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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 Feb 13 12:00:00 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A summary of the last weeks changes in terms of withdrawn and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.
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CIDR REPORT for 13Feb98
0) General Status
Table History
-------------
Date Prefixes
290198 50396
300198 50242
310198 49848
010298 49715
020298 49739
030298 49600
040298 49877
050298 49484
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: 2407
Number of ASes announcing only one prefix: 718 (0 cidr, 718 classful)
Largest number of cidr routes: 0 announced by
Largest number of classful routes: 1044 announced by AS701
1) Gains by aggregating at the origin AS level
--- 13Feb98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 691 368 323 46.7% iSTAR Internet, Inc.
AS6235 495 252 243 49.1% Intermedia Communications, Inc.
AS4293 430 210 220 51.2% IMCI
AS174 874 673 201 23.0% Performance Systems International
AS816 635 444 191 30.1% UUNET Canada (ASN-UUNETCA-AS4)
AS3602 455 304 151 33.2% Sprint Canada Inc.
AS3749 202 61 141 69.8% TECNET
AS701 1044 931 113 10.8% Alternet
AS3336 109 19 90 82.6% Internet Services, Kolumbus proje
AS3751 125 48 77 61.6% SNET-AS
AS5668 107 40 67 62.6% Century Telephone Inc.
AS3804 204 142 62 30.4% WORLDLINX
AS2048 154 92 62 40.3% LaNet
AS1239 596 534 62 10.4% SprintLink Backbone
AS3221 92 33 59 64.1% EENet Autonomous System
AS1 840 782 58 6.9% BBNPLANET
AS271 110 55 55 50.0% BCNET-AS
AS719 519 468 51 9.8% LANLINK autonomous system
AS549 214 163 51 23.8% ONET-AS
AS3464 115 64 51 44.3% Alabama Research and Education Ne
AS1221 263 214 49 18.6% AARNET-AS
AS72 84 36 48 57.1% Schlumberger Information Network
AS4763 128 80 48 37.5% Telstra New Zealand
AS7545 114 69 45 39.5% TPG Internet Pty Ltd
AS684 86 42 44 51.2% MBNET-AS
AS4740 354 312 42 11.9% ASN-OZEMAIL (Ozemail Pty Ltd)
AS2711 97 55 42 43.3% SUNBELT-AS
AS7046 130 89 41 31.5% UUNET-CUSTOMER
AS3561 897 857 40 4.5% MCI
AS852 156 117 39 25.0% CANET-ASN
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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