11/01/97 Internet Routing Problems

From: stats@merit.edu
Date: Sun Nov 02 1997 - 10:00:05 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
---------------------------------------
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.116.222.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
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
206.31.77.188/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6467 7079 IGP
206.31.77.188/30 at Mae-East from ACSI (AS6467) ASPATH=6467 7079 IGP
206.31.77.188/30 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
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP
24.48.21.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.22.64/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.24.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.26.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete

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 51 + 376265 = 376316 BGP prefix updates
2. internetMCI (AS3561) at Mae-East 281527 + 51447 = 332974 BGP prefix updates
3. USCyber (AS4136) at Mae-East 33 + 253830 = 253863 BGP prefix updates
4. GetNet (AS5784) at Mae-East 24 + 250574 = 250598 BGP prefix updates
5. internetMCI (AS3561) at PacBell 152422 + 57044 = 209466 BGP prefix updates
6. Interpath (AS3407) at Mae-East 315 + 205675 = 205990 BGP prefix updates
7. SPRINT (AS1239) at Mae-East 163115 + 16440 = 179555 BGP prefix updates
8. internetMCI (AS3561) at AADS 117375 + 32026 = 149401 BGP prefix updates
9. idc (AS4694) at Mae-West 2 + 126158 = 126160 BGP prefix updates
10. telia (AS1299) at Mae-East 1798 + 81711 = 83509 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 140.31 (6314 ann, 45 entries)
2. Nacamar(AS3257) at Mae-West 61.91 (2848 ann, 46 entries)
3. Nacamar(AS3257) at Mae-East 59.43 (3150 ann, 53 entries)
4. DISC(AS7170) at Mae-East 17.82 (1301 ann, 73 entries)
5. internetMCI(AS3561) at Mae-East 17.30 (281527 ann, 16272 entries)
6. HLC(AS4565) at Mae-East 13.10 (878 ann, 67 entries)
7. AGIS(AS4200) at Mae-East 12.76 (23033 ann, 1805 entries)
8. onecall(AS6402) at AADS 11.95 (490 ann, 41 entries)
9. Advantis(AS2685) at Mae-East 11.27 (4689 ann, 416 entries)
10. DREN(AS668) at Mae-East 10.56 (2376 ann, 225 entries)
11. OLEANE(AS2917) at Mae-East 9.55 (382 ann, 40 entries)
12. internetMCI(AS3561) at PacBell 9.33 (152422 ann, 16339 entries)
13. FibreNet(AS6259) at Mae-East 9.00 (36 ann, 4 entries)
14. Internex(AS2828) at Mae-East 9.00 (576 ann, 64 entries)
15. Cableol(AS5089) at Mae-East 9.00 (18 ann, 2 entries)
16. On-Net(AS6792) at Mae-East 8.75 (35 ann, 4 entries)
17. WNA(AS2914) at Mae-East 8.47 (7862 ann, 928 entries)
18. LinkAGE(AS4058) at Mae-East 8.24 (140 ann, 17 entries)
19. SPRINT(AS1239) at Mae-East 8.16 (163115 ann, 19982 entries)
20. Dialnet(AS5552) at Mae-East 8.01 (617 ann, 77 entries)

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

1. SPRINT (1239) at mae-east 3851
2. internetMCI (3561) at aads 610
3. BBNplanet (1) at mae-west 414
4. AGIS (4200) at mae-east 361
5. AT&T (6478) at mae-west 240
6. CWIX (5683) at mae-west 165
7. Grid (6113) at mae-east 155
8. Digex (2548) at mae-west 148
9. NASA (297) at mae-west 146
10. INAP.net (5646) at aads 128






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