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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 15 12:00:00 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A summary of the last weeks changes in terms of withdrawn and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.
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CIDR REPORT for 15May98
0) General Status
Table History
-------------
Date Prefixes
080598 51559
090598 51630
100598 51503
110598 51419
120598 52655
130598 51474
140598 51492
150598 51370
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 222.222.222.0 from AS701
AS Summary
----------
Number of ASes in routing system: 3564
Number of ASes announcing only one prefix: 1698 (890 cidr, 808 classful)
Largest number of cidr routes: 367 announced by AS3561
Largest number of classful routes: 1069 announced by AS701
1) Gains by aggregating at the origin AS level
--- 15May98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS4293 464 239 225 48.5% IMCI
AS816 697 474 223 32.0% UUNET Canada (ASN-UUNETCA-AS4)
AS2493 535 315 220 41.1% iSTAR Internet, Inc.
AS174 819 626 193 23.6% Performance Systems International
AS3602 484 307 177 36.6% Sprint Canada Inc.
AS701 1069 896 173 16.2% Alternet
AS3749 219 64 155 70.8% TECNET
AS2048 162 90 72 44.4% LaNet
AS5668 115 46 69 60.0% Century Telephone Inc.
AS3221 110 41 69 62.7% EENet Autonomous System
AS3248 128 60 68 53.1% VIAnet
AS4755 95 28 67 70.5% Videsh Sanchar Nigam Ltd. India
AS10928 107 44 63 58.9% UNKNOWN
AS7046 194 135 59 30.4% UUNET-CUSTOMER
AS271 112 53 59 52.7% BCnet Backbone
AS3804 200 142 58 29.0% Bell Solutions
AS549 208 154 54 26.0% ONet Backbone
AS1221 276 225 51 18.5% AARNET-AS
AS72 85 37 48 56.5% Schlumberger Information Network
AS1239 538 491 47 8.7% SprintLink Backbone
AS4763 121 75 46 38.0% Telstra New Zealand
AS4740 382 336 46 12.0% ASN-OZEMAIL (Ozemail Pty Ltd)
AS7545 105 60 45 42.9% TPG Internet Pty Ltd
AS852 157 117 40 25.5% AGT Advance Communication
AS6335 64 24 40 62.5% NTRNET
AS684 93 54 39 41.9% Manitoba Regional Network Backbon
AS4200 127 88 39 30.7% AGIS (Apex Global Information Ser
AS1982 154 115 39 25.3% Northwest Nexus, Inc.
AS762 118 80 38 32.2% WELLFLEET-AS
AS3493 164 126 38 23.2% INTERLINK
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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