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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 Mar 6 12:00:01 PST 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A summary of the last weeks changes in terms of withdrawn and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 06Mar98
0) General Status
Table History
-------------
Date Prefixes
270298 49830
280298 49218
010398 49211
020398 49301
030398 49206
040398 49095
050398 49430
060398 49432
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: 3301
Number of ASes announcing only one prefix: 1558 (805 cidr, 753 classful)
Largest number of cidr routes: 430 announced by AS3561
Largest number of classful routes: 1012 announced by AS701
1) Gains by aggregating at the origin AS level
--- 06Mar98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 583 360 223 38.3% iSTAR Internet, Inc.
AS4293 431 222 209 48.5% IMCI
AS816 615 440 175 28.5% UUNET Canada (ASN-UUNETCA-AS4)
AS174 800 639 161 20.1% Performance Systems International
AS3602 460 307 153 33.3% Sprint Canada Inc.
AS3749 216 66 150 69.4% TECNET
AS701 1012 863 149 14.7% Alternet
AS8505 150 36 114 76.0% Middle East Technical University
AS3751 125 48 77 61.6% SNET-AS
AS5668 110 38 72 65.5% Century Telephone Inc.
AS4151 122 56 66 54.1% USDA Internet Access Network
AS3804 206 143 63 30.6% Bell Solutions
AS3221 94 34 60 63.8% EENet Autonomous System
AS1239 579 520 59 10.2% SprintLink Backbone
AS271 112 56 56 50.0% BCnet Backbone
AS10928 94 40 54 57.4% UNKNOWN
AS3464 118 65 53 44.9% Alabama Research and Education Ne
AS549 211 162 49 23.2% ONet Backbone
AS4755 82 33 49 59.8% Videsh Sanchar Nigam Ltd. India
AS72 84 36 48 57.1% Schlumberger Information Network
AS1221 266 218 48 18.0% AARNET-AS
AS4763 124 78 46 37.1% Telstra New Zealand
AS7046 138 94 44 31.9% UUNET-CUSTOMER
AS6181 67 23 44 65.7% FUSE-NET
AS6335 64 22 42 65.6% NTRNET
AS3561 888 846 42 4.7% MCI
AS2711 97 55 42 43.3% SUNBELT-AS
AS10722 73 31 42 57.5% Aluminum Co. of America
AS4740 348 307 41 11.8% ASN-OZEMAIL (Ozemail Pty Ltd)
AS852 154 115 39 25.3% AGT Advance Communication
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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