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
---------------------------------------
136.159.206.204/32 at AADS from GoodNet (AS5696) ASPATH=5696 3463 3463 3463 1239 852 INCOMPLETE
195.12.165.0/29 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 INCOMPLETE
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 40080 + 12427 = 52507 BGP prefix updates
2. internetMCI (AS3561) at Mae-East 10468 + 2414 = 12882 BGP prefix updates
3. NetKonect (AS6716) at Mae-East 0 + 9623 = 9623 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 5782 + 2867 = 8649 BGP prefix updates
5. BBNplanet (AS1) at Mae-East 6389 + 227 = 6616 BGP prefix updates
6. USCyber (AS4136) at Mae-East 0 + 5695 = 5695 BGP prefix updates
7. GoodNet (AS5696) at AADS 2413 + 2274 = 4687 BGP prefix updates
8. CAIS (AS3491) at AADS 2723 + 1458 = 4181 BGP prefix updates
9. AT&T (AS6478) at AADS 2010 + 761 = 2771 BGP prefix updates
10. AGIS (AS4200) at Mae-East 2590 + 99 = 2689 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 1181.00 (1181 ann, 1 entries)
2. IBMGlobal(AS2685) at AADS 522.00 (1566 ann, 3 entries)
3. Cableol(AS5089) at Mae-East 12.00 (48 ann, 4 entries)
4. HLC(AS4565) at AADS 10.42 (698 ann, 67 entries)
5. u-net(AS5669) at Paix 7.00 (56 ann, 8 entries)
6. GoodNet(AS5696) at AADS 5.14 (2413 ann, 469 entries)
7. CAIS(AS3491) at AADS 3.28 (2723 ann, 831 entries)
8. HLC(AS4565) at Paix 3.18 (213 ann, 67 entries)
9. NWU(AS103) at AADS 2.65 (53 ann, 20 entries)
10. internetMCI(AS3561) at AADS 2.32 (40080 ann, 17280 entries)
11. Internex(AS2828) at AADS 2.25 (162 ann, 72 entries)
12. INS(AS6660) at Mae-East 1.72 (100 ann, 58 entries)
13. AGIS(AS4200) at Mae-East 1.48 (2590 ann, 1752 entries)
14. Xara(AS5413) at Mae-East 1.46 (83 ann, 57 entries)
15. ESnet(AS293) at AADS 1.39 (146 ann, 105 entries)
16. BBNplanet(AS1) at Mae-East 1.28 (6389 ann, 4987 entries)
17. IBMGlobal(AS2685) at Mae-East 1.10 (782 ann, 710 entries)
18. Genuity(AS3847) at Paix 1.10 (412 ann, 375 entries)
19. OneCall(AS6402) at AADS 1.00 (73 ann, 73 entries)
20. CableInet(AS5462) at Mae-East 0.97 (30 ann, 31 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3799
2. internetMCI (3561) at aads 889
3. BBNplanet (1) at mae-east 409
4. AGIS (4200) at mae-east 374
5. IBMGlobal (2685) at mae-east 218
6. Grid (6113) at mae-west 201
7. CAIS (3491) at aads 189
8. Digex (2548) at mae-west 188
9. AT&T (6478) at pb 180
10. INAP.net (5646) at mae-west 159
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT