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
---------------------------------------
10.1.0.0/24 at Mae-West from VBC (AS6320) ASPATH=6320 3344 IGP
195.14.168.72/30 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 8516 8486 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-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-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-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-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-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-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-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-West 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
202.163.0.224/28 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 7589 IGP
202.163.0.52/30 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 7589 INCOMPLETE
202.163.4.0/28 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 7589 INCOMPLETE
202.163.4.16/28 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 7589 INCOMPLETE
206.84.149.20/32 at Mae-East from AGIS (AS4200) ASPATH=4200 IGP
207.26.64.80/28 at Mae-West 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
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. SPRINT (AS1239) at Mae-East 56028 + 24207 = 80235 BGP prefix updates
2. internetMCI (AS3561) at Mae-East 47289 + 11409 = 58698 BGP prefix updates
3. internetMCI (AS3561) at AADS 27441 + 11173 = 38614 BGP prefix updates
4. internetMCI (AS3561) at PacBell 26532 + 11486 = 38018 BGP prefix updates
5. AGIS (AS4200) at Mae-East 19234 + 4860 = 24094 BGP prefix updates
6. MainStreet (AS3720) at Mae-West 0 + 19321 = 19321 BGP prefix updates
7. AT&T (AS6478) at Mae-East 17813 + 874 = 18687 BGP prefix updates
8. Digex (AS2548) at Mae-East 9428 + 6677 = 16105 BGP prefix updates
9. Digex (AS2548) at Mae-West 8798 + 6628 = 15426 BGP prefix updates
10. ANS (AS1673) at Mae-West 8487 + 4647 = 13134 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 93.50 (374 ann, 4 entries)
2. IBMGlobal(AS2685) at AADS 49.02 (2255 ann, 46 entries)
3. VBC(AS6320) at Mae-West 27.16 (516 ann, 19 entries)
4. AIMnet(AS3763) at Mae-West 27.12 (1410 ann, 52 entries)
5. highway1(AS7922) at Mae-West 13.12 (105 ann, 8 entries)
6. highway1(AS7922) at Mae-East 12.25 (98 ann, 8 entries)
7. AGIS(AS4200) at Mae-East 10.01 (19234 ann, 1921 entries)
8. Digex(AS2548) at Mae-East 9.92 (9428 ann, 950 entries)
9. Xara(AS5413) at Mae-East 9.88 (593 ann, 60 entries)
10. Digex(AS2548) at Mae-West 9.32 (8798 ann, 944 entries)
11. Interpath(AS3407) at Mae-East 8.53 (256 ann, 30 entries)
12. IPF(AS5409) at Mae-East 7.94 (278 ann, 35 entries)
13. INS(AS6660) at Mae-East 7.41 (274 ann, 37 entries)
14. AT&T(AS6478) at Mae-East 7.02 (17813 ann, 2536 entries)
15. Nacamar(AS3257) at Mae-East 6.45 (503 ann, 78 entries)
16. Above(AS6461) at PacBell 5.48 (1424 ann, 260 entries)
17. ANS(AS1673) at Mae-West 5.23 (8487 ann, 1623 entries)
18. DREN(AS668) at Mae-West 4.95 (1233 ann, 249 entries)
19. u-net(AS5669) at Mae-West 4.75 (38 ann, 8 entries)
20. Megsinet(AS7194) at AADS 4.47 (85 ann, 19 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3993
2. internetMCI (3561) at pb 824
3. BBNplanet (1) at mae-east 416
4. AGIS (4200) at mae-east 382
5. Grid (6113) at pb 326
6. IBMGlobal (2685) at mae-west 257
7. Digex (2548) at mae-west 218
8. AT&T (6478) at pb 187
9. CAIS (3491) at aads 138
10. NASA (297) at mae-west 137
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT