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
---------------------------------------
198.80.9.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1327 1684 IGP
198.80.9.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1327 1684 IGP
198.80.9.0/28 at PacBell from ANS (AS1673) ASPATH=1673 1327 1684 IGP
207.26.64.80/28 at PacBell from ANS (AS1673) ASPATH=1673 1675 IGP
Reserved AS Numbers
-------------------
AS64600 at Mae-East from NASA (AS297) ASPATH=297 64600 IGP
AS65000 at Mae-East from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
AS64600 at Mae-West from NASA (AS297) ASPATH=297 64600 IGP
AS65000 at AADS from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
AS65000 at PacBell from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. AS1239 at Mae-East 86324 + 37797 = 124121 BGP prefix updates
2. AS6478 at AADS 77508 + 3158 = 80666 BGP prefix updates
3. AS3257 at Mae-West 30959 + 30905 = 61864 BGP prefix updates
4. AS6478 at PacBell 54797 + 3611 = 58408 BGP prefix updates
5. AS3561 at AADS 43732 + 13038 = 56770 BGP prefix updates
6. AS3561 at PacBell 29355 + 12488 = 41843 BGP prefix updates
7. AS3561 at Mae-East 28947 + 12114 = 41061 BGP prefix updates
8. AS3720 at Mae-West 0 + 38709 = 38709 BGP prefix updates
9. AS3257 at Mae-East 12521 + 12345 = 24866 BGP prefix updates
10. AS1 at Mae-East 12488 + 6022 = 18510 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. (AS3257) at Mae-West 58.88 (3474 ann, 59 entries)
2. (AS3257) at Mae-East 23.95 (1485 ann, 62 entries)
3. (AS3763) at Mae-West 9.29 (483 ann, 52 entries)
4. (AS7922) at Mae-West 5.78 (52 ann, 9 entries)
5. (AS7922) at Mae-East 5.44 (49 ann, 9 entries)
6. (AS1673) at PacBell 5.10 (8551 ann, 1676 entries)
7. (AS5409) at Mae-West 3.52 (88 ann, 25 entries)
8. (AS1239) at Mae-East 2.99 (64892 ann, 21672 entries)
9. (AS2917) at Mae-East 2.67 (120 ann, 45 entries)
10. (AS4200) at Mae-East 2.60 (4760 ann, 1834 entries)
11. (AS3561) at AADS 2.34 (40916 ann, 17470 entries)
12. (AS3789) at AADS 2.32 (65 ann, 28 entries)
13. (AS6261) at Mae-East 2.14 (345 ann, 161 entries)
14. (AS103) at AADS 2.11 (40 ann, 19 entries)
15. (AS3549) at AADS 2.04 (290 ann, 142 entries)
16. (AS3549) at Mae-East 1.98 (281 ann, 142 entries)
17. (AS3549) at Mae-West 1.97 (280 ann, 142 entries)
18. (AS5632) at Mae-West 1.89 (236 ann, 125 entries)
19. (AS5552) at Mae-East 1.82 (287 ann, 158 entries)
20. (AS6261) at Mae-West 1.77 (283 ann, 160 entries)
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT