Re: The Cidr Report

  • To: nanog at merit dot edu, eof-list at ripe dot net, apops at apnic dot net, routing-wg at ripe dot net
  • Subject: Re: The Cidr Report
  • From: Tony Bates <tbates at cisco dot com>
  • Date: Fri, 13 Feb 1998 12:25:47 -0800
  • In-reply-to: Your message of Fri, 13 Feb 1998 12:00:02 PST. <199802132000.MAA02101 at lovefm dot cisco dot com>
  • Sender: owner-apops@apnic.net
    • Please note this week's report is not accurate. This is due to an
      internal move of my workstation and consequently losing access to the
      router I use to get the information from. Normal service should resume in
      the next couple of days.
      
      Apologies for the inconvenience casued.
      
      		--Tony
      
       Tony Bates <tbates at cisco dot com> writes:
        * 
        * This is an auto-generated mail on Fri Feb 13 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        *       A summary of the last weeks changes in terms of withdrawn and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 13Feb98
        * 
        * 
        * 0) General Status
        * 
        * Table History
        * -------------
        * 
        * Date	Prefixes
        * 290198	50396
        * 300198	50242
        * 310198	49848
        * 010298	49715
        * 020298	49739
        * 030298	49600
        * 040298	49877
        * 050298	49484
        * 
        * 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:                 2407
        * 
        * Number of ASes announcing only one prefix:         718 (0 cidr, 718 classfu
        * l)
        * 
        * Largest number of  cidr routes:                      0 announced by       
        * Largest number of classful routes:                1044 announced by  AS701
        * 
        * 
        * 
        * 1) Gains by aggregating at the origin AS level
        * 
        *  --- 13Feb98 ---
        * ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
        * 
        * AS2493       691      368      323   46.7%   iSTAR Internet, Inc.
        * AS6235       495      252      243   49.1%   Intermedia Communications, Inc
        * .
        * AS4293       430      210      220   51.2%   IMCI
        * AS174        874      673      201   23.0%   Performance Systems Internatio
        * nal
        * AS816        635      444      191   30.1%   UUNET Canada (ASN-UUNETCA-AS4)
        * AS3602       455      304      151   33.2%   Sprint Canada Inc.
        * AS3749       202       61      141   69.8%   TECNET
        * AS701       1044      931      113   10.8%   Alternet
        * AS3336       109       19       90   82.6%   Internet Services, Kolumbus pr
        * oje
        * AS3751       125       48       77   61.6%   SNET-AS
        * AS5668       107       40       67   62.6%   Century Telephone Inc.
        * AS3804       204      142       62   30.4%   WORLDLINX
        * AS2048       154       92       62   40.3%   LaNet
        * AS1239       596      534       62   10.4%   SprintLink Backbone
        * AS3221        92       33       59   64.1%   EENet Autonomous System
        * AS1          840      782       58    6.9%   BBNPLANET
        * AS271        110       55       55   50.0%   BCNET-AS
        * AS719        519      468       51    9.8%   LANLINK autonomous system
        * AS549        214      163       51   23.8%   ONET-AS
        * AS3464       115       64       51   44.3%   Alabama Research and Education
        *  Ne
        * AS1221       263      214       49   18.6%   AARNET-AS
        * AS72          84       36       48   57.1%   Schlumberger Information Netwo
        * rk
        * AS4763       128       80       48   37.5%   Telstra New Zealand
        * AS7545       114       69       45   39.5%   TPG Internet Pty Ltd
        * AS684         86       42       44   51.2%   MBNET-AS
        * AS4740       354      312       42   11.9%   ASN-OZEMAIL (Ozemail Pty Ltd)
        * AS2711        97       55       42   43.3%   SUNBELT-AS
        * AS7046       130       89       41   31.5%   UUNET-CUSTOMER
        * AS3561       897      857       40    4.5%   MCI
        * AS852        156      117       39   25.0%   CANET-ASN
        * 
        * 
        * 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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