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
---------------------------------------
195.101.148.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.0/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.0/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.128/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.128/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.128/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.160/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.160/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.160/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.192/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.192/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.224/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.224/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.224/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.32/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.32/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.32/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.64/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.64/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.64/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.96/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.96/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.101.148.96/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.0/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.0/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.128/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.128/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.128/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.160/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.160/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.160/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.192/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.192/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.224/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.224/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.224/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.32/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.32/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.32/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.64/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.64/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.64/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.96/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.96/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.6.71.96/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
198.80.116.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1670 IGP
198.80.116.192/27 at PacBell 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
207.26.64.80/28 at Mae-West from ANS (AS1673) ASPATH=1673 1675 IGP
207.26.64.80/28 at PacBell from ANS (AS1673) ASPATH=1673 1675 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
209.88.15.0/27 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
AS65350 at Mae-East from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 4802 INCOMPLETE
AS65000 at Mae-East from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
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
AS65350 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 4802 INCOMPLETE
AS65000 at AADS from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
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 196286 + 47810 = 244096 BGP prefix updates
2. internetMCI (AS3561) at PacBell 70269 + 17957 = 88226 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 58865 + 17417 = 76282 BGP prefix updates
4. internetMCI (AS3561) at AADS 54976 + 17782 = 72758 BGP prefix updates
5. AT&T (AS6478) at AADS 63671 + 2953 = 66624 BGP prefix updates
6. AT&T (AS6478) at PacBell 53174 + 2961 = 56135 BGP prefix updates
7. InterAccess (AS3789) at AADS 56 + 49921 = 49977 BGP prefix updates
8. Nacamar (AS3257) at Mae-West 19392 + 19299 = 38691 BGP prefix updates
9. BBNplanet (AS1) at Mae-East 17193 + 11480 = 28673 BGP prefix updates
10. MainStreet (AS3720) at Mae-West 0 + 25417 = 25417 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 2424.00 (19392 ann, 8 entries)
2. IBMGlobal(AS2685) at AADS 60.05 (1321 ann, 22 entries)
3. Cableol(AS5089) at Mae-East 37.50 (150 ann, 4 entries)
4. u-net(AS5669) at Mae-West 36.89 (332 ann, 9 entries)
5. OLEANE(AS2917) at Mae-East 31.11 (1400 ann, 45 entries)
6. IPF(AS5409) at Mae-East 19.40 (485 ann, 25 entries)
7. AIMnet(AS3763) at Mae-West 17.52 (911 ann, 52 entries)
8. AT&T(AS6478) at AADS 17.35 (63671 ann, 3670 entries)
9. AT&T(AS6478) at PacBell 14.52 (53174 ann, 3663 entries)
10. highway1(AS7922) at Mae-East 14.00 (126 ann, 9 entries)
11. highway1(AS7922) at Mae-West 12.78 (115 ann, 9 entries)
12. INSnet(AS5378) at Mae-East 11.84 (687 ann, 58 entries)
13. Priori(AS10303) at Mae-East 10.30 (474 ann, 46 entries)
14. u-net(AS5669) at Paix 9.78 (88 ann, 9 entries)
15. AGIS(AS4200) at Mae-East 9.63 (18602 ann, 1931 entries)
16. Priori(AS10303) at Mae-West 9.30 (428 ann, 46 entries)
17. SPRINT(AS1239) at Mae-East 9.13 (196286 ann, 21504 entries)
18. DISC(AS7170) at Mae-East 8.93 (1312 ann, 147 entries)
19. DREN(AS668) at Mae-West 8.68 (2030 ann, 234 entries)
20. DREN(AS668) at Mae-East 8.40 (2007 ann, 239 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3886
2. internetMCI (3561) at aads 751
3. AGIS (4200) at mae-east 405
4. BBNplanet (1) at mae-west 399
5. Grid (6113) at mae-east 328
6. IBMGlobal (2685) at mae-west 264
7. AT&T (6478) at pb 232
8. Digex (2548) at mae-west 216
9. INAP.net (5646) at aads 165
10. CAIS (3491) at aads 139
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT