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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Also see http://www.caida.org for more information about Internet statistics
collection research efforts.
Reserved Network and Host Announcements
---------------------------------------
202.61.225.128/27 at Mae-East from VisiNet (AS6261) ASPATH=6261 7594 7586 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 35731 + 10788 = 46519 BGP prefix updates
2. SPRINT (AS1239) at Mae-East 9111 + 1443 = 10554 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 5648 + 2883 = 8531 BGP prefix updates
4. NetKonect (AS6716) at Mae-East 0 + 8244 = 8244 BGP prefix updates
5. AT&T (AS6478) at AADS 5115 + 1906 = 7021 BGP prefix updates
6. CAIS (AS3491) at AADS 4856 + 1979 = 6835 BGP prefix updates
7. idc (AS4694) at Mae-West 0 + 4587 = 4587 BGP prefix updates
8. USCyber (AS4136) at Mae-East 0 + 4081 = 4081 BGP prefix updates
9. Genuity (AS3847) at AADS 1117 + 1039 = 2156 BGP prefix updates
10. ANS (AS1673) at Mae-East 1647 + 369 = 2016 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. IBMGlobal(AS2685) at AADS 370.67 (1112 ann, 3 entries)
2. OurWorld(AS7594) at Paix 284.00 (284 ann, 1 entries)
3. u-net(AS5669) at Paix 13.38 (107 ann, 8 entries)
4. Cableol(AS5089) at Mae-East 9.00 (36 ann, 4 entries)
5. CAIS(AS3491) at AADS 5.77 (4856 ann, 841 entries)
6. HLC(AS4565) at AADS 5.63 (377 ann, 67 entries)
7. CableInet(AS5462) at Mae-East 5.13 (154 ann, 30 entries)
8. EXODUS(AS3967) at AADS 4.11 (288 ann, 70 entries)
9. OarNet(AS600) at AADS 3.60 (681 ann, 189 entries)
10. IOS(AS5000) at AADS 3.40 (68 ann, 20 entries)
11. Netcom(AS2551) at AADS 3.15 (975 ann, 310 entries)
12. INS(AS6660) at Mae-East 3.05 (177 ann, 58 entries)
13. Genuity(AS3847) at AADS 3.04 (1117 ann, 368 entries)
14. Internex(AS2828) at AADS 2.88 (207 ann, 72 entries)
15. AT&T(AS6478) at AADS 2.34 (5115 ann, 2184 entries)
16. ThePlanet(AS5388) at Mae-West 2.33 (182 ann, 78 entries)
17. VisiNet(AS6261) at Mae-East 2.10 (345 ann, 164 entries)
18. internetMCI(AS3561) at AADS 2.08 (35731 ann, 17200 entries)
19. CableInet(AS5462) at Mae-West 1.88 (47 ann, 25 entries)
20. OLEANE(AS2917) at Mae-East 1.75 (77 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 3278
2. internetMCI (3561) at aads 782
3. BBNplanet (1) at mae-east 437
4. AGIS (4200) at mae-east 335
5. IBMGlobal (2685) at mae-west 223
6. Grid (6113) at mae-west 201
7. CAIS (3491) at aads 195
8. Digex (2548) at mae-east 186
9. AT&T (6478) at pb 178
10. INAP.net (5646) at aads 169
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT