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
---------------------------------------
131.103.1.45/32 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
147.186.242.240/28 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
165.117.1.124/32 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.1.15/32 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.50.120/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.50.124/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.50.216/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.50.236/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.50.248/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.50.250/32 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.50.44/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.50.68/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.50.76/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.51.20/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.52.104/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.52.232/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.52.236/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 IGP
165.117.53.176/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.53.64/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
165.117.53.68/30 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 2548 2548 2548 2548 INCOMPLETE
192.138.110.0/27 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
192.148.140.96/29 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 8297 6453 1221 1221 1221 1221 INCOMPLETE
192.176.210.96/27 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
192.36.156.64/27 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
193.216.252.93/32 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
193.25.254.128/27 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
193.44.6.192/29 at Mae-East from NetKonect (AS6716) ASPATH=6716 3328 6889 6765 1257 IGP
195.101.148.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.128/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.160/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.224/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.32/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.64/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.96/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.128/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.160/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.224/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.32/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.64/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.96/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
198.80.116.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1670 IGP
200.30.42.16/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.64/29 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.72/29 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.80/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
206.84.149.20/32 at Mae-East from AGIS (AS4200) ASPATH=4200 IGP
207.26.64.80/28 at Mae-East from ANS (AS1673) ASPATH=1673 1324 IGP
209.88.14.0/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.14.128/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.14.240/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.14.64/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.15.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
Reserved AS Numbers
-------------------
AS64600 at Mae-East from NASA (AS297) ASPATH=297 64600 IGP
AS65000 at Mae-East from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
AS65350 at Mae-East from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 4802 INCOMPLETE
AS64600 at Mae-West from NASA (AS297) ASPATH=297 64600 IGP
AS65350 at Mae-West from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 4802 INCOMPLETE
AS65000 at AADS from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
AS65350 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 4802 INCOMPLETE
AS65000 at PacBell from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. SPRINT (AS1239) at Mae-East 176603 + 47790 = 224393 BGP prefix updates
2. INAP.net (AS5646) at Mae-East 88390 + 87509 = 175899 BGP prefix updates
3. INAP.net (AS5646) at Mae-West 88171 + 87565 = 175736 BGP prefix updates
4. INAP.net (AS5646) at AADS 88223 + 87368 = 175591 BGP prefix updates
5. internetMCI (AS3561) at AADS 116403 + 15048 = 131451 BGP prefix updates
6. NetKonect (AS6716) at Mae-East 113695 + 5754 = 119449 BGP prefix updates
7. Nacamar (AS3257) at Mae-West 45307 + 45205 = 90512 BGP prefix updates
8. internetMCI (AS3561) at Mae-East 43075 + 16187 = 59262 BGP prefix updates
9. internetMCI (AS3561) at PacBell 40514 + 15058 = 55572 BGP prefix updates
10. Above (AS6461) at AADS 1010 + 50386 = 51396 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. Nacamar(AS3257) at Mae-West 2559.50 (15357 ann, 6 entries)
2. IBMGlobal(AS2685) at AADS 14.36 (316 ann, 22 entries)
3. NetKonect(AS6716) at Mae-East 12.21 (24665 ann, 2020 entries)
4. AIMnet(AS3763) at Mae-West 9.10 (473 ann, 52 entries)
5. u-net(AS5669) at Mae-West 8.22 (74 ann, 9 entries)
6. Interpath(AS3407) at Mae-East 8.12 (211 ann, 26 entries)
7. IPF(AS5409) at Mae-East 7.57 (212 ann, 28 entries)
8. OurWorld(AS7594) at Mae-West 6.80 (1264 ann, 186 entries)
9. SPRINT(AS1239) at Mae-East 5.80 (124724 ann, 21513 entries)
10. VisiNet(AS6261) at Mae-West 4.40 (1011 ann, 230 entries)
11. Nacamar(AS3257) at Mae-East 3.94 (272 ann, 69 entries)
12. VisiNet(AS6261) at Mae-East 3.93 (907 ann, 231 entries)
13. highway1(AS7922) at Mae-West 3.89 (35 ann, 9 entries)
14. highway1(AS7922) at Mae-East 3.89 (35 ann, 9 entries)
15. INAP.net(AS5646) at AADS 3.53 (8129 ann, 2303 entries)
16. INAP.net(AS5646) at Mae-East 3.49 (8127 ann, 2329 entries)
17. INAP.net(AS5646) at Mae-West 3.49 (8124 ann, 2329 entries)
18. ICI(AS6561) at Mae-West 2.93 (44 ann, 15 entries)
19. internetMCI(AS3561) at AADS 2.76 (48853 ann, 17709 entries)
20. OLEANE(AS2917) at Mae-East 2.73 (120 ann, 44 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 4198
2. internetMCI (3561) at aads 762
3. BBNplanet (1) at mae-west 430
4. Grid (6113) at pb 334
5. AGIS (4200) at mae-east 292
6. IBMGlobal (2685) at mae-west 266
7. INAP.net (5646) at aads 266
8. NetKonect (6716) at mae-east 238
9. AT&T (6478) at aads 233
10. Digex (2548) at mae-west 223
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT