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
http://www.merit.net/mail.archives/html/routing-problems/
Also see http://www.caida.org for more information about Internet statistics
collection research efforts.
Reserved Network and Host Announcements
---------------------------------------
166.48.225.248/30 at AADS from Merit (AS237) ASPATH=237 INCOMPLETE
209.95.130.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 INCOMPLETE
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 0 + 60805 = 60805 BGP prefix updates
2. CAIS (AS3491) at AADS 39153 + 2025 = 41178 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 25304 + 7714 = 33018 BGP prefix updates
4. USCyber (AS4136) at Mae-East 0 + 31798 = 31798 BGP prefix updates
5. GetNet (AS5784) at Mae-East 0 + 29535 = 29535 BGP prefix updates
6. AT&T (AS6478) at AADS 20501 + 813 = 21314 BGP prefix updates
7. Seastrom (AS3066) at Mae-East 0 + 20244 = 20244 BGP prefix updates
8. internetMCI (AS3561) at AADS 12370 + 6582 = 18952 BGP prefix updates
9. Netcom (AS2551) at AADS 12395 + 5889 = 18284 BGP prefix updates
10. Netcom (AS2551) at Mae-East 15612 + 2550 = 18162 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 123.10 (3570 ann, 29 entries)
2. Netcom(AS2551) at Mae-East 52.21 (15612 ann, 299 entries)
3. Netcom(AS2551) at AADS 41.59 (12395 ann, 298 entries)
4. IBMGlobal(AS2685) at AADS 33.41 (735 ann, 22 entries)
5. CAIS(AS3491) at AADS 33.12 (39153 ann, 1182 entries)
6. Cableol(AS5089) at Mae-East 14.00 (56 ann, 4 entries)
7. AT&T(AS6478) at AADS 9.78 (20501 ann, 2097 entries)
8. NetAxs(AS4969) at Mae-East 9.38 (2326 ann, 248 entries)
9. OLEANE(AS2917) at Mae-East 8.16 (351 ann, 43 entries)
10. HLC(AS4565) at AADS 8.14 (529 ann, 65 entries)
11. VisiNet(AS6261) at Mae-East 6.28 (1024 ann, 163 entries)
12. DREN(AS668) at Mae-East 4.54 (1081 ann, 238 entries)
13. HLC(AS4565) at Mae-East 4.46 (290 ann, 65 entries)
14. Internex(AS2828) at AADS 3.20 (208 ann, 65 entries)
15. Primenet(AS3549) at AADS 3.07 (418 ann, 136 entries)
16. AT&T(AS6478) at Mae-East 3.05 (6392 ann, 2096 entries)
17. Intermedia(AS6235) at Mae-East 2.79 (651 ann, 233 entries)
18. HLC(AS4565) at Paix 2.68 (174 ann, 65 entries)
19. OneCall(AS6402) at AADS 2.52 (227 ann, 90 entries)
20. DRA(AS1746) at AADS 2.17 (26 ann, 12 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3645
2. internetMCI (3561) at pb 823
3. BBNplanet (1) at mae-west 385
4. AGIS (4200) at mae-east 355
5. IBMGlobal (2685) at mae-west 236
6. CAIS (3491) at aads 197
7. Grid (6113) at mae-west 189
8. Digex (2548) at mae-west 168
9. INAP.net (5646) at aads 165
10. AT&T (6478) at aads 158
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT