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
---------------------------------------
209.95.130.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 1833 INCOMPLETE
Reserved AS Numbers
-------------------
AS65515 at Mae-East from Digex (AS2548) ASPATH=2548 5415 5415 5593 65515 8207 IGP
Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)
1. NetKonect (AS6716) at Mae-East 0 + 108769 = 108769 BGP prefix updates
2. USCyber (AS4136) at Mae-East 0 + 104859 = 104859 BGP prefix updates
3. GetNet (AS5784) at Mae-East 0 + 87197 = 87197 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 25678 + 8128 = 33806 BGP prefix updates
5. telia (AS1299) at Mae-East 204 + 30512 = 30716 BGP prefix updates
6. internetMCI (AS3561) at Mae-East 22982 + 6688 = 29670 BGP prefix updates
7. internetMCI (AS3561) at AADS 19746 + 7753 = 27499 BGP prefix updates
8. CompuServe (AS4183) at Mae-East 3 + 8404 = 8407 BGP prefix updates
9. AT&T (AS6478) at AADS 6006 + 289 = 6295 BGP prefix updates
10. AGIS (AS4200) at Mae-East 3780 + 2396 = 6176 BGP prefix updates
Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)
1. Interpath(AS3407) at Mae-East 27.58 (910 ann, 33 entries)
2. Cableol(AS5089) at Mae-East 27.50 (110 ann, 4 entries)
3. Pilot(AS3563) at Paix 18.35 (1376 ann, 75 entries)
4. IBMGlobal(AS2685) at AADS 16.06 (562 ann, 35 entries)
5. HLC(AS4565) at AADS 10.60 (689 ann, 65 entries)
6. HLC(AS4565) at Mae-East 9.63 (578 ann, 60 entries)
7. InterAccess(AS3789) at AADS 7.35 (191 ann, 26 entries)
8. DREN(AS668) at Mae-East 6.59 (1482 ann, 225 entries)
9. Intermedia(AS6235) at Mae-East 4.01 (914 ann, 228 entries)
10. CableInet(AS5462) at Mae-East 3.46 (128 ann, 37 entries)
11. NASA(AS297) at Mae-East 3.14 (893 ann, 284 entries)
12. HLC(AS4565) at Paix 3.03 (197 ann, 65 entries)
13. AT&T(AS6478) at AADS 2.93 (6006 ann, 2052 entries)
14. Netcom(AS2551) at Mae-East 2.55 (806 ann, 316 entries)
15. u-net(AS5669) at Paix 2.38 (19 ann, 8 entries)
16. Internex(AS2828) at AADS 2.33 (142 ann, 61 entries)
17. ESnet(AS293) at Mae-East 2.29 (437 ann, 191 entries)
18. AGIS(AS4200) at Mae-East 2.17 (3780 ann, 1738 entries)
19. FiberNet(AS6259) at Mae-East 2.04 (49 ann, 24 entries)
20. Internex(AS2828) at Mae-East 2.03 (124 ann, 61 entries)
Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)
1. SPRINT (1239) at mae-east 3504
2. internetMCI (3561) at mae-east 817
3. BBNplanet (1) at mae-west 384
4. AGIS (4200) at mae-east 353
5. IBMGlobal (2685) at mae-east 217
6. Grid (6113) at mae-west 204
7. CAIS (3491) at aads 182
8. INAP.net (5646) at mae-west 159
9. Digex (2548) at mae-west 157
10. AT&T (6478) at pb 156
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:13:17 EDT