02/26/98 Internet Routing Problems

From: stats@merit.edu
Date: Fri Feb 27 1998 - 10:00:03 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
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
205.132.49.0/30 at Mae-East from AGIS (AS4200) ASPATH=4200 7770 6484 IGP
207.26.64.80/28 at Mae-West 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 94136 + 21467 = 115603 BGP prefix updates
2. internetMCI (AS3561) at AADS 45226 + 19664 = 64890 BGP prefix updates
3. internetMCI (AS3561) at PacBell 44541 + 18438 = 62979 BGP prefix updates
4. MainStreet (AS3720) at Mae-West 313 + 58932 = 59245 BGP prefix updates
5. internetMCI (AS3561) at Mae-East 41129 + 17614 = 58743 BGP prefix updates
6. OurWorld (AS7594) at Mae-West 1895 + 49127 = 51022 BGP prefix updates
7. OurWorld (AS7594) at Paix 920 + 49135 = 50055 BGP prefix updates
8. conxion (AS4544) at Mae-East 48 + 47190 = 47238 BGP prefix updates
9. conxion (AS4544) at PacBell 26 + 47117 = 47143 BGP prefix updates
10. conxion (AS4544) at Mae-West 21 + 47116 = 47137 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-West 135.12 (10810 ann, 80 entries)
2. ThePlanet(AS5388) at Mae-East 127.95 (10620 ann, 83 entries)
3. u-net(AS5669) at Mae-West 43.88 (351 ann, 8 entries)
4. Cableol(AS5089) at Mae-East 21.00 (84 ann, 4 entries)
5. AIMnet(AS3763) at Mae-West 20.28 (1014 ann, 50 entries)
6. NetAxs(AS4969) at Mae-East 16.44 (3271 ann, 199 entries)
7. netrail(AS4006) at Mae-East 14.19 (298 ann, 21 entries)
8. Intelenet(AS5693) at Mae-West 13.96 (349 ann, 25 entries)
9. highway1(AS7922) at Mae-West 13.88 (111 ann, 8 entries)
10. highway1(AS7922) at Mae-East 13.50 (108 ann, 8 entries)
11. WNA(AS2914) at Mae-East 13.11 (15819 ann, 1207 entries)
12. u-net(AS5669) at Paix 13.00 (104 ann, 8 entries)
13. Above(AS6461) at Mae-East 12.77 (3498 ann, 274 entries)
14. MainStreet(AS3720) at Mae-West 9.21 (313 ann, 34 entries)
15. Above(AS6461) at PacBell 9.07 (2620 ann, 289 entries)
16. OurWorld(AS7594) at Mae-West 8.50 (1895 ann, 223 entries)
17. HLC(AS4565) at Mae-West 8.06 (580 ann, 72 entries)
18. HLC(AS4565) at AADS 7.61 (548 ann, 72 entries)
19. HLC(AS4565) at Mae-East 7.51 (541 ann, 72 entries)
20. WNA(AS2914) at Mae-West 6.70 (16135 ann, 2409 entries)






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