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 AADS from conxion (AS4544) ASPATH=4544 1760 IGP
Reserved AS Numbers
-------------------
AS65515 at Mae-West from Digex (AS2548) ASPATH=2548 5415 5415 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 456476 + 75279 = 531755 BGP prefix updates
2. internetMCI (AS3561) at Mae-East 44483 + 5885 = 50368 BGP prefix updates
3. conxion (AS4544) at AADS 60 + 46771 = 46831 BGP prefix updates
4. USCyber (AS4136) at Mae-East 0 + 31370 = 31370 BGP prefix updates
5. internetMCI (AS3561) at PacBell 25759 + 2341 = 28100 BGP prefix updates
6. idc (AS4694) at Mae-West 7 + 19212 = 19219 BGP prefix updates
7. SPRINT (AS1239) at Mae-East 5737 + 11332 = 17069 BGP prefix updates
8. NetKonect (AS6716) at Mae-East 0 + 15858 = 15858 BGP prefix updates
9. AGIS (AS4200) at Mae-East 7324 + 2759 = 10083 BGP prefix updates
10. CAIS (AS3491) at AADS 6053 + 2069 = 8122 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. MIBX(AS6218) at PacBell 65.07 (1887 ann, 29 entries)
2. internetMCI(AS3561) at AADS 26.49 (456476 ann, 17233 entries)
3. OLEANE(AS2917) at Mae-East 10.70 (471 ann, 44 entries)
4. HLC(AS4565) at AADS 5.97 (394 ann, 66 entries)
5. CAIS(AS3491) at AADS 5.13 (6053 ann, 1180 entries)
6. IBMGlobal(AS2685) at AADS 4.30 (1882 ann, 438 entries)
7. AGIS(AS4200) at Mae-East 4.27 (7324 ann, 1716 entries)
8. Internex(AS2828) at AADS 4.02 (257 ann, 64 entries)
9. conxion(AS4544) at AADS 3.33 (60 ann, 18 entries)
10. VisiNet(AS6261) at Mae-East 3.13 (457 ann, 146 entries)
11. internetMCI(AS3561) at Mae-East 2.59 (44483 ann, 17204 entries)
12. Alpha(AS4550) at AADS 2.59 (106 ann, 41 entries)
13. netrail(AS4006) at Mae-East 2.25 (27 ann, 12 entries)
14. OurWorld(AS7594) at Paix 2.04 (263 ann, 129 entries)
15. Cableol(AS5089) at Mae-East 2.00 (8 ann, 4 entries)
16. WebSecure(AS6583) at AADS 2.00 (4 ann, 2 entries)
17. HLC(AS4565) at Paix 1.92 (127 ann, 66 entries)
18. Netcom(AS2551) at AADS 1.79 (561 ann, 314 entries)
19. Internex(AS2828) at Paix 1.68 (106 ann, 63 entries)
20. Primenet(AS3549) at AADS 1.67 (226 ann, 135 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3787
2. internetMCI (3561) at aads 775
3. BBNplanet (1) at mae-west 462
4. AGIS (4200) at mae-east 339
5. IBMGlobal (2685) at mae-east 222
6. Grid (6113) at pb 194
7. AT&T (6478) at pb 187
8. Digex (2548) at mae-west 173
9. INAP.net (5646) at aads 162
10. CAIS (3491) at aads 136
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT