The Cidr Report

Fri Aug 14 19:00:02 UTC 1998

This is an auto-generated mail on Fri Aug 14 12:00:01 PDT 1998
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      A summary of the last weeks changes in terms of withdrawn and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 14Aug98

0) General Status

Table History
-------------

Date	Prefixes
060898	52871
070898	52903
080898	52795
090898	52792
100898	52923
110898	52706
120898	52799
130898	52878

Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.

Possible Bogus Routes
---------------------

AS Summary
----------

1) Gains by aggregating at the origin AS level

 --- 13Aug98 ---
ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description

AS3602       554      322      232   41.9%   Sprint Canada Inc.
AS701       1133      933      200   17.7%   Alternet
AS271        336      145      191   56.8%   BCnet Backbone
AS4293       442      255      187   42.3%   IMCI
AS2493       391      231      160   40.9%   iSTAR Internet, Inc.
AS3749       207       69      138   66.7%   TECNET
AS174        719      584      135   18.8%   Performance Systems International
AS4200       192      100       92   47.9%   AGIS (Apex Global Information Ser
AS2685       238      153       85   35.7%   IBM Global Network - US
AS5668       130       46       84   64.6%   Century Telephone Inc.
AS4755       121       43       78   64.5%   Videsh Sanchar Nigam Ltd. India
AS4740       418      343       75   17.9%   Ozemail Pty Ltd (ASN-OZEMAIL)
AS3221       112       42       70   62.5%   EENet Autonomous System
AS7046       229      163       66   28.8%   UUNET-CUSTOMER
AS3804       214      156       58   27.1%   Bell Solutions
AS3403       181      127       54   29.8%   TIAC
AS8517       123       71       52   42.3%   ULAKNET-ASN
AS549        204      153       51   25.0%   ONet Backbone
AS6335        69       20       49   71.0%   NTRNET
AS72          87       39       48   55.2%   Schlumberger Information Network
AS719        460      412       48   10.4%   LANLINK autonomous system
AS1239       535      487       48    9.0%   SprintLink Backbone
AS10928       95       49       46   48.4%   UNKNOWN
AS1785       300      256       44   14.7%   NYSERNet Backbone
AS4539        71       28       43   60.6%   NETROPOLIS
AS852        157      117       40   25.5%   AGT Advance Communication
AS6181        66       26       40   60.6%   FUSE-NET
AS7122       120       82       38   31.7%   MTS ADVANCED Network Policy
AS762        118       81       37   31.4%   WELLFLEET-AS
AS10459       47       10       37   78.7%   WANSASN

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