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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 Jan 9 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A summary of the last weeks changes in terms of withdrawn and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.
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CIDR REPORT for 09Jan98
0) General Status
Table History
-------------
Date Prefixes
020198 47531
030198 47597
040198 35241
050198 47479
060198 47617
070198 47694
080198 47566
090198 47514
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: 3094
Number of ASes announcing only one prefix: 1455 (749 cidr, 706 classful)
Largest number of cidr routes: 463 announced by AS3561
Largest number of classful routes: 985 announced by AS701
1) Gains by aggregating at the origin AS level
--- 09Jan98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 668 376 292 43.7% iSTAR Internet, Inc.
AS4293 414 202 212 51.2% IMCI
AS174 890 681 209 23.5% Performance Systems International
AS816 568 396 172 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS3602 447 300 147 32.9% Sprint Canada Inc.
AS3749 201 60 141 70.1% TECNET
AS701 985 884 101 10.3% Alternet
AS839 123 31 92 74.8% North West Territories Regional N
AS3751 122 46 76 62.3% SNET-AS
AS2048 164 92 72 43.9% LaNet
AS5668 103 36 67 65.0% Century Telephone Inc.
AS3804 203 139 64 31.5% Bell Solutions
AS1 863 804 59 6.8% BBNPLANET
AS3464 120 65 55 45.8% Alabama Research and Education Ne
AS271 111 56 55 49.5% BCnet Backbone
AS7545 115 63 52 45.2% TPG Internet Pty Ltd
AS1239 581 529 52 9.0% SprintLink Backbone
AS4763 127 76 51 40.2% Telstra New Zealand
AS4648 196 146 50 25.5% NZIX 2
AS549 202 153 49 24.3% ONet Backbone
AS72 84 36 48 57.1% Schlumberger Information Network
AS719 506 460 46 9.1% LANLINK autonomous system
AS1221 258 213 45 17.4% AARNET-AS
AS3561 934 892 42 4.5% MCI
AS684 83 43 40 48.2% Manitoba Regional Network Backbon
AS4740 332 293 39 11.7% ASN-OZEMAIL (Ozemail Pty Ltd)
AS2711 94 55 39 41.5% SUNBELT-AS
AS1691 165 126 39 23.6% BCTEL
AS6181 60 24 36 60.0% FUSE-NET
AS1591 137 101 36 26.3% SAIC DISM
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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