11/17/97 Internet Routing Problems

From: stats@merit.edu
Date: Tue Nov 18 1997 - 10:00:06 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
---------------------------------------
147.73.234.0/28 at Mae-West from DREN (AS668) ASPATH=668 IGP
147.73.234.128/27 at Mae-West from DREN (AS668) ASPATH=668 IGP
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.150.60.168/29 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
194.207.0.128/28 at Mae-West from VBC (AS6320) ASPATH=6320 IGP
205.229.33.16/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.128/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.160/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.192/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.64/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
205.229.44.96/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.155.136.96/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.155.136.96/27 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.136.96/27 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.137.1/32 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.155.137.1/32 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.137.1/32 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.153.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.155.153.32/27 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.153.32/27 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.153.64/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.155.153.64/27 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.155.153.64/27 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.12/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.12/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.12/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.16/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.16/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.16/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.24/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.24/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.24/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.28/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.28/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.28/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.4/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.4/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.4/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.44/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.44/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.44/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.52/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.52/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.52/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.56/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.56/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.56/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.68/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.68/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.68/30 at Mae-West from ACSI (AS6467) ASPATH=6467 7079 IGP
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at Mae-West from Grid (AS6113) ASPATH=6113 IGP
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP
208.199.194.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
39/8 at Mae-East from SPRINT (AS1239) ASPATH=1239 4000 286 286 174 IGP

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

1. SPRINT (AS1239) at Mae-East 288811 + 87269 = 376080 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 0 + 353813 = 353813 BGP prefix updates
3. idc (AS4694) at Mae-West 39 + 239835 = 239874 BGP prefix updates
4. GetNet (AS5784) at Mae-East 0 + 238676 = 238676 BGP prefix updates
5. USCyber (AS4136) at Mae-East 11 + 148714 = 148725 BGP prefix updates
6. Interpath (AS3407) at Mae-East 178 + 137998 = 138176 BGP prefix updates
7. internetMCI (AS3561) at Mae-East 67721 + 13527 = 81248 BGP prefix updates
8. internetMCI (AS3561) at AADS 44025 + 14153 = 58178 BGP prefix updates
9. telia (AS1299) at Mae-East 927 + 49150 = 50077 BGP prefix updates
10. BBNplanet (AS1) at Mae-East 15350 + 6543 = 21893 BGP prefix updates

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

1. NetAxs(AS4969) at Mae-East 146.07 (6135 ann, 42 entries)
2. Cableol(AS5089) at Mae-East 30.75 (123 ann, 4 entries)
3. Voicenet(AS3932) at Mae-East 25.15 (1333 ann, 53 entries)
4. VisiNet(AS6261) at Mae-East 15.60 (156 ann, 10 entries)
5. SPRINT(AS1239) at Mae-East 14.82 (288811 ann, 19487 entries)
6. Intelenet(AS5693) at Mae-West 13.09 (301 ann, 23 entries)
7. AGIS(AS4200) at Mae-East 12.30 (12901 ann, 1049 entries)
8. GoodNet(AS5696) at AADS 9.67 (4244 ann, 439 entries)
9. FiberNet(AS6259) at Mae-West 9.13 (210 ann, 23 entries)
10. ThePlanet(AS5388) at Mae-West 7.67 (253 ann, 33 entries)
11. HLC(AS4565) at Mae-East 7.25 (500 ann, 69 entries)
12. ACSI(AS6467) at Mae-West 6.94 (770 ann, 111 entries)
13. EUnet(AS286) at Mae-East 6.75 (7793 ann, 1155 entries)
14. ThePlanet(AS5388) at Mae-East 6.20 (217 ann, 35 entries)
15. FiberNet(AS6259) at Mae-East 6.09 (140 ann, 23 entries)
16. ESnet(AS293) at Mae-West 5.78 (665 ann, 115 entries)
17. CAIS(AS3491) at AADS 5.60 (3615 ann, 646 entries)
18. HLC(AS4565) at Mae-West 5.38 (371 ann, 69 entries)
19. CAIS(AS3491) at Mae-West 5.31 (3053 ann, 575 entries)
20. HLC(AS4565) at AADS 5.28 (364 ann, 69 entries)

Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)

1. SPRINT (1239) at mae-east 3583
2. internetMCI (3561) at aads 659
3. BBNplanet (1) at mae-west 415
4. AGIS (4200) at mae-east 336
5. AT&T (6478) at pb 213
6. Grid (6113) at pb 171
7. IBMGlobal (2685) at aads 167
8. Digex (2548) at mae-west 154
9. CWIX (5683) at mae-west 152
10. NASA (297) at mae-west 142






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