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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 Oct 30 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A summary of the last weeks changes in terms of withdrawn and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.
------------------------------------------------------------------------------
CIDR REPORT for 30Oct98
0) General Status
Table History
-------------
Date Prefixes
241098 53540
251098 53536
251098 53530
261098 53995
271098 53565
281098 53597
291098 53550
301098 53608
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: 4166
Number of ASes announcing only one prefix: 2015 (1071 cidr, 944 classful)
Largest number of cidr routes: 615 announced by AS3561
Largest number of classful routes: 943 announced by AS701
1) Gains by aggregating at the origin AS level
--- 30Oct98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 351 149 202 57.5% BCNET-AS
AS1785 605 410 195 32.2% NYSERNet Backbone
AS4293 414 239 175 42.3% IMCI
AS3749 232 72 160 69.0% TECNET
AS2493 349 197 152 43.6% iSTAR Internet, Inc.
AS174 690 560 130 18.8% Performance Systems International
AS701 943 814 129 13.7% Alternet
AS4200 190 98 92 48.4% AGIS (Apex Global Information Ser
AS5668 126 42 84 66.7% Century Telephone Inc.
AS7046 272 195 77 28.3% UUNET-CUSTOMER
AS3221 118 44 74 62.7% EENet Autonomous System
AS4755 127 62 65 51.2% Videsh Sanchar Nigam Ltd. India
AS4740 399 334 65 16.3% Ozemail Pty Ltd (ASN-OZEMAIL)
AS7545 117 63 54 46.2% APNIC-AS-2-BLOCK
AS8517 125 72 53 42.4% ULAKNET-ASN
AS6335 71 19 52 73.2% NTRNET
AS549 197 147 50 25.4% ONET-AS
AS72 89 41 48 53.9% Schlumberger Information Network
AS1239 523 476 47 9.0% SprintLink Backbone
AS1221 362 315 47 13.0% AARNET-AS
AS803 77 33 44 57.1% SASK-NET-AS
AS852 166 125 41 24.7% CANET-ASN
AS7122 123 82 41 33.3% MTS ADVANCED Network Policy
AS4539 68 28 40 58.8% NETROPOLIS
AS3804 189 149 40 21.2% WORLDLINX
AS10928 87 48 39 44.8% UNKNOWN
AS6181 64 30 34 53.1% FUSE-NET
AS7496 64 31 33 51.6% APNIC-AS-2-BLOCK
AS2707 65 32 33 50.8% WEC
AS4307 32 1 31 96.9% SVINET-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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