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
---------------------------------------
194.117.132.128/30 at Mae-East from CableInet (AS5462) ASPATH=5462 6676 IGP
194.117.132.172/30 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
209.95.130.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 INCOMPLETE
Reserved AS Numbers
-------------------
AS65515 at Mae-East from Digex (AS2548) ASPATH=2548 5415 5415 65515 8207 IGP
AS65515 at Mae-West from Digex (AS2548) ASPATH=2548 5415 5415 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 16 + 204781 = 204797 BGP prefix updates
2. USCyber (AS4136) at Mae-East 0 + 68380 = 68380 BGP prefix updates
3. GetNet (AS5784) at Mae-East 0 + 68224 = 68224 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 41952 + 14317 = 56269 BGP prefix updates
5. internetMCI (AS3561) at AADS 19492 + 8712 = 28204 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 17157 + 8183 = 25340 BGP prefix updates
7. telia (AS1299) at Mae-East 331 + 19914 = 20245 BGP prefix updates
8. CompuServe (AS4183) at Mae-East 27 + 11964 = 11991 BGP prefix updates
9. INAP.net (AS5646) at Mae-East 4451 + 3558 = 8009 BGP prefix updates
10. BBNplanet (AS1) at Mae-East 4569 + 1756 = 6325 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. Cableol(AS5089) at Mae-East 42.00 (168 ann, 4 entries)
2. Pilot(AS3563) at Paix 17.44 (1308 ann, 75 entries)
3. CableInet(AS5462) at Mae-East 10.24 (379 ann, 37 entries)
4. HLC(AS4565) at AADS 9.85 (640 ann, 65 entries)
5. HLC(AS4565) at Mae-East 9.46 (615 ann, 65 entries)
6. InterAccess(AS3789) at AADS 5.77 (150 ann, 26 entries)
7. DREN(AS668) at Mae-East 4.86 (1113 ann, 229 entries)
8. IBMGlobal(AS2685) at AADS 4.65 (2272 ann, 489 entries)
9. NetAxs(AS4969) at Mae-East 3.79 (716 ann, 189 entries)
10. OLEANE(AS2917) at Mae-East 3.12 (128 ann, 41 entries)
11. INAP.net(AS5646) at Mae-East 2.65 (4451 ann, 1681 entries)
12. HLC(AS4565) at Paix 2.63 (171 ann, 65 entries)
13. Internex(AS2828) at Mae-East 2.48 (149 ann, 60 entries)
14. Internex(AS2828) at AADS 2.43 (146 ann, 60 entries)
15. AT&T(AS6478) at Mae-East 2.33 (4730 ann, 2030 entries)
16. EXODUS(AS3967) at AADS 2.23 (227 ann, 102 entries)
17. EXODUS(AS3967) at Mae-East 2.18 (222 ann, 102 entries)
18. ESnet(AS293) at Mae-East 2.14 (408 ann, 191 entries)
19. CableInet(AS5462) at Mae-West 1.97 (65 ann, 33 entries)
20. SPRINT(AS1239) at Mae-East 1.97 (41952 ann, 21316 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3514
2. internetMCI (3561) at mae-east 813
3. BBNplanet (1) at mae-west 390
4. AGIS (4200) at mae-east 377
5. IBMGlobal (2685) at mae-east 227
6. Grid (6113) at mae-west 196
7. CAIS (3491) at aads 182
8. NASA (297) at mae-west 169
9. Digex (2548) at mae-west 158
10. INAP.net (5646) at mae-west 158
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT