[26731] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Jan 14 15:05:34 2000
Message-Id: <200001142000.MAA23301@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 14 Jan 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 Jan 14 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A summary of the last weeks changes in terms of withdrawn and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 14Jan00
0) General Status
Table History
-------------
Date Prefixes
070100 69327
080100 69344
090100 69247
100100 69357
110100 69510
120100 69669
130100 69616
140100 69862
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: 4739
Number of ASes announcing only one prefix: 2019 (480 cidr, 1539 classful)
Largest number of cidr routes: 324 announced by AS6172
Largest number of classful routes: 953 announced by AS701
1) Gains by aggregating at the origin AS level
--- 14Jan00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS9269 134 21 113 84.3% Hong Kong CTI
AS2609 124 18 106 85.5% EUnet-TN
AS7545 153 60 93 60.8% TPG Internet Pty Ltd
AS1653 129 38 91 70.5% SUNET Swedish University Network
AS6429 194 117 77 39.7% RDC-INTERNET
AS7496 111 36 75 67.6% Power Up
AS3749 135 61 74 54.8% TECNET
AS4200 171 105 66 38.6% AGIS (Apex Global Information Ser
AS9304 82 21 61 74.4% Hutchcity
AS4151 107 56 51 47.7% USDA Internet Access Network
AS684 92 46 46 50.0% Manitoba Regional Network Backbon
AS4755 113 73 40 35.4% Videsh Sanchar Nigam Ltd. India
AS7568 54 16 38 70.4% C.S. Communications Co., Ltd.
AS6528 46 8 38 82.6% WORLD-LYNX
AS7029 78 41 37 47.4% ALLTELNET
AS7390 50 14 36 72.0% NLSLAN
AS6172 149 113 36 24.2% HOME-NET-1
AS1727 113 77 36 31.9% MRMS-WEST
AS3549 147 112 35 23.8% Frontier GlobalCenter
AS11127 117 82 35 29.9% UNKNOWN
AS8013 124 91 33 26.6% PSINET-CA
AS3737 96 63 33 34.4% PenTeleData Inc. (ASN-PTD)
AS8390 42 10 32 76.2% Global One Communications and Inf
AS549 192 160 32 16.7% ONet Backbone
AS7745 40 9 31 77.5% BIGSKY-AS
AS6629 62 31 31 50.0% NOAA-AS
AS6607 33 2 31 93.9% HOMENET
AS6458 32 1 31 96.9% EMPRESSA GUATEMALTECA DE TELEC
AS4307 32 1 31 96.9% SVINET-1
AS12235 32 1 31 96.9% UNKNOWN
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
