.9% INTERLINK
AS719 459 411 48 10.5% LANLINK autonomous system
AS5674 80 36 44 55.0% PBI-NET-BLK
AS3737 104 68 36 34.6% PenTeleData Inc. (ASN-PTD)
AS1 509 473 36 7.1% BBNPLANET
AS7745 39 4 35 89.7% BIGSKY-AS
AS803 70 36 34 48.6% SaskNet Backbone
AS7122 111 78 33 29.7% MTS ADVANCED Network Policy
AS262 36 3 33 91.7% JVNC-II-AS
AS1785 247 215 32 13.0% NYSERNet Backbone
AS6172 153 122 31 20.3% HOME-NET-1
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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