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
---------------------------------------
61.8.0.0/19 at AADS from IBMGlobal (AS2685) ASPATH=2685 5673 7657 7543 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 35875 + 16732 = 52607 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 11064 = 11064 BGP prefix updates
3. idc (AS4694) at Mae-West 1 + 6078 = 6079 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 4873 + 1184 = 6057 BGP prefix updates
5. internetMCI (AS3561) at Mae-East 3732 + 1614 = 5346 BGP prefix updates
6. AT&T (AS6478) at AADS 3178 + 917 = 4095 BGP prefix updates
7. CAIS (AS3491) at AADS 2458 + 1316 = 3774 BGP prefix updates
8. GoodNet (AS5696) at AADS 1209 + 860 = 2069 BGP prefix updates
9. Genuity (AS3847) at AADS 959 + 954 = 1913 BGP prefix updates
10. WNA (AS2914) at Paix 1332 + 570 = 1902 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. HLC(AS4565) at AADS 6.32 (379 ann, 60 entries)
2. Internex(AS2828) at AADS 3.55 (263 ann, 74 entries)
3. Genuity(AS3847) at AADS 2.83 (959 ann, 339 entries)
4. EXODUS(AS3967) at Paix 2.31 (247 ann, 107 entries)
5. Alpha(AS4550) at AADS 2.26 (88 ann, 39 entries)
6. HLC(AS4565) at Paix 2.20 (132 ann, 60 entries)
7. CAIS(AS3491) at AADS 2.14 (2458 ann, 1146 entries)
8. internetMCI(AS3561) at AADS 2.05 (35875 ann, 17463 entries)
9. GoodNet(AS5696) at AADS 1.99 (1209 ann, 609 entries)
10. highway1(AS7922) at Mae-East 1.62 (13 ann, 8 entries)
11. AT&T(AS6478) at AADS 1.33 (3178 ann, 2396 entries)
12. InterAccess(AS3789) at AADS 1.31 (34 ann, 26 entries)
13. WNA(AS2914) at Paix 1.16 (1332 ann, 1145 entries)
14. highway1(AS7922) at Mae-West 1.12 (9 ann, 8 entries)
15. Nacamar(AS3257) at Mae-East 1.00 (29 ann, 29 entries)
16. Xara(AS5413) at Mae-East 0.98 (59 ann, 60 entries)
17. Genuity(AS3847) at Paix 0.89 (301 ann, 339 entries)
18. IOS(AS5000) at AADS 0.81 (21 ann, 26 entries)
19. HLC(AS4565) at Mae-East 0.80 (48 ann, 60 entries)
20. Internex(AS2828) at Paix 0.73 (53 ann, 73 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3766
2. internetMCI (3561) at pb 945
3. BBNplanet (1) at mae-west 435
4. AGIS (4200) at mae-east 376
5. IBMGlobal (2685) at mae-west 232
6. Grid (6113) at pb 201
7. Digex (2548) at mae-west 191
8. AT&T (6478) at pb 187
9. CAIS (3491) at aads 175
10. INAP.net (5646) at aads 171
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT