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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 Nov 7 12:00:00 PST 1997
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A summary of the last weeks changes in terms of withdrawn and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 07Nov97
0) General Status
Table History
-------------
Date Prefixes
271097 46244
281097 47092
291097 47120
301097 47207
311097 46221
011197 46279
021197 46023
031197 46334
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: 2194
Number of ASes announcing only one prefix: 626 (0 cidr, 626 classful)
Largest number of cidr routes: 0 announced by
Largest number of classful routes: 942 announced by AS701
1) Gains by aggregating at the origin AS level
--- 07Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 863 666 197 22.8% Performance Systems International
AS4293 364 183 181 49.7% IMCI
AS816 518 361 157 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 122 36 86 70.5% TECNET
AS2685 172 89 83 48.3% IBM Global Network - US
AS701 942 862 80 8.5% Alternet
AS2704 253 176 77 30.4% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 393 337 56 14.2% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 114 61 53 46.5% ASC-NET
AS1 881 830 51 5.8% BBNPLANET
AS4763 113 66 47 41.6% Telstra New Zealand
AS549 215 169 46 21.4% ONet Backbone
AS271 106 60 46 43.4% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 06Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 863 666 197 22.8% Performance Systems International
AS4293 364 183 181 49.7% IMCI
AS816 518 361 157 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 122 36 86 70.5% TECNET
AS2685 172 89 83 48.3% IBM Global Network - US
AS701 942 862 80 8.5% Alternet
AS2704 253 176 77 30.4% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 393 337 56 14.2% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 114 61 53 46.5% ASC-NET
AS1 881 830 51 5.8% BBNPLANET
AS4763 113 66 47 41.6% Telstra New Zealand
AS549 215 169 46 21.4% ONet Backbone
AS271 106 60 46 43.4% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 05Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 863 666 197 22.8% Performance Systems International
AS4293 364 183 181 49.7% IMCI
AS816 518 361 157 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 122 36 86 70.5% TECNET
AS2685 172 89 83 48.3% IBM Global Network - US
AS701 942 862 80 8.5% Alternet
AS2704 253 176 77 30.4% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 393 337 56 14.2% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 114 61 53 46.5% ASC-NET
AS1 881 830 51 5.8% BBNPLANET
AS4763 113 66 47 41.6% Telstra New Zealand
AS549 215 169 46 21.4% ONet Backbone
AS271 106 60 46 43.4% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 04Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 863 666 197 22.8% Performance Systems International
AS4293 364 183 181 49.7% IMCI
AS816 518 361 157 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 122 36 86 70.5% TECNET
AS2685 172 89 83 48.3% IBM Global Network - US
AS701 942 862 80 8.5% Alternet
AS2704 253 176 77 30.4% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 393 337 56 14.2% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 114 61 53 46.5% ASC-NET
AS1 881 830 51 5.8% BBNPLANET
AS4763 113 66 47 41.6% Telstra New Zealand
AS549 215 169 46 21.4% ONet Backbone
AS271 106 60 46 43.4% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 03Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 863 666 197 22.8% Performance Systems International
AS4293 364 183 181 49.7% IMCI
AS816 518 361 157 30.3% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 122 36 86 70.5% TECNET
AS2685 172 89 83 48.3% IBM Global Network - US
AS701 942 862 80 8.5% Alternet
AS2704 253 176 77 30.4% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 393 337 56 14.2% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 114 61 53 46.5% ASC-NET
AS1 881 830 51 5.8% BBNPLANET
AS4763 113 66 47 41.6% Telstra New Zealand
AS549 215 169 46 21.4% ONet Backbone
AS271 106 60 46 43.4% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 02Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 733 412 321 43.8% iSTAR Internet, Inc.
AS3602 545 311 234 42.9% Sprint Canada Inc.
AS174 924 705 219 23.7% Performance Systems International
AS4293 364 184 180 49.5% IMCI
AS816 520 364 156 30.0% UUNET Canada (ASN-UUNETCA-AS4)
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 123 36 87 70.7% TECNET
AS701 946 866 80 8.5% Alternet
AS2704 252 177 75 29.8% HOOKUP-NET-A
AS2048 159 91 68 42.8% LaNet
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 392 336 56 14.3% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS3464 113 62 51 45.1% ASC-NET
AS1 879 828 51 5.8% BBNPLANET
AS549 216 168 48 22.2% ONet Backbone
AS4763 113 66 47 41.6% Telstra New Zealand
AS271 105 60 45 42.9% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 936 894 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
AS6412 48 12 36 75.0% Gulfnet International
--- 01Nov97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 731 411 320 43.8% iSTAR Internet, Inc.
AS3602 548 312 236 43.1% Sprint Canada Inc.
AS174 929 709 220 23.7% Performance Systems International
AS4293 365 180 185 50.7% IMCI
AS816 520 363 157 30.2% UUNET Canada (ASN-UUNETCA-AS4)
AS2685 269 123 146 54.3% IBM Global Network - US
AS719 682 560 122 17.9% LANLINK autonomous system
AS839 124 27 97 78.2% North West Territories Regional N
AS3749 123 36 87 70.7% TECNET
AS701 944 864 80 8.5% Alternet
AS2704 251 173 78 31.1% HOOKUP-NET-A
AS3804 200 136 64 32.0% Bell Solutions
AS4648 208 148 60 28.8% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS2048 141 84 57 40.4% LaNet
AS1967 92 36 56 60.9% Middle East Technical University
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 392 336 56 14.3% AARNET-AS
AS72 84 30 54 64.3% Schlumberger Information Network
AS3464 117 63 54 46.2% ASC-NET
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS1 885 834 51 5.8% BBNPLANET
AS549 220 172 48 21.8% ONet Backbone
AS4763 113 66 47 41.6% Telstra New Zealand
AS271 107 61 46 43.0% BCnet Backbone
AS1691 170 127 43 25.3% BCTEL
AS3561 935 893 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
--- 31Oct97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 753 426 327 43.4% iSTAR Internet, Inc.
AS3602 546 311 235 43.0% Sprint Canada Inc.
AS174 934 718 216 23.1% Performance Systems International
AS4293 367 178 189 51.5% IMCI
AS816 511 360 151 29.5% UUNET Canada (ASN-UUNETCA-AS4)
AS2685 269 123 146 54.3% IBM Global Network - US
AS839 124 27 97 78.2% North West Territories Regional N
AS719 620 523 97 15.6% LANLINK autonomous system
AS3749 123 36 87 70.7% TECNET
AS701 946 867 79 8.4% Alternet
AS2704 253 177 76 30.0% HOOKUP-NET-A
AS2048 161 91 70 43.5% LaNet
AS1967 109 43 66 60.6% Middle East Technical University
AS3804 201 137 64 31.8% Bell Solutions
AS4648 204 144 60 29.4% NZIX 2
AS5668 94 36 58 61.7% Century Telephone Inc.
AS1239 611 555 56 9.2% SprintLink Backbone
AS1221 392 336 56 14.3% AARNET-AS
AS3464 118 63 55 46.6% ASC-NET
AS72 84 30 54 64.3% Schlumberger Information Network
AS4747 135 82 53 39.3% Taiwan Telecommunication Network
AS1 885 834 51 5.8% BBNPLANET
AS549 220 172 48 21.8% ONet Backbone
AS4763 113 66 47 41.6% Telstra New Zealand
AS271 105 60 45 42.9% BCnet Backbone
AS3561 936 894 42 4.5% MCI
AS2711 96 57 39 40.6% SUNBELT-AS
AS1691 160 122 38 23.8% BCTEL
AS3564 61 24 37 60.7% Microserve Infromation Systems In
AS7545 118 82 36 30.5% TPG Internet Pty Ltd
2) Weekly Delta
This a daily snapshot of changes in classful routes being withdrawn and added.
the deltas are calculated over a rolling 7 day period. Please bear in mind this
is purely a "snapshot" and a large flucuation could be caused by a connectivity
problem for example. However, this does give some indication of service
providers that are moving to classless routing.
Top 20 Withdrawn Classful Routes from 31Oct97 to 07Nov97
-97 AS2685 IBM Global Network - US
-71 AS174 Performance Systems International
-34 AS5769 Videotron Telecom Ltee
-32 AS8013 PSINET-CA
-31 AS1761 Texas Dept. of Information Resour
-24 AS6064 INTERSYS-AS
-20 AS2493 iSTAR Internet, Inc.
-17 AS1967 Middle East Technical University
-13 AS7470 ASIA INFONET Co.,Ltd.
-10 AS2150 California State University Netwo
-7 AS6755 ASN - TURNET
-6 AS1767 IndNet AS
-5 AS3388 UNM-AS
-4 AS705 ALTERNET-AS
-3 AS52 UCLA
-2 AS4755 Videsh Sanchar Nigam Ltd. India
-1 AS5486 Euronet Digital Communications
Top 20 Added Classful Routes from 31Oct97 to 07Nov97
76 AS3301 TeliaNet Sweden
62 AS719 LANLINK autonomous system
10 AS1290 PSINet UK Ltd.
7 AS816 UUNET Canada (ASN-UUNETCA-AS4)
6 AS2563 KoRea Education Network
5 AS7497 Computer Network Information Cent
4 AS3267 RUNNet
3 AS6402 OneCall Communications Inc.
2 AS1236 GTEGSC
1 AS271 BCnet Backbone
This a daily snapshot of changes in classles routes being withdrawn and added.
Top 20 Withdrawn Classles Routes from 31Oct97 to 07Nov97
Top 20 Added Classles Routes from 31Oct97 to 07Nov97
3) Interesting aggregates
List of possibly interesting aggregates
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Aggregate | Origin | AS Description | Netname
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