10/22/97 Internet Routing Problems

From: stats@merit.edu
Date: Thu Oct 23 1997 - 10:00:07 EDT


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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Also see http://www.caida.org for more information about Internet statistics
collection research efforts.

Reserved Network and Host Announcements
---------------------------------------
158.152.0.224/29 at Mae-East from Priori (AS10303) ASPATH=10303 174 2529 5417 IGP
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
193.44.0.32/30 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 Incomplete
194.64.0.16/30 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
194.64.0.8/30 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
195.180.1.130/32 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
195.180.2.48/28 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
195.204.43.32/27 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 1299 1299 3301 5381 IGP
198.60.153.49/32 at Mae-East from GoodNet (AS5696) ASPATH=5696 Incomplete
198.60.153.49/32 at Mae-West from GoodNet (AS5696) ASPATH=5696 Incomplete
198.60.153.49/32 at AADS from GoodNet (AS5696) ASPATH=5696 Incomplete
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
206.83.135.48/30 at Mae-East from GoodNet (AS5696) ASPATH=5696 Incomplete
206.83.135.48/30 at Mae-West from GoodNet (AS5696) ASPATH=5696 Incomplete
206.83.135.48/30 at AADS from GoodNet (AS5696) ASPATH=5696 Incomplete
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP

Reserved AS Numbers
-------------------
AS65515 at Mae-East from Digex (AS2548) ASPATH=2548 5415 65515 8207 IGP

AS65515 at Mae-West from Digex (AS2548) ASPATH=2548 5415 65515 8207 IGP

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

1. NetKonect (AS6716) at Mae-East 154 + 519902 = 520056 BGP prefix updates
2. GetNet (AS5784) at Mae-East 88 + 396505 = 396593 BGP prefix updates
3. USCyber (AS4136) at Mae-East 164 + 341949 = 342113 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 259937 + 23462 = 283399 BGP prefix updates
5. idc (AS4694) at Mae-West 4273 + 223874 = 228147 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 205744 + 10312 = 216056 BGP prefix updates
7. Interpath (AS3407) at Mae-East 844 + 188594 = 189438 BGP prefix updates
8. telia (AS1299) at Mae-East 3306 + 127122 = 130428 BGP prefix updates
9. internetMCI (AS3561) at PacBell 81551 + 12498 = 94049 BGP prefix updates
10. internetMCI (AS3561) at AADS 65563 + 27544 = 93107 BGP prefix updates

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

1. Priori(AS10303) at Mae-East 1246.17 (14954 ann, 12 entries)
2. Priori(AS10303) at Mae-West 158.00 (316 ann, 2 entries)
3. NetAxs(AS4969) at Mae-East 118.16 (5790 ann, 49 entries)
4. Nacamar(AS3257) at Mae-West 36.24 (1631 ann, 45 entries)
5. AT&T(AS6478) at Mae-West 34.18 (57694 ann, 1688 entries)
6. Home(AS6172) at Mae-West 30.80 (616 ann, 20 entries)
7. u-net(AS5669) at Mae-West 30.62 (245 ann, 8 entries)
8. ESnet(AS293) at Mae-West 30.00 (3600 ann, 120 entries)
9. Genuity(AS3847) at Mae-West 29.43 (12272 ann, 417 entries)
10. Iconnet(AS3951) at Mae-West 29.08 (3664 ann, 126 entries)
11. AimNet(AS3763) at Mae-West 28.49 (1339 ann, 47 entries)
12. CAIS(AS3491) at Mae-West 28.42 (19016 ann, 669 entries)
13. Primenet(AS3549) at Mae-West 28.05 (1823 ann, 65 entries)
14. ACSI(AS6467) at Mae-West 27.94 (4275 ann, 153 entries)
15. Voicenet(AS3932) at Mae-West 27.60 (1518 ann, 55 entries)
16. Advantis(AS2685) at Mae-West 27.48 (9947 ann, 362 entries)
17. DREN(AS668) at Mae-West 27.11 (5964 ann, 220 entries)
18. DRA(AS1746) at Mae-West 26.33 (316 ann, 12 entries)
19. MFSnet(AS6066) at Mae-West 26.00 (52 ann, 2 entries)
20. FibreNet(AS6259) at Mae-West 26.00 (104 ann, 4 entries)

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

1. SPRINT (1239) at mae-east 3369
2. internetMCI (3561) at mae-east 696
3. AGIS (4200) at mae-east 441
4. BBNplanet (1) at mae-west 399
5. AT&T (6478) at pb 262
6. CWIX (5683) at mae-west 208
7. Grid (6113) at mae-east 172
8. Digex (2548) at mae-west 146
9. EUnet (286) at mae-east 140
10. CAIS (3491) at aads 132






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