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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 24 12:00:00 PDT 1998
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A summary of the last weeks changes in terms of withdrawn and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.
------------------------------------------------------------------------------
CIDR REPORT for 24Apr98
0) General Status
Table History
-------------
Date Prefixes
170498 51188
180498 51220
190498 51064
200498 51247
210498 51425
220498 51496
230498 51401
240498 51504
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 3488
Number of ASes announcing only one prefix: 1659 (861 cidr, 798 classful)
Largest number of cidr routes: 376 announced by AS3561
Largest number of classful routes: 1115 announced by AS701
1) Gains by aggregating at the origin AS level
--- 24Apr98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 657 413 244 37.1% iSTAR Internet, Inc.
AS4293 441 217 224 50.8% IMCI
AS816 670 461 209 31.2% UUNET Canada (ASN-UUNETCA-AS4)
AS701 1115 939 176 15.8% Alternet
AS3602 469 306 163 34.8% Sprint Canada Inc.
AS3749 219 64 155 70.8% TECNET
AS174 750 601 149 19.9% Performance Systems International
AS8505 156 30 126 80.8% Middle East Technical University
AS7046 253 149 104 41.1% UUNET-CUSTOMER
AS5668 119 45 74 62.2% Century Telephone Inc.
AS2048 162 90 72 44.4% LaNet
AS3221 110 41 69 62.7% EENet Autonomous System
AS4755 97 29 68 70.1% Videsh Sanchar Nigam Ltd. India
AS11003 127 59 68 53.5% UNKNOWN
AS10928 104 44 60 57.7% UNKNOWN
AS271 111 52 59 53.2% BCnet Backbone
AS3804 200 142 58 29.0% Bell Solutions
AS4313 67 14 53 79.1% DELTANET
AS549 209 159 50 23.9% ONet Backbone
AS1239 541 492 49 9.1% SprintLink Backbone
AS72 84 36 48 57.1% Schlumberger Information Network
AS1221 275 227 48 17.5% AARNET-AS
AS6392 80 33 47 58.8% MidWest Communications, Inc.
AS4763 123 76 47 38.2% Telstra New Zealand
AS684 94 52 42 44.7% Manitoba Regional Network Backbon
AS852 157 117 40 25.5% AGT Advance Communication
AS4740 353 314 39 11.0% ASN-OZEMAIL (Ozemail Pty Ltd)
AS3493 164 126 38 23.2% INTERLINK
AS4200 129 92 37 28.7% AGIS (Apex Global Information Ser
AS803 72 36 36 50.0% SaskNet Backbone
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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