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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 Jul 6 23:00:00 PDT 2001
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A summary of the last weeks changes in terms of withdrawn and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 GX Networks 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 06Jul01
0) General Status
Table History
-------------
Date Prefixes
290601 100654
300601 101008
010701 100929
020701 100843
030701 101022
040701 101049
050701 100922
060701 101036
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
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Number of ASes in routing system: 11154
Number of ASes announcing only one prefix: 6601 (3771 cidr, 2830 classful)
Largest number of cidr routes: 1007 announced by AS701
Largest number of classful routes: 1423 announced by AS701
1) Gains by aggregating at the origin AS level
--- 06Jul01 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1342 1000 342 25.5% UNKNOWN
AS701 1423 1209 214 15.0% UNKNOWN
AS4293 394 282 112 28.4% UNKNOWN
AS6595 158 57 101 63.9% UNKNOWN
AS7018 743 651 92 12.4% UNKNOWN
AS6429 201 109 92 45.8% UNKNOWN
AS705 225 134 91 40.4% UNKNOWN
AS4755 207 122 85 41.1% UNKNOWN
AS4151 159 77 82 51.6% UNKNOWN
AS8013 298 218 80 26.8% UNKNOWN
AS13999 94 15 79 84.0% UNKNOWN
AS724 246 172 74 30.1% UNKNOWN
AS577 247 174 73 29.6% UNKNOWN
AS6471 118 55 63 53.4% UNKNOWN
AS3464 152 90 62 40.8% UNKNOWN
AS7046 306 245 61 19.9% UNKNOWN
AS1 584 524 60 10.3% UNKNOWN
AS16758 63 6 57 90.5% UNKNOWN
AS1239 446 391 55 12.3% UNKNOWN
AS226 144 91 53 36.8% UNKNOWN
AS6413 65 13 52 80.0% UNKNOWN
AS3908 205 154 51 24.9% UNKNOWN
AS17561 112 61 51 45.5% UNKNOWN
AS852 211 161 50 23.7% UNKNOWN
AS2149 323 273 50 15.5% UNKNOWN
AS9842 54 5 49 90.7% UNKNOWN
AS12302 79 30 49 62.0% MobiFon S.A.
AS5106 81 33 48 59.3% UNKNOWN
AS15290 237 191 46 19.4% UNKNOWN
AS3602 221 176 45 20.4% UNKNOWN
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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