[30359] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Jul 28 15:06:42 2000
Message-Id: <200007281900.MAA11622@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 28 Jul 2000 12:00:02 -0700
From: Tony Bates <tbates@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
This is an auto-generated mail on Fri Jul 28 12:00:00 PDT 2000
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A summary of the last weeks changes in terms of withdrawn and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 28Jul00
0) General Status
Table History
-------------
Date Prefixes
210700 82529
220700 82534
230700 82499
240700 82582
250700 82822
260700 82702
270700 82843
280700 82898
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.0.0.0/14 from AS6172
AS Summary
----------
Number of ASes in routing system: 8021
Number of ASes announcing only one prefix: 4513 (2506 cidr, 2007 classful)
Largest number of cidr routes: 943 announced by AS701
Largest number of classful routes: 1078 announced by AS701
1) Gains by aggregating at the origin AS level
--- 28Jul00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 435 152 283 65.1% BCnet Backbone
AS7046 643 397 246 38.3% COQUI-NET PRTC Internet
AS1221 583 418 165 28.3% TELSTRA-AS
AS9706 155 25 130 83.9% Pusan Metropolitan City Office of
AS2609 128 8 120 93.8% EUnet-TN
AS9304 125 16 109 87.2% Hutchcity
AS7657 300 192 108 36.0% The Internet Group Limited
AS7545 157 58 99 63.1% TPG Internet Pty Ltd
AS9269 155 62 93 60.0% Hong Kong CTI
AS6429 208 115 93 44.7% RDC-INTERNET
AS7496 126 38 88 69.8% Power Up
AS4293 335 248 87 26.0% Internal ASN for C&W
AS577 256 171 85 33.2% Bell Backbone
AS174 535 456 79 14.8% Performance Systems International
AS705 326 249 77 23.6% ALTERNET-AS
AS1727 172 99 73 42.4% MRMS-WEST
AS724 224 153 71 31.7% DLA-ASNBLOCK-AS
AS3908 244 178 66 27.0% Supernet, Inc.
AS4755 166 101 65 39.2% Videsh Sanchar Nigam Ltd. India
AS701 1078 1014 64 5.9% Alternet
AS6595 116 52 64 55.2% DODDSEUR
AS5106 98 36 62 63.3% AADS-COLUMBUS
AS3749 117 58 59 50.4% TECNET
AS7018 546 488 58 10.6% AT&T WorldNet Service Backbone
AS7568 80 23 57 71.2% C.S. Communications Co., Ltd.
AS3602 299 242 57 19.1% Sprint Canada Inc.
AS4740 325 272 53 16.3% Ozemail Pty Ltd (ASN-OZEMAIL)
AS11252 90 37 53 58.9% Idaho State University
AS7993 78 28 50 64.1% Global One Communications
AS209 267 220 47 17.6% Qwest Communications
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
