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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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 AADS from conxion (AS4544) ASPATH=4544 1760 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 252305 + 22212 = 274517 BGP prefix updates
2. AT&T (AS6478) at AADS 17927 + 591 = 18518 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 4956 + 1356 = 6312 BGP prefix updates
4. NetKonect (AS6716) at Mae-East 0 + 4692 = 4692 BGP prefix updates
5. idc (AS4694) at Mae-West 0 + 4230 = 4230 BGP prefix updates
6. CAIS (AS3491) at AADS 1365 + 1307 = 2672 BGP prefix updates
7. internetMCI (AS3561) at PacBell 2125 + 474 = 2599 BGP prefix updates
8. SPRINT (AS1239) at Mae-East 1801 + 658 = 2459 BGP prefix updates
9. ANS (AS1673) at Mae-East 51 + 1585 = 1636 BGP prefix updates
10. USCyber (AS4136) at Mae-East 0 + 1613 = 1613 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. internetMCI(AS3561) at AADS 14.45 (252305 ann, 17465 entries)
2. AT&T(AS6478) at AADS 7.34 (17927 ann, 2444 entries)
3. HLC(AS4565) at AADS 4.98 (309 ann, 62 entries)
4. Cableol(AS5089) at Mae-East 3.25 (13 ann, 4 entries)
5. EXODUS(AS3967) at AADS 3.25 (221 ann, 68 entries)
6. ThePlanet(AS5388) at Mae-East 2.90 (226 ann, 78 entries)
7. Internex(AS2828) at AADS 2.86 (212 ann, 74 entries)
8. OurWorld(AS7594) at Paix 2.68 (391 ann, 146 entries)
9. GoodNet(AS5696) at AADS 2.39 (1130 ann, 473 entries)
10. Genuity(AS3847) at AADS 2.38 (794 ann, 334 entries)
11. INCnet(AS3857) at AADS 2.10 (221 ann, 105 entries)
12. CAIS(AS3491) at AADS 1.86 (1365 ann, 735 entries)
13. conxion(AS4544) at AADS 1.83 (33 ann, 18 entries)
14. Alpha(AS4550) at AADS 1.67 (65 ann, 39 entries)
15. Above(AS6461) at Paix 1.63 (140 ann, 86 entries)
16. HLC(AS4565) at Paix 1.48 (92 ann, 62 entries)
17. InterAccess(AS3789) at AADS 1.46 (38 ann, 26 entries)
18. Netcom(AS2551) at AADS 1.18 (363 ann, 308 entries)
19. EXODUS(AS3967) at Paix 1.10 (65 ann, 59 entries)
20. Interpath(AS3407) at Mae-East 1.00 (33 ann, 33 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3691
2. internetMCI (3561) at aads 944
3. BBNplanet (1) at mae-west 450
4. AGIS (4200) at mae-east 362
5. IBMGlobal (2685) at mae-east 216
6. Grid (6113) at pb 195
7. AT&T (6478) at pb 187
8. Digex (2548) at mae-west 187
9. INAP.net (5646) at aads 170
10. CAIS (3491) at mae-west 170
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT