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
---------------------------------------
No routing problems were detected
Reserved AS Numbers
-------------------
AS65355 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 7175 7593 3409 65355 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. AS6716 at Mae-East 0 + 118884 = 118884 BGP prefix updates
2. AS2551 at AADS 746 + 47864 = 48610 BGP prefix updates
3. AS2551 at PacBell 331 + 47668 = 47999 BGP prefix updates
4. AS3561 at AADS 28989 + 14695 = 43684 BGP prefix updates
5. AS4136 at Mae-East 0 + 16318 = 16318 BGP prefix updates
6. AS3491 at AADS 9938 + 5244 = 15182 BGP prefix updates
7. AS2551 at Mae-East 49 + 11285 = 11334 BGP prefix updates
8. AS3066 at Mae-East 0 + 11163 = 11163 BGP prefix updates
9. AS4694 at Mae-West 0 + 11013 = 11013 BGP prefix updates
10. AS1299 at Mae-East 2 + 8751 = 8753 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. (AS6218) at PacBell 124.76 (3618 ann, 29 entries)
2. (AS3491) at AADS 8.11 (9938 ann, 1226 entries)
3. (AS4565) at AADS 7.63 (496 ann, 65 entries)
4. (AS3549) at AADS 6.76 (913 ann, 135 entries)
5. (AS2685) at AADS 6.58 (2381 ann, 362 entries)
6. (AS6261) at Mae-West 4.77 (759 ann, 159 entries)
7. (AS4969) at Mae-East 4.29 (1046 ann, 244 entries)
8. (AS237) at AADS 4.03 (423 ann, 105 entries)
9. (AS2828) at AADS 3.57 (232 ann, 65 entries)
10. (AS6261) at Mae-East 3.25 (517 ann, 159 entries)
11. (AS4565) at Paix 2.58 (168 ann, 65 entries)
12. (AS2551) at AADS 2.36 (746 ann, 316 entries)
13. (AS2917) at Mae-East 2.11 (93 ann, 44 entries)
14. (AS5696) at AADS 2.10 (931 ann, 444 entries)
15. (AS3257) at Mae-East 1.96 (131 ann, 67 entries)
16. (AS3561) at AADS 1.70 (28989 ann, 17080 entries)
17. (AS5388) at Mae-West 1.54 (120 ann, 78 entries)
18. (AS5388) at Mae-East 1.47 (119 ann, 81 entries)
19. (AS6478) at AADS 1.31 (2838 ann, 2165 entries)
20. (AS6235) at Mae-East 1.16 (248 ann, 214 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. (1239) at mae-east 3648
2. (3561) at mae-east 772
3. (1) at mae-west 425
4. (4200) at mae-east 358
5. (2685) at mae-west 229
6. (6478) at aads 186
7. (6113) at mae-west 186
8. (2548) at mae-west 161
9. (5646) at aads 160
10. (3491) at mae-west 143
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT