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
193.235.137.16/28 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
193.235.137.32/28 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
194.117.132.180/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.180/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.184/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.184/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.188/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.188/30 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.224/27 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.224/27 at Mae-West from CableInet (AS5462) ASPATH=5462 6676 IGP
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP
Reserved AS Numbers
-------------------
AS65515 at Mae-East from Digex (AS2548) ASPATH=2548 5415 65515 8207 IGP
AS65515 at Mae-West from Digex (AS2548) ASPATH=2548 5415 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. idc (AS4694) at Mae-West 98 + 205601 = 205699 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 96750 = 96750 BGP prefix updates
3. USCyber (AS4136) at Mae-East 0 + 87931 = 87931 BGP prefix updates
4. GetNet (AS5784) at Mae-East 0 + 87898 = 87898 BGP prefix updates
5. CompuServe (AS4183) at Mae-East 10 + 72111 = 72121 BGP prefix updates
6. internetMCI (AS3561) at AADS 50691 + 20940 = 71631 BGP prefix updates
7. SPRINT (AS1239) at Mae-East 54558 + 15405 = 69963 BGP prefix updates
8. internetMCI (AS3561) at Mae-East 40496 + 15246 = 55742 BGP prefix updates
9. Interpath (AS3407) at Mae-East 69 + 45417 = 45486 BGP prefix updates
10. CAIS (AS3491) at Mae-West 27314 + 9452 = 36766 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. CAIS(AS3491) at Mae-West 38.91 (27314 ann, 702 entries)
2. WebSecure(AS6583) at Mae-East 15.00 (30 ann, 2 entries)
3. HLC(AS4565) at Mae-West 14.72 (986 ann, 67 entries)
4. HLC(AS4565) at AADS 14.44 (982 ann, 68 entries)
5. HLC(AS4565) at Mae-East 14.38 (978 ann, 68 entries)
6. WebSecure(AS6583) at AADS 12.50 (25 ann, 2 entries)
7. WebSecure(AS6583) at Mae-West 12.00 (24 ann, 2 entries)
8. OLEANE(AS2917) at Mae-East 11.78 (483 ann, 41 entries)
9. Intermedia(AS6235) at Mae-East 11.51 (2854 ann, 248 entries)
10. CWIX(AS5683) at Mae-West 9.59 (12348 ann, 1288 entries)
11. AGIS(AS4200) at Mae-East 8.25 (7895 ann, 957 entries)
12. ICI(AS6561) at Mae-West 8.00 (120 ann, 15 entries)
13. ThePlanet(AS5388) at Mae-East 7.33 (264 ann, 36 entries)
14. Nacamar(AS3257) at Mae-West 5.67 (295 ann, 52 entries)
15. CWIX(AS5683) at Mae-West 5.58 (7184 ann, 1288 entries)
16. CableInet(AS5462) at Mae-West 5.18 (228 ann, 44 entries)
17. EXODUS(AS3967) at Mae-East 4.70 (249 ann, 53 entries)
18. ThePlanet(AS5388) at Mae-West 4.59 (156 ann, 34 entries)
19. Nacamar(AS3257) at Mae-East 4.20 (252 ann, 60 entries)
20. EXODUS(AS3967) at AADS 4.07 (285 ann, 70 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3584
2. internetMCI (3561) at mae-east 616
3. INAP.net (5646) at aads 386
4. BBNplanet (1) at mae-east 372
5. AGIS (4200) at mae-east 271
6. AT&T (6478) at pb 197
7. IBMGlobal (2685) at aads 193
8. Grid (6113) at pb 173
9. CWIX (5683) at mae-west 170
10. Digex (2548) at mae-west 160
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT