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
---------------------------------------
195.12.165.0/29 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 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. internetMCI (AS3561) at AADS 59591 + 12555 = 72146 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 24365 = 24365 BGP prefix updates
3. AT&T (AS6478) at AADS 16161 + 3877 = 20038 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 12330 + 5855 = 18185 BGP prefix updates
5. CAIS (AS3491) at AADS 4984 + 2807 = 7791 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 4167 + 1819 = 5986 BGP prefix updates
7. BBNplanet (AS1) at Mae-East 4643 + 1120 = 5763 BGP prefix updates
8. idc (AS4694) at Mae-West 0 + 4781 = 4781 BGP prefix updates
9. CompuServe (AS4183) at Mae-East 2 + 4602 = 4604 BGP prefix updates
10. AGIS (AS4200) at Mae-East 4096 + 278 = 4374 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. IBMGlobal(AS2685) at AADS 311.67 (935 ann, 3 entries)
2. OurWorld(AS7594) at Paix 59.39 (1069 ann, 18 entries)
3. Internex(AS2828) at AADS 10.03 (702 ann, 70 entries)
4. AT&T(AS6478) at AADS 9.55 (16161 ann, 1693 entries)
5. NetAxs(AS4969) at Mae-East 5.35 (1354 ann, 253 entries)
6. CAIS(AS3491) at AADS 4.95 (4984 ann, 1007 entries)
7. HLC(AS4565) at AADS 4.66 (312 ann, 67 entries)
8. OarNet(AS600) at AADS 4.54 (859 ann, 189 entries)
9. Nacamar(AS3257) at Mae-East 4.12 (70 ann, 17 entries)
10. internetMCI(AS3561) at AADS 3.49 (59591 ann, 17085 entries)
11. Internex(AS2828) at Paix 3.23 (223 ann, 69 entries)
12. AGIS(AS4200) at Mae-East 2.40 (4096 ann, 1706 entries)
13. Grid(AS6113) at Mae-East 2.29 (2756 ann, 1204 entries)
14. EXODUS(AS3967) at AADS 2.09 (232 ann, 111 entries)
15. GoodNet(AS5696) at AADS 1.93 (907 ann, 470 entries)
16. HLC(AS4565) at Paix 1.67 (112 ann, 67 entries)
17. WNA(AS2914) at Paix 1.67 (1959 ann, 1174 entries)
18. WireHub(AS5496) at Mae-East 1.50 (21 ann, 14 entries)
19. Internex(AS2828) at Mae-East 1.38 (65 ann, 47 entries)
20. InterAccess(AS3789) at AADS 1.35 (35 ann, 26 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3959
2. internetMCI (3561) at pb 996
3. BBNplanet (1) at mae-west 431
4. AGIS (4200) at mae-east 374
5. IBMGlobal (2685) at mae-east 227
6. Digex (2548) at mae-west 194
7. Grid (6113) at mae-west 194
8. CAIS (3491) at aads 177
9. INAP.net (5646) at aads 172
10. AT&T (6478) at pb 162
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT