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
195.200.12.0/27 at Mae-East from Xara (AS5413) ASPATH=5413 5611 IGP
195.200.12.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5413 5611 5611 INCOMPLETE
195.200.12.32/29 at Mae-East from Xara (AS5413) ASPATH=5413 5611 IGP
195.200.12.32/29 at Mae-East from AGIS (AS4200) ASPATH=4200 5413 5611 5611 INCOMPLETE
Reserved AS Numbers
-------------------
AS65515 at Mae-East from Digex (AS2548) ASPATH=2548 5415 5415 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 51276 + 14602 = 65878 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 20575 = 20575 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 14569 + 3840 = 18409 BGP prefix updates
4. internetMCI (AS3561) at Mae-East 7680 + 2234 = 9914 BGP prefix updates
5. CAIS (AS3491) at AADS 4986 + 1968 = 6954 BGP prefix updates
6. internetMCI (AS3561) at PacBell 5153 + 716 = 5869 BGP prefix updates
7. WNA (AS2914) at Paix 4273 + 1164 = 5437 BGP prefix updates
8. AT&T (AS6478) at AADS 3590 + 1228 = 4818 BGP prefix updates
9. USCyber (AS4136) at Mae-East 0 + 4814 = 4814 BGP prefix updates
10. NetAxs (AS4969) at Mae-East 2769 + 1605 = 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 923.00 (2769 ann, 3 entries)
2. OurWorld(AS7594) at Paix 860.00 (860 ann, 1 entries)
3. NetAxs(AS4969) at Mae-East 13.85 (2769 ann, 200 entries)
4. HLC(AS4565) at AADS 8.97 (601 ann, 67 entries)
5. CAIS(AS3491) at AADS 5.16 (4986 ann, 967 entries)
6. Internex(AS2828) at AADS 5.14 (365 ann, 71 entries)
7. WNA(AS2914) at Paix 3.62 (4273 ann, 1179 entries)
8. VisiNet(AS6261) at Mae-East 3.34 (468 ann, 140 entries)
9. internetMCI(AS3561) at AADS 2.97 (51276 ann, 17273 entries)
10. HLC(AS4565) at Paix 2.82 (189 ann, 67 entries)
11. Internex(AS2828) at Paix 2.27 (159 ann, 70 entries)
12. u-net(AS5669) at Paix 2.25 (18 ann, 8 entries)
13. Above(AS6461) at Paix 1.87 (170 ann, 91 entries)
14. NWU(AS103) at AADS 1.80 (36 ann, 20 entries)
15. AT&T(AS6478) at AADS 1.63 (3590 ann, 2201 entries)
16. HLC(AS4565) at Mae-East 1.49 (67 ann, 45 entries)
17. Alpha(AS4550) at AADS 1.23 (49 ann, 40 entries)
18. INSnet(AS5378) at Mae-East 1.16 (64 ann, 55 entries)
19. MIBX(AS6218) at PacBell 1.14 (32 ann, 28 entries)
20. InterAccess(AS3789) at AADS 1.12 (28 ann, 25 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 2877
2. internetMCI (3561) at aads 903
3. BBNplanet (1) at mae-east 322
4. Grid (6113) at pb 194
5. CAIS (3491) at aads 194
6. AGIS (4200) at mae-east 187
7. AT&T (6478) at pb 184
8. INAP.net (5646) at aads 172
9. IBMGlobal (2685) at mae-east 133
10. DREN (668) at mae-east 109
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT