|
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 May 14 12:00:01 PDT 1999
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A summary of the last weeks changes in terms of withdrawn and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 14May99
0) General Status
Table History
-------------
Date Prefixes
070599 58948
080599 58752
090599 58864
100599 58995
110599 58977
120599 59116
130599 58987
140599 59083
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 221.43.160.0/19 from AS12323
AS Summary
----------
Number of ASes in routing system: 4952
Number of ASes announcing only one prefix: 2526 (1378 cidr, 1148 classful)
Largest number of cidr routes: 397 announced by AS701
Largest number of classful routes: 805 announced by AS701
1) Gains by aggregating at the origin AS level
--- 14May99 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 355 144 211 59.4% BCnet Backbone
AS4293 282 176 106 37.6% IMCI
AS174 565 474 91 16.1% Performance Systems International
AS2493 210 125 85 40.5% iSTAR Internet, Inc.
AS4755 174 90 84 48.3% Videsh Sanchar Nigam Ltd. India
AS577 254 175 79 31.1% Bell Canada Backbone
AS4200 175 99 76 43.4% AGIS (Apex Global Information Ser
AS3749 137 61 76 55.5% TECNET
AS1267 94 24 70 74.5% IUNET-AS
AS7496 99 30 69 69.7% Power Up
AS7545 111 47 64 57.7% TPG Internet Pty Ltd
AS1785 384 321 63 16.4% NYSERNet Backbone
AS9269 69 8 61 88.4% Hong Kong CTI
AS1221 457 397 60 13.1% TELSTRA-AS
AS7122 140 81 59 42.1% MTS ADVANCED Network Policy
AS4740 333 276 57 17.1% Ozemail Pty Ltd (ASN-OZEMAIL)
AS10928 110 53 57 51.8% UNKNOWN
AS72 94 39 55 58.5% Schlumberger Information Network
AS7657 164 110 54 32.9% The Internet Group Limited
AS719 473 419 54 11.4% LANLINK autonomous system
AS1239 519 466 53 10.2% SprintLink Backbone
AS7046 252 206 46 18.3% UUNET-CUSTOMER
AS3737 111 73 38 34.2% PenTeleData Inc. (ASN-PTD)
AS803 72 36 36 50.0% SaskNet Backbone
AS1 499 465 34 6.8% BBNPLANET
AS6172 155 124 31 20.0% HOME-NET-1
AS4307 32 1 31 96.9% SVINET-1
AS3549 133 102 31 23.3% Frontier GlobalCenter
AS2907 208 177 31 14.9% SINET
AS11515 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
|