[27006] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Feb 4 15:08:28 2000
Message-Id: <200002042000.MAA14943@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 04 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 4 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A summary of the last weeks changes in terms of withdrawn and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 04Feb00
0) General Status
Table History
-------------
Date Prefixes
280100 70416
290100 70627
300100 70736
310100 70866
010200 71239
020200 71006
030200 71078
040200 71335
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 6584
Number of ASes announcing only one prefix: 3579 (1939 cidr, 1640 classful)
Largest number of cidr routes: 714 announced by AS701
Largest number of classful routes: 982 announced by AS701
1) Gains by aggregating at the origin AS level
--- 04Feb00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 439 153 286 65.1% BCnet Backbone
AS7046 426 280 146 34.3% UUNET-CUSTOMER
AS9269 141 25 116 82.3% Hong Kong CTI
AS1221 633 519 114 18.0% TELSTRA-AS
AS2609 123 18 105 85.4% EUnet-TN
AS7657 286 188 98 34.3% The Internet Group Limited
AS4293 265 169 96 36.2% Internal ASN for C&W
AS2715 155 61 94 60.6% REDERIO-AS
AS7545 154 61 93 60.4% TPG Internet Pty Ltd
AS9706 116 29 87 75.0% Pusan Metropolitan City Office of
AS6429 204 119 85 41.7% RDC-INTERNET
AS174 555 472 83 15.0% Performance Systems International
AS7496 121 39 82 67.8% Power Up
AS705 296 216 80 27.0% ALTERNET-AS
AS577 255 178 77 30.2% Bell Backbone
AS3749 137 61 76 55.5% TECNET
AS9304 99 24 75 75.8% Hutchcity
AS816 373 298 75 20.1% UUNET Canada (ASN-UUNETCA-AS4)
AS3602 314 246 68 21.7% Sprint Canada Inc.
AS7029 112 47 65 58.0% ALLTELNET
AS4200 169 104 65 38.5% AGIS (Apex Global Information Ser
AS4740 333 275 58 17.4% Ozemail Pty Ltd (ASN-OZEMAIL)
AS7260 103 46 57 55.3% NORLIGHT
AS1727 124 70 54 43.5% MRMS-WEST
AS209 384 333 51 13.3% Qwest Communications
AS4151 97 50 47 48.5% USDA Internet Access Network
AS9557 67 21 46 68.7% Pakistan Telecommunication Compan
AS7568 59 15 44 74.6% C.S. Communications Co., Ltd.
AS4000 88 45 43 48.9% Global IP
AS684 87 45 42 48.3% Manitoba Regional Network Backbon
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
