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
---------------------------------------
No routing problems were detected
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 49510 + 16226 = 65736 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 9318 = 9318 BGP prefix updates
3. USCyber (AS4136) at Mae-East 0 + 6944 = 6944 BGP prefix updates
4. AT&T (AS6478) at AADS 4822 + 1744 = 6566 BGP prefix updates
5. idc (AS4694) at Mae-West 0 + 6280 = 6280 BGP prefix updates
6. BBNplanet (AS1) at Mae-West 5676 + 589 = 6265 BGP prefix updates
7. CAIS (AS3491) at AADS 4147 + 1956 = 6103 BGP prefix updates
8. BBNplanet (AS1) at Mae-East 862 + 3800 = 4662 BGP prefix updates
9. SPRINT (AS1239) at Mae-East 3129 + 1385 = 4514 BGP prefix updates
10. internetMCI (AS3561) at Mae-East 2346 + 895 = 3241 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. OurWorld(AS7594) at Paix 14.00 (14 ann, 1 entries)
2. HLC(AS4565) at AADS 8.08 (590 ann, 73 entries)
3. Internex(AS2828) at AADS 5.82 (413 ann, 71 entries)
4. EXODUS(AS3967) at AADS 4.54 (508 ann, 112 entries)
5. CAIS(AS3491) at AADS 3.72 (4147 ann, 1116 entries)
6. OLEANE(AS2917) at Mae-East 3.60 (151 ann, 42 entries)
7. WebSecure(AS6583) at AADS 3.00 (6 ann, 2 entries)
8. internetMCI(AS3561) at AADS 2.81 (49510 ann, 17631 entries)
9. HLC(AS4565) at Paix 2.78 (203 ann, 73 entries)
10. Internex(AS2828) at Paix 2.34 (164 ann, 70 entries)
11. AT&T(AS6478) at AADS 2.21 (4822 ann, 2184 entries)
12. EXODUS(AS3967) at Paix 2.05 (211 ann, 103 entries)
13. ThePlanet(AS5388) at Mae-East 1.85 (146 ann, 79 entries)
14. Primenet(AS3549) at AADS 1.11 (142 ann, 128 entries)
15. BBNplanet(AS1) at Mae-West 1.04 (5676 ann, 5463 entries)
16. Genuity(AS3847) at AADS 1.00 (330 ann, 331 entries)
17. INS(AS6660) at Mae-East 0.94 (30 ann, 32 entries)
18. Merit(AS237) at AADS 0.90 (97 ann, 108 entries)
19. InterAccess(AS3789) at AADS 0.88 (23 ann, 26 entries)
20. Netcom(AS2551) at AADS 0.74 (231 ann, 311 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3652
2. BBNplanet (1) at mae-east 1173
3. internetMCI (3561) at pb 985
4. AGIS (4200) at mae-east 358
5. IBMGlobal (2685) at mae-west 218
6. CAIS (3491) at aads 197
7. Grid (6113) at pb 194
8. Digex (2548) at mae-west 191
9. AT&T (6478) at aads 180
10. INAP.net (5646) at aads 170
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT