See http://www.merit.edu/ipma for a more detailed report on
routing problems and recommendations on ways service providers can
limit the spread of invalid routing information.
Send comments and questions to ipma@merit.edu
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A hypermail archive is available at
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Also see http://www.caida.org for more information about Internet statistics
collection research efforts.
Reserved Network and Host Announcements
---------------------------------------
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
193.235.137.16/28 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
193.235.137.32/28 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
194.117.132.180/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.180/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.184/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.184/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.188/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.188/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.224/27 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.224/27 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.207.0.128/28 at Mae-West from VBC (AS6320) ASPATH=6320 IGP
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at Mae-West from Grid (AS6113) ASPATH=6113 IGP
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 35 + 1510276 = 1510311 BGP prefix updates
2. Interpath (AS3407) at Mae-East 717 + 547754 = 548471 BGP prefix updates
3. GetNet (AS5784) at Mae-East 10 + 511255 = 511265 BGP prefix updates
4. USCyber (AS4136) at Mae-East 22 + 296724 = 296746 BGP prefix updates
5. idc (AS4694) at Mae-West 9 + 256215 = 256224 BGP prefix updates
6. SPRINT (AS1239) at Mae-East 181612 + 32854 = 214466 BGP prefix updates
7. telia (AS1299) at Mae-East 1670 + 190834 = 192504 BGP prefix updates
8. internetMCI (AS3561) at Mae-East 133342 + 11459 = 144801 BGP prefix updates
9. Netcom (AS2551) at Mae-East 1098 + 45773 = 46871 BGP prefix updates
10. Netcom (AS2551) at Mae-West 413 + 45768 = 46181 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. NetAxs(AS4969) at Mae-East 95.23 (5714 ann, 60 entries)
2. CAIS(AS3491) at Mae-West 26.52 (18482 ann, 697 entries)
3. AGIS(AS4200) at Mae-East 22.09 (22757 ann, 1030 entries)
4. HLC(AS4565) at Mae-East 18.64 (1286 ann, 69 entries)
5. CAIS(AS3491) at AADS 18.08 (12784 ann, 707 entries)
6. INS(AS6660) at Mae-East 15.93 (1211 ann, 76 entries)
7. INAP.net(AS5646) at Mae-East 14.61 (23557 ann, 1612 entries)
8. HLC(AS4565) at Mae-West 14.43 (981 ann, 68 entries)
9. HLC(AS4565) at AADS 14.12 (974 ann, 69 entries)
10. CompuServe(AS4183) at Mae-East 14.04 (786 ann, 56 entries)
11. Interpath(AS3407) at Mae-East 13.28 (717 ann, 54 entries)
12. Voicenet(AS3932) at Mae-East 13.00 (689 ann, 53 entries)
13. ANS(AS1673) at Mae-East 12.28 (20426 ann, 1663 entries)
14. WebSecure(AS6583) at Mae-East 12.00 (24 ann, 2 entries)
15. Grid(AS6113) at Mae-East 11.91 (12915 ann, 1084 entries)
16. DISC(AS7170) at Mae-East 11.73 (915 ann, 78 entries)
17. Nacamar(AS3257) at Mae-East 11.14 (568 ann, 51 entries)
18. Seastrom(AS3066) at Mae-East 11.00 (22 ann, 2 entries)
19. EUnet(AS286) at Mae-East 10.87 (12343 ann, 1135 entries)
20. CableInet(AS5462) at Mae-West 10.02 (441 ann, 44 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3796
2. internetMCI (3561) at aads 633
3. BBNplanet (1) at mae-west 414
4. AGIS (4200) at mae-east 273
5. AT&T (6478) at mae-west 215
6. IBMGlobal (2685) at aads 183
7. CWIX (5683) at mae-west 182
8. Grid (6113) at pb 172
9. Digex (2548) at mae-west 151
10. NASA (297) at mae-west 147
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT