01/16/98 Internet Routing Problems

From: stats@merit.edu
Date: Sat Jan 17 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.
Send comments and questions to ipma@merit.edu

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collection research efforts.

Reserved Network and Host Announcements
---------------------------------------
10.0.0.0/8 at Mae-East from Interpath (AS3407) ASPATH=3407 INCOMPLETE
209.140.224.0/28 at Mae-East from GoodNet (AS5696) ASPATH=5696 INCOMPLETE
209.140.224.0/28 at AADS from GoodNet (AS5696) ASPATH=5696 INCOMPLETE
209.95.130.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 INCOMPLETE

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

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

1. GetNet (AS5784) at Mae-East 0 + 93846 = 93846 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 4 + 92256 = 92260 BGP prefix updates
3. SPRINT (AS1239) at Mae-East 61840 + 15422 = 77262 BGP prefix updates
4. USCyber (AS4136) at Mae-East 2 + 74016 = 74018 BGP prefix updates
5. internetMCI (AS3561) at AADS 48523 + 20226 = 68749 BGP prefix updates
6. Seastrom (AS3066) at Mae-East 0 + 66697 = 66697 BGP prefix updates
7. internetMCI (AS3561) at Mae-East 34858 + 11979 = 46837 BGP prefix updates
8. CompuServe (AS4183) at Mae-East 3 + 20700 = 20703 BGP prefix updates
9. telia (AS1299) at Mae-East 262 + 18786 = 19048 BGP prefix updates
10. BBNplanet (AS1) at Mae-East 6820 + 2135 = 8955 BGP prefix updates

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

1. IBMGlobal(AS2685) at AADS 215.14 (4733 ann, 22 entries)
2. MIBX(AS6218) at PacBell 38.41 (845 ann, 22 entries)
3. NetAxs(AS4969) at Mae-East 18.69 (4636 ann, 248 entries)
4. VisiNet(AS6261) at Mae-East 14.48 (2187 ann, 151 entries)
5. Cableol(AS5089) at Mae-East 11.25 (45 ann, 4 entries)
6. UIC(AS6200) at AADS 10.33 (31 ann, 3 entries)
7. OLEANE(AS2917) at Mae-East 9.60 (413 ann, 43 entries)
8. DREN(AS668) at Mae-East 8.68 (2022 ann, 233 entries)
9. FiberNet(AS6259) at Mae-East 8.36 (209 ann, 25 entries)
10. HLC(AS4565) at AADS 6.79 (448 ann, 66 entries)
11. HLC(AS4565) at Mae-East 6.52 (430 ann, 66 entries)
12. DISC(AS7170) at Mae-East 5.44 (615 ann, 113 entries)
13. INAP.net(AS5646) at Mae-East 5.30 (6163 ann, 1162 entries)
14. ThePlanet(AS5388) at Mae-East 5.05 (409 ann, 81 entries)
15. Intermedia(AS6235) at Mae-East 4.77 (1096 ann, 230 entries)
16. CAIS(AS3491) at AADS 4.60 (5456 ann, 1185 entries)
17. INAP.net(AS5646) at AADS 4.55 (5300 ann, 1165 entries)
18. IXI(AS5418) at Mae-East 4.33 (13 ann, 3 entries)
19. Interpath(AS3407) at Mae-East 4.21 (139 ann, 33 entries)
20. Internex(AS2828) at Mae-East 4.00 (260 ann, 65 entries)

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

1. SPRINT (1239) at mae-east 3754
2. internetMCI (3561) at pb 820
3. BBNplanet (1) at mae-west 384
4. AGIS (4200) at mae-east 352
5. IBMGlobal (2685) at mae-west 237
6. Grid (6113) at mae-west 189
7. CAIS (3491) at aads 184
8. Digex (2548) at mae-west 168
9. AT&T (6478) at aads 159
10. INAP.net (5646) at aads 158






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