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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A hypermail archive is available at
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Also see http://www.caida.org for more information about Internet statistics
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
195.166.192.0/27 at Mae-East from INSnet (AS5378) ASPATH=5378 6660 6660 6660 6765 6765 IGP
195.166.192.0/27 at Mae-East from INS (AS6660) ASPATH=6660 6765 6765 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
206.31.77.188/30 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
24.48.21.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.22.64/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.22.64/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.24.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.24.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.26.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.26.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
Reserved AS Numbers
-------------------
AS65021 at Mae-East from internetMCI (AS3561) ASPATH=3561 4618 4618 4618 65021 IGP
AS65021 at AADS from internetMCI (AS3561) ASPATH=3561 4618 4618 4618 65021 IGP
AS65021 at PacBell from internetMCI (AS3561) ASPATH=3561 4618 4618 4618 65021 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. idc (AS4694) at Mae-West 27 + 250370 = 250397 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 7 + 242457 = 242464 BGP prefix updates
3. GetNet (AS5784) at Mae-East 2 + 176969 = 176971 BGP prefix updates
4. Interpath (AS3407) at Mae-East 56 + 133015 = 133071 BGP prefix updates
5. USCyber (AS4136) at Mae-East 0 + 118347 = 118347 BGP prefix updates
6. SPRINT (AS1239) at Mae-East 82719 + 24451 = 107170 BGP prefix updates
7. Netcom (AS2551) at AADS 1446 + 91991 = 93437 BGP prefix updates
8. internetMCI (AS3561) at Mae-East 56925 + 19436 = 76361 BGP prefix updates
9. internetMCI (AS3561) at PacBell 49014 + 19200 = 68214 BGP prefix updates
10. internetMCI (AS3561) at AADS 45001 + 19892 = 64893 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 133.55 (5876 ann, 44 entries)
2. DISC(AS7170) at Mae-East 45.89 (3488 ann, 76 entries)
3. Netcom(AS2551) at AADS 19.81 (1446 ann, 73 entries)
4. DREN(AS668) at Mae-East 15.28 (3529 ann, 231 entries)
5. Netcom(AS2551) at Mae-East 14.43 (4704 ann, 326 entries)
6. netrail(AS4006) at Mae-East 13.64 (300 ann, 22 entries)
7. DREN(AS668) at Mae-West 13.26 (3089 ann, 233 entries)
8. EUnet(AS286) at Mae-East 11.75 (13980 ann, 1190 entries)
9. GoodNet(AS5696) at AADS 11.69 (5274 ann, 451 entries)
10. ACSI(AS6467) at Mae-West 11.10 (1099 ann, 99 entries)
11. ACSI(AS6467) at Mae-East 10.49 (997 ann, 95 entries)
12. AGIS(AS4200) at Mae-East 9.07 (16551 ann, 1825 entries)
13. ISI.Net(AS6196) at Mae-East 9.03 (650 ann, 72 entries)
14. Netcom(AS2551) at Mae-West 9.03 (2952 ann, 327 entries)
15. Netcom(AS2551) at PacBell 7.65 (2317 ann, 303 entries)
16. Nacamar(AS3257) at Mae-East 7.43 (401 ann, 54 entries)
17. CableInet(AS5462) at Mae-West 6.95 (299 ann, 43 entries)
18. Advantis(AS2685) at Mae-East 6.85 (2740 ann, 400 entries)
19. CableInet(AS5462) at Mae-East 6.35 (273 ann, 43 entries)
20. Internex(AS2828) at Mae-East 6.27 (401 ann, 64 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3555
2. internetMCI (3561) at mae-east 624
3. AGIS (4200) at mae-east 421
4. BBNplanet (1) at mae-east 299
5. CWIX (5683) at mae-west 162
6. Grid (6113) at pb 155
7. AT&T (6478) at mae-east 148
8. Digex (2548) at mae-west 147
9. NASA (297) at mae-west 140
10. EUnet (286) at mae-east 138
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:16 EDT