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
207.26.64.80/28 at Mae-East from ANS (AS1673) ASPATH=1673 1324 IGP
39.160.137.0/24 at Mae-East from Genuity (AS3847) ASPATH=3847 5413 5378 701 174 IGP
39.160.137.0/24 at Mae-West from Genuity (AS3847) ASPATH=3847 5413 5378 701 174 IGP
39.160.137.0/24 at AADS from Genuity (AS3847) ASPATH=3847 5413 5378 701 174 IGP
39.160.137.0/24 at Paix from Genuity (AS3847) ASPATH=3847 5413 5378 174 IGP
39.163.0.0/24 at AADS from Genuity (AS3847) ASPATH=3847 5413 5378 701 174 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. internetMCI (AS3561) at AADS 73032 + 17715 = 90747 BGP prefix updates
2. idc (AS4694) at Mae-West 1 + 39358 = 39359 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 3860 + 11195 = 15055 BGP prefix updates
4. AGIS (AS4200) at Mae-East 4853 + 3992 = 8845 BGP prefix updates
5. NetKonect (AS6716) at Mae-East 0 + 8689 = 8689 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 6959 + 1296 = 8255 BGP prefix updates
7. Genuity (AS3847) at AADS 4900 + 2896 = 7796 BGP prefix updates
8. MIBX (AS6218) at PacBell 3705 + 3446 = 7151 BGP prefix updates
9. CAIS (AS3491) at AADS 4864 + 1811 = 6675 BGP prefix updates
10. internetMCI (AS3561) at PacBell 5227 + 922 = 6149 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 135.93 (2039 ann, 15 entries)
2. MIBX(AS6218) at PacBell 29.17 (3705 ann, 127 entries)
3. OLEANE(AS2917) at Mae-East 19.19 (710 ann, 37 entries)
4. Genuity(AS3847) at AADS 7.68 (4900 ann, 638 entries)
5. u-net(AS5669) at Paix 6.00 (48 ann, 8 entries)
6. Internex(AS2828) at AADS 5.06 (324 ann, 64 entries)
7. internetMCI(AS3561) at AADS 4.20 (73032 ann, 17370 entries)
8. CAIS(AS3491) at AADS 4.18 (4864 ann, 1165 entries)
9. HLC(AS4565) at AADS 3.97 (266 ann, 67 entries)
10. AGIS(AS4200) at Mae-East 2.83 (4853 ann, 1712 entries)
11. UIC(AS6200) at AADS 2.67 (8 ann, 3 entries)
12. WebSecure(AS6583) at AADS 2.50 (5 ann, 2 entries)
13. IBMGlobal(AS2685) at AADS 2.44 (990 ann, 405 entries)
14. Netcom(AS2551) at AADS 2.26 (704 ann, 311 entries)
15. EXODUS(AS3967) at Paix 2.22 (229 ann, 103 entries)
16. DISC(AS7170) at Mae-East 2.01 (225 ann, 112 entries)
17. Genuity(AS3847) at Paix 1.93 (1600 ann, 829 entries)
18. Internex(AS2828) at Paix 1.75 (110 ann, 63 entries)
19. Alpha(AS4550) at AADS 1.29 (53 ann, 41 entries)
20. conxion(AS4544) at AADS 1.22 (22 ann, 18 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3759
2. internetMCI (3561) at aads 788
3. BBNplanet (1) at mae-west 440
4. AGIS (4200) at mae-east 367
5. IBMGlobal (2685) at mae-west 219
6. Grid (6113) at pb 195
7. AT&T (6478) at pb 190
8. Genuity (3847) at mae-east 175
9. Digex (2548) at mae-west 171
10. INAP.net (5646) at aads 163
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT