North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: The Cidr Report
On Fri, 25 May 2001, Tony Bates wrote: Something wrong here. Today is not May 25 and we *never* see a drop of 3K prefixes. -Hank > > > This is an auto-generated mail on Fri May 25 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 theamount 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 A summary of the last weeks changes in terms of withdrawn and 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 25May01 > > > 0) General Status > > Table History > ------------- > > Date Prefixes > 040501 104512 > 050501 104646 > 060501 104816 > 070501 106340 > 080501 105979 > 230501 101875 > 240501 101755 > 250501 101869 > > Check http://www.employees.org/~tbates/cidr.plot.html for a plot > ofthe table history. > > > Possible Bogus Routes > --------------------- > > *** Bogus 80.9.0.0/18 from AS3215 > *** Bogus 80.9.128.0/18 from AS3215 > *** Bogus 80.64.0.0/20 from AS3246 > *** Bogus 80.64.128.0/20 from AS20751 > *** Bogus 80.64.224.0/20 from AS3259 > *** Bogus 80.65.128.0/20 from AS9057 > *** Bogus 80.65.224.0/20 from AS13193 > *** Bogus 80.66.32.0/20 from AS702 > *** Bogus 80.66.128.0/20 from AS1239 > *** Bogus 80.67.0.0/20 from AS20750 > *** Bogus 80.67.32.0/20 from AS20752 > *** Bogus 218.2.0.0/15 from AS4134 > *** Bogus 218.4.0.0/16 from AS4134 > *** Bogus 218.6.128.0/17 from AS4134 > > AS Summary > ---------- > > Number of ASes in routing system: 10851 > > Number of ASes announcing only one prefix: 6431 (3657 cidr, 2774 classful) > > Largest number ofcidr routes: 975 announced by AS701 > Largest number of classful routes: 1409 announced by AS701 > > > > 1) Gains by aggregating at the origin AS level > > --- 25May01 --- > ASnum NetsNow NetsCIDR NetGain% Gain Description > > AS1221 1391 1031 360 25.9% TELSTRA-AS > AS13999 103 11 92 89.3% autonomous system number assigned > AS11252 91 33 58 63.7% autonomous system number assigned > AS226 150 93 57 38.0% Los Nettos > AS16758 63 6 57 90.5% autonomous system number assigned > AS2149 320 265 55 17.2% PSINET-2 > AS1 592 539 53 9.0% GTE Internetworking > AS11686 143 91 52 36.4% Education Networks of America > AS10692 66 14 52 78.8% DLS Internet Services AS10692 > AS17561 111 60 51 45.9% UNKNOWN > AS13544 69 22 47 68.1% autonomous system number assigned > AS11774 74 28 46 62.2% AS 11774 Object > AS1267 67 25 42 62.7% Infostrada S.p.A. > AS1237 94 52 42 44.7% KISTI > AS1239 441 400 41 9.3% SprintLink Backbone > AS12235 48 7 41 85.4% Cove Software Systems Inc > AS2652 113 75 38 33.6% Government of Canada (GENet) back > AS209 263 226 37 14.1% Qwest Communications > AS19834 49 12 37 75.5% autonomous system number assigned > AS18447 46 9 37 80.4% autonomous system number assigned > AS13345 67 30 37 55.2% autonomous system number assigned > AS14 51 15 36 70.6% Columbia University in the City o > AS12302 63 28 35 55.6% MobiFon S.A. > AS2007 153 119 34 22.2% Infonet Services Corporation > AS11507 87 53 34 39.1% TouchAmerica Montana > AS10620 52 18 34 65.4% autonomous system number assigned > AS11311 42 9 33 78.6% autonomous system number assigned > AS10479 40 7 33 82.5% ITESM-Rectoria Zona Norte > AS1913 115 83 32 27.8% autonomous system number assigned > AS11859 45 13 32 71.1% autonomous system number assigned > > > 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 > Hank Nussbacher
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