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
---------------------------------------
192.168.0.0/24 at Mae-East from VisiNet (AS6261) ASPATH=6261 INCOMPLETE
192.168.200.0/24 at Mae-East from VisiNet (AS6261) ASPATH=6261 INCOMPLETE
192.17.238.128/27 at AADS from UIUC (AS38) ASPATH=38 IGP
207.26.64.80/28 at Mae-East from ANS (AS1673) ASPATH=1673 1324 IGP
Reserved AS Numbers
-------------------
AS64810 at Mae-East from SPRINT (AS1239) ASPATH=1239 685 4134 64810 INCOMPLETE
AS65010 at Mae-East from ANS (AS1673) ASPATH=1673
AS64930 at Mae-East from SPRINT (AS1239) ASPATH=1239 685 4134 4134 4134 64930 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. SPRINT (AS1239) at Mae-East 39962 + 14802 = 54764 BGP prefix updates
2. internetMCI (AS3561) at AADS 43357 + 9474 = 52831 BGP prefix updates
3. internetMCI (AS3561) at PacBell 26481 + 12099 = 38580 BGP prefix updates
4. internetMCI (AS3561) at Mae-East 24300 + 9521 = 33821 BGP prefix updates
5. MainStreet (AS3720) at Mae-West 4 + 31295 = 31299 BGP prefix updates
6. AGIS (AS4200) at Mae-East 8825 + 6402 = 15227 BGP prefix updates
7. CAIS (AS3491) at AADS 7412 + 4884 = 12296 BGP prefix updates
8. CAIS (AS3491) at Mae-East 6837 + 5160 = 11997 BGP prefix updates
9. CAIS (AS3491) at Mae-West 6219 + 5552 = 11771 BGP prefix updates
10. WNA (AS2914) at Mae-East 7255 + 3983 = 11238 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. Cableol(AS5089) at Mae-East 122.75 (491 ann, 4 entries)
2. u-net(AS5669) at Mae-West 44.50 (356 ann, 8 entries)
3. AIMnet(AS3763) at Mae-West 39.04 (1991 ann, 51 entries)
4. VisiNet(AS6261) at Mae-East 35.04 (5851 ann, 167 entries)
5. u-net(AS5669) at Paix 19.75 (158 ann, 8 entries)
6. highway1(AS7922) at Mae-West 11.88 (95 ann, 8 entries)
7. highway1(AS7922) at Mae-East 10.75 (86 ann, 8 entries)
8. HLC(AS4565) at AADS 9.04 (651 ann, 72 entries)
9. HLC(AS4565) at Mae-East 8.42 (606 ann, 72 entries)
10. HLC(AS4565) at Mae-West 8.19 (590 ann, 72 entries)
11. EXODUS(AS3967) at PacBell 6.93 (825 ann, 119 entries)
12. IBMGlobal(AS2685) at AADS 6.62 (4849 ann, 733 entries)
13. CAIS(AS3491) at AADS 6.30 (7412 ann, 1177 entries)
14. WNA(AS2914) at Mae-East 5.90 (7255 ann, 1230 entries)
15. FiberNet(AS6259) at Mae-East 5.74 (155 ann, 27 entries)
16. Internex(AS2828) at AADS 5.60 (454 ann, 81 entries)
17. FiberNet(AS6259) at Mae-West 5.50 (154 ann, 28 entries)
18. CAIS(AS3491) at Mae-West 5.38 (6219 ann, 1156 entries)
19. IBMGlobal(AS2685) at Mae-East 5.28 (4316 ann, 817 entries)
20. AGIS(AS4200) at Mae-East 4.79 (8825 ann, 1843 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3859
2. internetMCI (3561) at pb 911
3. BBNplanet (1) at mae-west 406
4. AGIS (4200) at mae-east 377
5. IBMGlobal (2685) at mae-east 274
6. Grid (6113) at mae-west 202
7. Digex (2548) at mae-west 194
8. AT&T (6478) at aads 170
9. CAIS (3491) at mae-west 156
10. INAP.net (5646) at aads 145
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT