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
---------------------------------------
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at Mae-West from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at PacBell from Grid (AS6113) ASPATH=6113 IGP
209.95.130.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 Incomplete
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. USCyber (AS4136) at Mae-East 0 + 138722 = 138722 BGP prefix updates
2. GetNet (AS5784) at Mae-East 0 + 138307 = 138307 BGP prefix updates
3. idc (AS4694) at Mae-West 4 + 129838 = 129842 BGP prefix updates
4. NetKonect (AS6716) at Mae-East 16 + 116377 = 116393 BGP prefix updates
5. SPRINT (AS1239) at Mae-East 67313 + 12876 = 80189 BGP prefix updates
6. BBNplanet (AS1) at Mae-East 33681 + 19499 = 53180 BGP prefix updates
7. internetMCI (AS3561) at Mae-East 32363 + 8971 = 41334 BGP prefix updates
8. CompuServe (AS4183) at Mae-East 55 + 27224 = 27279 BGP prefix updates
9. internetMCI (AS3561) at AADS 15600 + 8966 = 24566 BGP prefix updates
10. internetMCI (AS3561) at PacBell 15720 + 8634 = 24354 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. VisiNet(AS6261) at Mae-West 114.74 (6196 ann, 54 entries)
2. VisiNet(AS6261) at Mae-East 114.74 (6196 ann, 54 entries)
3. NetAxs(AS4969) at Mae-East 76.34 (7405 ann, 97 entries)
4. Digex(AS2548) at Mae-East 15.16 (12960 ann, 855 entries)
5. Digex(AS2548) at Mae-West 11.20 (9567 ann, 854 entries)
6. CableInet(AS5462) at Mae-West 9.48 (417 ann, 44 entries)
7. u-net(AS5669) at Mae-West 8.25 (66 ann, 8 entries)
8. InterAccess(AS3789) at AADS 7.60 (190 ann, 25 entries)
9. Priori(AS10303) at Mae-East 6.86 (144 ann, 21 entries)
10. BBNplanet(AS1) at Mae-East 6.77 (33681 ann, 4975 entries)
11. u-net(AS5669) at Paix 5.50 (44 ann, 8 entries)
12. Nacamar(AS3257) at Mae-West 5.06 (314 ann, 62 entries)
13. dxnet(AS3914) at Mae-West 5.00 (35 ann, 7 entries)
14. dxnet(AS3914) at Mae-East 4.71 (33 ann, 7 entries)
15. DRA(AS1746) at Mae-East 4.42 (53 ann, 12 entries)
16. DRA(AS1746) at Mae-West 4.25 (51 ann, 12 entries)
17. DRA(AS1746) at AADS 4.17 (50 ann, 12 entries)
18. AGIS(AS4200) at Mae-East 4.15 (7324 ann, 1763 entries)
19. Erols(AS6079) at Mae-East 3.84 (119 ann, 31 entries)
20. AIMnet(AS3763) at Mae-West 3.55 (167 ann, 47 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3642
2. internetMCI (3561) at aads 641
3. BBNplanet (1) at mae-west 389
4. AGIS (4200) at mae-east 297
5. Grid (6113) at pb 185
6. IBMGlobal (2685) at mae-east 184
7. AT&T (6478) at aads 171
8. Digex (2548) at mae-west 163
9. INAP.net (5646) at aads 156
10. CAIS (3491) at aads 144
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT