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
---------------------------------------
192.17.238.128/27 at AADS from UIUC (AS38) ASPATH=38 IGP
206.155.248.208/32 at Mae-West from GoodNet (AS5696) ASPATH=5696 10818 INCOMPLETE
206.155.248.210/32 at Mae-West from GoodNet (AS5696) ASPATH=5696 10818 INCOMPLETE
209.98.189.124/30 at AADS from GoodNet (AS5696) ASPATH=5696 INCOMPLETE
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 63345 + 20632 = 83977 BGP prefix updates
2. MainStreet (AS3720) at Mae-West 0 + 15433 = 15433 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 7015 + 1342 = 8357 BGP prefix updates
4. idc (AS4694) at Mae-West 0 + 7796 = 7796 BGP prefix updates
5. NetKonect (AS6716) at Mae-East 0 + 7069 = 7069 BGP prefix updates
6. AT&T (AS6478) at AADS 4350 + 530 = 4880 BGP prefix updates
7. internetMCI (AS3561) at Mae-East 3079 + 972 = 4051 BGP prefix updates
8. CAIS (AS3491) at AADS 2134 + 1338 = 3472 BGP prefix updates
9. GoodNet (AS5696) at AADS 2025 + 583 = 2608 BGP prefix updates
10. internetMCI (AS3561) at PacBell 2002 + 521 = 2523 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. OurWorld(AS7594) at Paix 390.00 (390 ann, 1 entries)
2. HLC(AS4565) at AADS 8.11 (519 ann, 64 entries)
3. GoodNet(AS5696) at AADS 4.43 (2025 ann, 457 entries)
4. Internex(AS2828) at AADS 4.38 (311 ann, 71 entries)
5. internetMCI(AS3561) at AADS 3.62 (63345 ann, 17485 entries)
6. NetAxs(AS4969) at Mae-East 3.61 (924 ann, 256 entries)
7. INS(AS6660) at Mae-East 2.78 (89 ann, 32 entries)
8. Primenet(AS3549) at AADS 2.35 (301 ann, 128 entries)
9. HLC(AS4565) at Paix 2.20 (141 ann, 64 entries)
10. CAIS(AS3491) at AADS 2.05 (2134 ann, 1039 entries)
11. WebSecure(AS6583) at AADS 2.00 (4 ann, 2 entries)
12. AT&T(AS6478) at AADS 1.82 (4350 ann, 2386 entries)
13. ThePlanet(AS5388) at Mae-East 1.75 (140 ann, 80 entries)
14. Netcom(AS2551) at AADS 1.65 (514 ann, 311 entries)
15. Intermedia(AS6235) at Mae-East 1.34 (286 ann, 214 entries)
16. Internex(AS2828) at Paix 1.31 (92 ann, 70 entries)
17. IOS(AS5000) at AADS 1.31 (34 ann, 26 entries)
18. UIUC(AS38) at AADS 1.14 (8 ann, 7 entries)
19. INSnet(AS5378) at Mae-East 0.96 (53 ann, 55 entries)
20. Digex(AS2548) at Mae-East 0.90 (814 ann, 908 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 4048
2. internetMCI (3561) at pb 973
3. BBNplanet (1) at mae-east 412
4. AGIS (4200) at mae-east 361
5. IBMGlobal (2685) at mae-west 229
6. CAIS (3491) at aads 205
7. Grid (6113) at pb 192
8. AT&T (6478) at pb 185
9. Digex (2548) at mae-west 181
10. INAP.net (5646) at aads 171
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT