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
http://www.merit.net/mail.archives/html/routing-problems/
Also see http://www.caida.org for more information about Internet statistics
collection research efforts.
Reserved Network and Host Announcements
---------------------------------------
192.17.238.128/27 at AADS from UIUC (AS38) ASPATH=38 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. SPRINT (AS1239) at Mae-East 54723 + 15553 = 70276 BGP prefix updates
2. internetMCI (AS3561) at AADS 24545 + 7968 = 32513 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 22309 + 8217 = 30526 BGP prefix updates
4. internetMCI (AS3561) at PacBell 20208 + 8806 = 29014 BGP prefix updates
5. MainStreet (AS3720) at Mae-West 0 + 22824 = 22824 BGP prefix updates
6. OurWorld (AS7594) at Mae-West 9355 + 9 = 9364 BGP prefix updates
7. OurWorld (AS7594) at PacBell 0 + 9177 = 9177 BGP prefix updates
8. ANS (AS1673) at Mae-East 8254 + 554 = 8808 BGP prefix updates
9. VisiNet (AS6261) at Mae-West 4604 + 3888 = 8492 BGP prefix updates
10. VisiNet (AS6261) at Mae-East 3836 + 3745 = 7581 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. Cableol(AS5089) at Mae-East 142.40 (712 ann, 5 entries)
2. OurWorld(AS7594) at Paix 120.90 (2539 ann, 21 entries)
3. ICI(AS6561) at Mae-West 42.07 (631 ann, 15 entries)
4. OurWorld(AS7594) at Mae-West 37.57 (9355 ann, 249 entries)
5. u-net(AS5669) at Mae-West 26.40 (264 ann, 10 entries)
6. AIMnet(AS3763) at Mae-West 25.40 (1346 ann, 53 entries)
7. VisiNet(AS6261) at Mae-West 21.02 (4604 ann, 219 entries)
8. VisiNet(AS6261) at Mae-East 17.93 (3836 ann, 214 entries)
9. GEOnet(AS3356) at PacBell 11.08 (1130 ann, 102 entries)
10. CableInet(AS5462) at Mae-West 9.41 (301 ann, 32 entries)
11. NASA(AS297) at Mae-East 8.49 (2351 ann, 277 entries)
12. UIUC(AS38) at AADS 8.12 (65 ann, 8 entries)
13. u-net(AS5669) at Paix 7.90 (79 ann, 10 entries)
14. FiberNet(AS6259) at Mae-East 7.32 (205 ann, 28 entries)
15. Above(AS6461) at PacBell 6.82 (2338 ann, 343 entries)
16. Above(AS6461) at AADS 6.67 (2288 ann, 343 entries)
17. FiberNet(AS6259) at Mae-West 6.21 (205 ann, 33 entries)
18. Above(AS6461) at Mae-East 6.16 (2150 ann, 349 entries)
19. Above(AS6461) at Paix 5.36 (563 ann, 105 entries)
20. DREN(AS668) at Mae-West 5.15 (1406 ann, 273 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. internetMCI (3561) at pb 729
2. BBNplanet (1) at mae-west 482
3. Digex (2548) at mae-west 366
4. IBMGlobal (2685) at mae-west 351
5. AT&T (7018) at aads 266
6. INAP.net (5646) at aads 202
7. Grid (6113) at pb 165
8. CAIS (3491) at aads 159
9. NASA (297) at mae-west 130
10. DREN (668) at mae-west 129
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:18 EDT