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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 16 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A summary of the last weeks changes in terms of withdrawn and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 16Jan98
0) General Status
Table History
-------------
Date Prefixes
090198 47514
100198 47408
110198 47661
120198 47816
130198 47654
140198 47809
150198 47905
160198 48136
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 98.6.10.0/24 from AS701
AS Summary
----------
Number of ASes in routing system: 3118
Number of ASes announcing only one prefix: 1448 (743 cidr, 705 classful)
Largest number of cidr routes: 458 announced by AS3561
Largest number of classful routes: 991 announced by AS701
1) Gains by aggregating at the origin AS level
--- 16Jan98 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 696 390 306 44.0% iSTAR Internet, Inc.
AS4293 417 205 212 50.8% IMCI
AS174 880 675 205 23.3% Performance Systems International
AS816 577 406 171 29.6% UUNET Canada (ASN-UUNETCA-AS4)
AS3602 450 300 150 33.3% Sprint Canada Inc.
AS3749 201 60 141 70.1% TECNET
AS701 991 888 103 10.4% Alternet
AS3751 122 46 76 62.3% SNET-AS
AS721 352 278 74 21.0% DLA-ASNBLOCK-AS
AS2048 162 90 72 44.4% LaNet
AS5668 103 36 67 65.0% Century Telephone Inc.
AS3804 203 141 62 30.5% Bell Solutions
AS1 852 791 61 7.2% BBNPLANET
AS549 217 162 55 25.3% ONet Backbone
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 578 526 52 9.0% SprintLink Backbone
AS72 84 36 48 57.1% Schlumberger Information Network
AS4763 127 79 48 37.8% Telstra New Zealand
AS719 502 457 45 9.0% LANLINK autonomous system
AS1221 261 216 45 17.2% AARNET-AS
AS4648 194 150 44 22.7% NZIX 2
AS684 84 42 42 50.0% Manitoba Regional Network Backbon
AS3561 927 885 42 4.5% MCI
AS3493 194 154 40 20.6% INTERLINK
AS4740 331 292 39 11.8% ASN-OZEMAIL (Ozemail Pty Ltd)
AS2711 93 54 39 41.9% SUNBELT-AS
AS1691 161 123 38 23.6% BCTEL
AS6332 81 44 37 45.7% TELNOR
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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