02/27/98 Internet Routing Problems

From: stats@merit.edu
Date: Sat Feb 28 1998 - 10:00:02 EST


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.
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Reserved Network and Host Announcements
---------------------------------------
0.0.0.0/0 at Mae-West from Intelenet (AS5693) ASPATH=5693 IGP
0.0.0.0/0 at Mae-West from Intelenet (AS5693) ASPATH=5693 IGP
192.17.238.128/27 at AADS from UIUC (AS38) ASPATH=38 IGP
194.207.0.128/28 at Mae-West from VBC (AS6320) ASPATH=6320 IGP
194.250.214.0/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.0/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.0/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.128/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.128/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.128/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.160/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.160/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.160/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.192/28 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.192/28 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.192/28 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.208/28 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.208/28 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.208/28 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.224/28 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.224/28 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.224/28 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.240/28 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.240/28 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.240/28 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.32/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.32/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.32/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.64/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.64/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.64/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.96/27 at Mae-East from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.96/27 at Mae-West from ANS (AS1673) ASPATH=1673 1699 6712 IGP
194.250.214.96/27 at PacBell from ANS (AS1673) ASPATH=1673 1699 6712 IGP
195.12.164.128/28 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 INCOMPLETE
195.12.164.144/28 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 INCOMPLETE
195.12.164.248/29 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 INCOMPLETE
195.12.165.0/29 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 1299 1299 1299 8516 INCOMPLETE
207.26.64.80/28 at Mae-East from ANS (AS1673) ASPATH=1673 1324 IGP
207.26.64.80/28 at PacBell from ANS (AS1673) ASPATH=1673 1675 IGP

Reserved AS Numbers
-------------------
AS65010 at Mae-East from ANS (AS1673) ASPATH=1673
AS65010 at PacBell from ANS (AS1673) ASPATH=1673

Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)

1. SPRINT (AS1239) at Mae-East 63974 + 17627 = 81601 BGP prefix updates
2. internetMCI (AS3561) at PacBell 52160 + 17468 = 69628 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 44464 + 16969 = 61433 BGP prefix updates
4. MainStreet (AS3720) at Mae-West 19 + 56079 = 56098 BGP prefix updates
5. internetMCI (AS3561) at AADS 40343 + 15735 = 56078 BGP prefix updates
6. AGIS (AS4200) at Mae-East 22114 + 13484 = 35598 BGP prefix updates
7. WNA (AS2914) at Mae-East 16985 + 8738 = 25723 BGP prefix updates
8. WNA (AS2914) at Mae-West 17332 + 7965 = 25297 BGP prefix updates
9. ANS (AS1673) at Mae-East 17005 + 693 = 17698 BGP prefix updates
10. AT&T (AS6478) at PacBell 14115 + 441 = 14556 BGP prefix updates

Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)

1. ThePlanet(AS5388) at Mae-East 25.60 (2099 ann, 82 entries)
2. Cableol(AS5089) at Mae-East 24.75 (99 ann, 4 entries)
3. u-net(AS5669) at Mae-West 22.38 (179 ann, 8 entries)
4. ThePlanet(AS5388) at Mae-West 22.15 (1772 ann, 80 entries)
5. AIMnet(AS3763) at Mae-West 16.80 (840 ann, 50 entries)
6. Above(AS6461) at Mae-East 14.97 (3429 ann, 229 entries)
7. Intelenet(AS5693) at Mae-West 14.04 (351 ann, 25 entries)
8. WNA(AS2914) at Mae-East 13.84 (16985 ann, 1227 entries)
9. highway1(AS7922) at Mae-West 13.62 (109 ann, 8 entries)
10. AGIS(AS4200) at Mae-East 12.42 (22114 ann, 1780 entries)
11. highway1(AS7922) at Mae-East 12.38 (99 ann, 8 entries)
12. Above(AS6461) at PacBell 12.18 (2790 ann, 229 entries)
13. NetAxs(AS4969) at Mae-East 10.66 (2186 ann, 205 entries)
14. OurWorld(AS7594) at Mae-West 9.84 (1545 ann, 157 entries)
15. ANS(AS1673) at Mae-East 7.15 (17005 ann, 2379 entries)
16. WNA(AS2914) at Mae-West 7.10 (17332 ann, 2440 entries)
17. HLC(AS4565) at AADS 7.07 (509 ann, 72 entries)
18. HLC(AS4565) at Mae-West 7.07 (509 ann, 72 entries)
19. HLC(AS4565) at Mae-East 7.07 (509 ann, 72 entries)
20. EXODUS(AS3967) at PacBell 7.04 (817 ann, 116 entries)






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