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
---------------------------------------
172.16/16 at AADS from INCnet (AS3857) ASPATH=3857 Incomplete
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.198.129.128/27 at Mae-West from conxion (AS4544) ASPATH=4544 1760 IGP
194.117.132.184/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
199.221.121.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1669 IGP
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
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 0 + 394732 = 394732 BGP prefix updates
2. GetNet (AS5784) at Mae-East 10 + 340131 = 340141 BGP prefix updates
3. idc (AS4694) at Mae-West 26 + 195896 = 195922 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 173516 + 21055 = 194571 BGP prefix updates
5. USCyber (AS4136) at Mae-East 0 + 181200 = 181200 BGP prefix updates
6. telia (AS1299) at Mae-East 107 + 67905 = 68012 BGP prefix updates
7. CAIS (AS3491) at Mae-West 40606 + 26053 = 66659 BGP prefix updates
8. internetMCI (AS3561) at AADS 45709 + 12532 = 58241 BGP prefix updates
9. CompuServe (AS4183) at Mae-East 231 + 54855 = 55086 BGP prefix updates
10. internetMCI (AS3561) at Mae-East 43049 + 10441 = 53490 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. NetAxs(AS4969) at Mae-East 79.77 (7498 ann, 94 entries)
2. CAIS(AS3491) at Mae-West 34.98 (40606 ann, 1161 entries)
3. ACSI(AS6467) at Mae-East 16.56 (2948 ann, 178 entries)
4. ACSI(AS6467) at Mae-West 15.23 (2711 ann, 178 entries)
5. Voicenet(AS3932) at Mae-East 15.08 (784 ann, 52 entries)
6. Netcom(AS2551) at Mae-East 12.98 (4128 ann, 318 entries)
7. Erols(AS6079) at Mae-East 12.14 (170 ann, 14 entries)
8. OLEANE(AS2917) at Mae-East 12.14 (522 ann, 43 entries)
9. Servint(AS7960) at Mae-East 8.62 (69 ann, 8 entries)
10. Interpath(AS3407) at Mae-East 8.56 (274 ann, 32 entries)
11. SPRINT(AS1239) at Mae-East 8.32 (173516 ann, 20843 entries)
12. ANS(AS1673) at Mae-East 8.05 (14253 ann, 1771 entries)
13. AGIS(AS4200) at Mae-East 7.27 (8751 ann, 1203 entries)
14. Nacamar(AS3257) at Mae-West 7.21 (440 ann, 61 entries)
15. EUnet(AS286) at Mae-East 7.07 (7908 ann, 1119 entries)
16. Dialnet(AS5552) at Mae-East 6.29 (572 ann, 91 entries)
17. Intermedia(AS6235) at Mae-East 6.16 (1484 ann, 241 entries)
18. WCG(AS7911) at PacBell 6.00 (6 ann, 1 entries)
19. BBNplanet(AS1) at Mae-East 5.73 (28480 ann, 4969 entries)
20. Cableol(AS5089) at Mae-East 5.50 (22 ann, 4 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3627
2. internetMCI (3561) at pb 621
3. BBNplanet (1) at mae-east 376
4. AGIS (4200) at mae-east 289
5. IBMGlobal (2685) at aads 205
6. Grid (6113) at mae-west 194
7. AT&T (6478) at aads 168
8. INAP.net (5646) at aads 158
9. CAIS (3491) at mae-west 154
10. NASA (297) at mae-west 142
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT