05/05/98 Internet Routing Problems

From: stats@merit.edu
Date: Wed May 06 1998 - 10:00:04 EDT


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.
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Also see http://www.caida.org for more information about Internet statistics
collection research efforts.

Reserved Network and Host Announcements
---------------------------------------
131.103.1.45/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
131.103.1.45/32 at Mae-West from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.129.152/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.129.152/30 at Mae-West from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.140.20/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.140.20/30 at Mae-West from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.141.40/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
137.39.141.40/30 at Mae-West from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.1.124/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.1.46/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.1.75/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.2.160/28 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.50.120/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.50.124/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.50.216/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.50.236/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.50.248/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 INCOMPLETE
165.117.50.250/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 INCOMPLETE
165.117.50.44/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 INCOMPLETE
165.117.52.104/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 INCOMPLETE
165.117.52.232/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.52.236/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.53.192/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.53.224/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.56.40/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
165.117.56.8/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.1.0/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.1.248/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.1.56/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.112.20/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.112.4/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.112.8/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.128.16/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.2.112/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.2.116/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.2.116/32 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.2.120/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.2.96/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.232.84/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.232.88/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.116/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.12/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.120/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.136/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.140/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
167.152.24.148/30 at Mae-East from VisiNet (AS6261) ASPATH=6261 8191 2548 IGP
***** Too many entries. List Truncated! *****

Reserved AS Numbers
-------------------
AS64600 at Mae-East from NASA (AS297) ASPATH=297 64600 IGP

AS65034 at Mae-East from CAIS (AS3491) ASPATH=3491 6261 7594 7593 65034 IGP

AS65035 at Mae-East from VisiNet (AS6261) ASPATH=6261 7594 7593 65035 IGP

AS65000 at Mae-East from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP

AS65350 at Mae-East from VisiNet (AS6261) ASPATH=6261 7594 65350 7704 IGP

AS65531 at Mae-East from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 65531 IGP

AS64600 at Mae-West from NASA (AS297) ASPATH=297 64600 IGP

AS65034 at Mae-West from CAIS (AS3491) ASPATH=3491 6261 7594 7593 65034 IGP

AS65035 at Mae-West from VisiNet (AS6261) ASPATH=6261 7594 7593 65035 IGP

AS65350 at Mae-West from VisiNet (AS6261) ASPATH=6261 7594 65350 7704 IGP

AS65531 at Mae-West from VisiNet (AS6261) ASPATH=6261 7594 65350 7706 65531 IGP

AS65034 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 7593 65034 IGP

AS65035 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 7593 65035 IGP

AS65000 at AADS from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP

AS65350 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7704 IGP

AS65531 at AADS from CAIS (AS3491) ASPATH=3491 6261 7594 65350 7706 65531 IGP

AS65000 at PacBell from internetMCI (AS3561) ASPATH=3561 4230 65000 IGP

AS65034 at Paix from OurWorld (AS7594) ASPATH=7594 7593 65034 IGP

AS65035 at Paix from OurWorld (AS7594) ASPATH=7594 7593 65035 IGP

AS65350 at Paix from OurWorld (AS7594) ASPATH=7594 65350 7704 IGP

Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)

1. SPRINT (AS1239) at Mae-East 162205 + 38675 = 200880 BGP prefix updates
2. internetMCI (AS3561) at AADS 155814 + 20893 = 176707 BGP prefix updates
3. internetMCI (AS3561) at Mae-East 99294 + 19878 = 119172 BGP prefix updates
4. internetMCI (AS3561) at PacBell 61784 + 17771 = 79555 BGP prefix updates
5. BBNplanet (AS1) at Mae-East 30881 + 6725 = 37606 BGP prefix updates
6. VisiNet (AS6261) at Mae-East 30221 + 3038 = 33259 BGP prefix updates
7. BBNplanet (AS1) at Mae-West 23993 + 5700 = 29693 BGP prefix updates
8. ANS (AS1673) at Mae-East 20231 + 2358 = 22589 BGP prefix updates
9. MainStreet (AS3720) at Mae-West 42 + 22195 = 22237 BGP prefix updates
10. AGIS (AS4200) at Mae-East 11438 + 3325 = 14763 BGP prefix updates

Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)

1. SPRINT (1239) at mae-east 4077
2. internetMCI (3561) at pb 793
3. BBNplanet (1) at mae-west 546
4. Digex (2548) at mae-east 399
5. AGIS (4200) at mae-east 377
6. Grid (6113) at pb 337
7. IBMGlobal (2685) at mae-west 328
8. INAP.net (5646) at aads 217
9. CAIS (3491) at aads 167
10. NASA (297) at mae-west 128






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