[27581] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Feb 25 15:08:44 2000
Message-Id: <200002252000.MAA17286@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 25 Feb 2000 12:00:02 -0800
From: Tony Bates <tbates@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
This is an auto-generated mail on Fri Feb 25 12:00:00 PST 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A summary of the last weeks changes in terms of withdrawn and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 25Feb00
0) General Status
Table History
-------------
Date Prefixes
180200 72321
190200 72203
200200 72346
210200 72296
220200 72419
230200 72364
240200 72455
250200 72608
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.45.0.0/19 from AS10585
*** Bogus 99.0.0.0 from AS9841
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 6762
Number of ASes announcing only one prefix: 3701 (2011 cidr, 1690 classful)
Largest number of cidr routes: 774 announced by AS701
Largest number of classful routes: 1009 announced by AS701
1) Gains by aggregating at the origin AS level
--- 25Feb00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 437 152 285 65.2% BCnet Backbone
AS7046 438 292 146 33.3% UUNET-CUSTOMER
AS1221 657 523 134 20.4% TELSTRA-AS
AS9269 154 26 128 83.1% Hong Kong CTI
AS9706 151 26 125 82.8% Pusan Metropolitan City Office of
AS2609 122 23 99 81.1% EUnet-TN
AS4293 272 177 95 34.9% Internal ASN for C&W
AS2715 157 62 95 60.5% REDERIO-AS
AS7657 274 181 93 33.9% The Internet Group Limited
AS7545 154 61 93 60.4% TPG Internet Pty Ltd
AS7496 124 38 86 69.4% Power Up
AS6429 203 118 85 41.9% RDC-INTERNET
AS174 553 471 82 14.8% Performance Systems International
AS705 291 212 79 27.1% ALTERNET-AS
AS9304 101 23 78 77.2% Hutchcity
AS3749 137 61 76 55.5% TECNET
AS577 245 172 73 29.8% Bell Backbone
AS3602 326 253 73 22.4% Sprint Canada Inc.
AS816 369 306 63 17.1% UUNET Canada (ASN-UUNETCA-AS4)
AS4200 167 104 63 37.7% AGIS (Apex Global Information Ser
AS7029 111 50 61 55.0% ALLTELNET
AS4740 337 279 58 17.2% Ozemail Pty Ltd (ASN-OZEMAIL)
AS1727 134 77 57 42.5% MRMS-WEST
AS7260 103 48 55 53.4% NORLIGHT
AS209 385 335 50 13.0% Qwest Communications
AS9557 73 26 47 64.4% Pakistan Telecommunication Compan
AS701 1009 962 47 4.7% Alternet
AS2652 126 81 45 35.7% Government of Canada Telecommunic
AS684 86 44 42 48.8% Manitoba Regional Network Backbon
AS6528 48 6 42 87.5% WORLD-LYNX
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
