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Re: The Cidr Report
From: Tony Bates <tbates () cisco com>
Date: Fri, 30 Jan 1998 12:25:52 -0800

As you can see things are startng to move up recently. I'd suggest
folks take a look at the "Interesting Aggregates" section on the web
page as it appears there's been a large influx of routes
here. Particularly AS719 who look like they may have a config error
with many many /28s showing up. They aren't the only ones as there
seems to be a lot of potential savings to be made here just by
eye-balling the aggregates.

        Thanks,
                        --Tony

 Tony Bates <tbates () cisco com> writes:
  * 
  * This is an auto-generated mail on Fri Jan 30 12:00:00 PST 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  *       A summary of the last weeks changes in terms of withdrawn and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 30Jan98
  * 
  * 
  * 0) General Status
  * 
  * Table History
  * -------------
  * 
  * Date        Prefixes
  * 230198      48658
  * 240198      48671
  * 250198      48612
  * 260198      49037
  * 270198      49125
  * 280198      49117
  * 290198      50396
  * 300198      50242
  * 
  * Check http://www.employees.org/~tbates/cidr.plot.html for a plot
  * of the table history.
  * 
  * 
  * Possible Bogus Routes
  * ---------------------
  * 
  * *** Bogus 95.9.43.0/24 from AS2878
  * *** Bogus 212.192.0.0/16 from AS5568
  * *** Bogus 212.255.0.0/16 from AS2871
  * 
  * AS Summary
  * ----------
  * 
  * Number of ASes in routing system:                 3169
  * 
  * Number of ASes announcing only one prefix:        1477 (766 cidr, 711 class
  * ful)
  * 
  * Largest number of  cidr routes:                   1103 announced by  AS719
  * Largest number of classful routes:                1022 announced by  AS701
  * 
  * 
  * 
  * 1) Gains by aggregating at the origin AS level
  * 
  *  --- 30Jan98 ---
  * ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
  * 
  * AS2493       726      386      340   46.8%   iSTAR Internet, Inc.
  * AS6235       495      252      243   49.1%   Intermedia Communications, Inc
  * .
  * AS4293       424      215      209   49.3%   IMCI
  * AS174        856      659      197   23.0%   Performance Systems Internatio
  * nal
  * AS816        598      417      181   30.3%   UUNET Canada (ASN-UUNETCA-AS4)
  * AS3602       456      304      152   33.3%   Sprint Canada Inc.
  * AS3749       200       59      141   70.5%   TECNET
  * AS701       1022      909      113   11.1%   Alternet
  * AS1785       456      371       85   18.6%   NYSERNet Backbone
  * AS3751       123       47       76   61.8%   SNET-AS
  * AS2048       165       93       72   43.6%   LaNet
  * AS5668       107       40       67   62.6%   Century Telephone Inc.
  * AS1239       602      539       63   10.5%   SprintLink Backbone
  * AS3804       203      141       62   30.5%   Bell Solutions
  * AS1          842      784       58    6.9%   BBNPLANET
  * AS271        111       56       55   49.5%   BCnet Backbone
  * AS3464       119       67       52   43.7%   Alabama Research and Education
  *  Ne
  * AS719        519      468       51    9.8%   LANLINK autonomous system
  * AS549        210      160       50   23.8%   ONet Backbone
  * AS7545       115       67       48   41.7%   TPG Internet Pty Ltd
  * AS72          84       36       48   57.1%   Schlumberger Information Netwo
  * rk
  * AS4763       128       80       48   37.5%   Telstra New Zealand
  * AS1221       263      218       45   17.1%   AARNET-AS
  * AS7046       123       81       42   34.1%   UUNET-CUSTOMER
  * AS2711        97       55       42   43.3%   SUNBELT-AS
  * AS684         85       44       41   48.2%   Manitoba Regional Network Back
  * bon
  * AS3561       914      873       41    4.5%   MCI
  * AS852        155      116       39   25.2%   AGT Advance Communication
  * AS6335        62       24       38   61.3%   NTRNET
  * AS1691       162      124       38   23.5%   BCTEL
  * 
  * 
  * 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


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