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
---------------------------------------
192.198.129.128/27 at Mae-East from conxion (AS4544) ASPATH=4544 1760 IGP
192.198.129.128/27 at AADS from conxion (AS4544) ASPATH=4544 1760 IGP
205.181.249.35/32 at Mae-East from Intermedia (AS6235) ASPATH=6235 5651 6433 IGP
205.181.249.37/32 at Mae-East from Intermedia (AS6235) ASPATH=6235 5651 6433 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 5415 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 0 + 93259 = 93259 BGP prefix updates
2. USCyber (AS4136) at Mae-East 0 + 70540 = 70540 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 51197 + 14026 = 65223 BGP prefix updates
4. GetNet (AS5784) at Mae-East 0 + 47145 = 47145 BGP prefix updates
5. internetMCI (AS3561) at AADS 34511 + 12505 = 47016 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 32006 + 12603 = 44609 BGP prefix updates
7. ANS (AS1673) at Mae-East 20590 + 116 = 20706 BGP prefix updates
8. CompuServe (AS4183) at Mae-East 0 + 17024 = 17024 BGP prefix updates
9. telia (AS1299) at Mae-East 174 + 15554 = 15728 BGP prefix updates
10. BBNplanet (AS1) at Mae-East 9006 + 2484 = 11490 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 32.00 (128 ann, 4 entries)
2. Nacamar(AS3257) at Mae-East 13.89 (903 ann, 65 entries)
3. ANS(AS1673) at Mae-East 11.94 (20590 ann, 1724 entries)
4. HLC(AS4565) at AADS 8.62 (586 ann, 68 entries)
5. HLC(AS4565) at Mae-East 8.57 (583 ann, 68 entries)
6. InterAccess(AS3789) at AADS 7.38 (192 ann, 26 entries)
7. conxion(AS4544) at Mae-East 4.06 (69 ann, 17 entries)
8. EUnet(AS286) at Mae-East 3.75 (4270 ann, 1138 entries)
9. Intermedia(AS6235) at Mae-East 3.51 (822 ann, 234 entries)
10. IBMGlobal(AS2685) at AADS 3.45 (138 ann, 40 entries)
11. HLC(AS4565) at Paix 3.00 (204 ann, 68 entries)
12. Interpath(AS3407) at Mae-East 2.50 (80 ann, 32 entries)
13. SPRINT(AS1239) at Mae-East 2.38 (51197 ann, 21554 entries)
14. IXI(AS5418) at Mae-East 2.33 (7 ann, 3 entries)
15. Internex(AS2828) at Mae-East 2.27 (136 ann, 60 entries)
16. Internex(AS2828) at AADS 2.27 (136 ann, 60 entries)
17. ESnet(AS293) at Mae-East 2.17 (410 ann, 189 entries)
18. AT&T(AS6478) at AADS 2.05 (4135 ann, 2015 entries)
19. internetMCI(AS3561) at AADS 2.00 (34511 ann, 17277 entries)
20. Digex(AS2548) at Mae-East 1.86 (1547 ann, 832 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3574
2. internetMCI (3561) at aads 1008
3. BBNplanet (1) at mae-west 418
4. AGIS (4200) at mae-east 340
5. IBMGlobal (2685) at mae-east 221
6. Grid (6113) at pb 190
7. INAP.net (5646) at aads 164
8. CAIS (3491) at aads 163
9. AT&T (6478) at pb 162
10. Digex (2548) at mae-west 159
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT