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
---------------------------------------
No routing problems were detected
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 374988 + 77342 = 452330 BGP prefix updates
2. internetMCI (AS3561) at Mae-East 36671 + 5455 = 42126 BGP prefix updates
3. USCyber (AS4136) at Mae-East 0 + 22999 = 22999 BGP prefix updates
4. internetMCI (AS3561) at PacBell 18439 + 1614 = 20053 BGP prefix updates
5. SPRINT (AS1239) at Mae-East 10991 + 2403 = 13394 BGP prefix updates
6. idc (AS4694) at Mae-West 0 + 13188 = 13188 BGP prefix updates
7. NetKonect (AS6716) at Mae-East 0 + 11771 = 11771 BGP prefix updates
8. MIBX (AS6218) at PacBell 2429 + 2171 = 4600 BGP prefix updates
9. CAIS (AS3491) at AADS 2950 + 923 = 3873 BGP prefix updates
10. telia (AS1299) at Mae-East 86 + 2758 = 2844 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. MIBX(AS6218) at PacBell 83.76 (2429 ann, 29 entries)
2. internetMCI(AS3561) at AADS 21.61 (374988 ann, 17351 entries)
3. WebSecure(AS6583) at AADS 9.00 (9 ann, 1 entries)
4. Internex(AS2828) at AADS 7.31 (468 ann, 64 entries)
5. HLC(AS4565) at AADS 6.26 (407 ann, 65 entries)
6. IBMGlobal(AS2685) at AADS 4.37 (2087 ann, 478 entries)
7. OLEANE(AS2917) at Mae-East 3.93 (173 ann, 44 entries)
8. VisiNet(AS6261) at Mae-East 3.43 (501 ann, 146 entries)
9. Alpha(AS4550) at AADS 3.37 (138 ann, 41 entries)
10. VisiNet(AS6261) at Mae-West 3.11 (454 ann, 146 entries)
11. CAIS(AS3491) at AADS 2.50 (2950 ann, 1180 entries)
12. HLC(AS4565) at Paix 2.17 (141 ann, 65 entries)
13. internetMCI(AS3561) at Mae-East 2.11 (36671 ann, 17344 entries)
14. u-net(AS5669) at Paix 1.88 (15 ann, 8 entries)
15. OarNet(AS600) at AADS 1.74 (328 ann, 188 entries)
16. NetAxs(AS4969) at Mae-East 1.67 (400 ann, 240 entries)
17. Internex(AS2828) at Paix 1.60 (101 ann, 63 entries)
18. Primenet(AS3549) at AADS 1.38 (186 ann, 135 entries)
19. Genuity(AS3847) at AADS 1.37 (514 ann, 376 entries)
20. Cableol(AS5089) at Mae-East 1.25 (5 ann, 4 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3618
2. internetMCI (3561) at pb 774
3. BBNplanet (1) at mae-west 442
4. AGIS (4200) at mae-east 369
5. IBMGlobal (2685) at mae-east 221
6. AT&T (6478) at aads 190
7. Grid (6113) at pb 190
8. Digex (2548) at mae-west 167
9. INAP.net (5646) at mae-west 158
10. CAIS (3491) at aads 133
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT