03/16/98 Internet Routing Problems

From: stats@merit.edu
Date: Tue Mar 17 1998 - 10:00:05 EST


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

Reserved Network and Host Announcements
---------------------------------------
191.255.0.0/30 at Mae-East from netrail (AS4006) ASPATH=4006 IGP
191.255.0.0/30 at Mae-East from netrail (AS4006) ASPATH=4006 IGP
198.80.116.192/27 at Mae-East from ANS (AS1673) ASPATH=1673 1670 IGP
198.80.116.192/27 at Mae-West from ANS (AS1673) ASPATH=1673 1670 IGP
198.80.116.192/27 at PacBell from ANS (AS1673) ASPATH=1673 1670 IGP
200.30.42.16/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.64/29 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.72/29 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
200.30.42.80/30 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
205.215.45.19/32 at Mae-East from netrail (AS4006) ASPATH=4006 IGP
206.84.149.20/32 at Mae-East from AGIS (AS4200) ASPATH=4200 IGP
209.88.14.0/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.14.128/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.14.240/28 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE
209.88.15.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 6371 7997 INCOMPLETE

Reserved AS Numbers
-------------------
AS65010 at Mae-East from ANS (AS1673) ASPATH=1673
AS64930 at Mae-East from Grid (AS6113) ASPATH=6113 6388 6388 6388 6388 701 1239 685 4134 4134 4134 64930 IGP

AS64810 at Mae-West from Grid (AS6113) ASPATH=6113 6197 6197 6197 6197 701 685 685 685 4134 64810 INCOMPLETE

AS65010 at Mae-West from Grid (AS6113) ASPATH=6113 6197 6197 6197 6197 701 1673
AS64930 at Mae-West from Grid (AS6113) ASPATH=6113 6197 6197 6197 6197 701 1239 685 4134 4134 4134 64930 IGP

AS64810 at PacBell from Grid (AS6113) ASPATH=6113 6197 6197 6197 6197 701 685 685 685 4134 64810 INCOMPLETE

AS65010 at PacBell from ANS (AS1673) ASPATH=1673
AS64930 at PacBell from Grid (AS6113) ASPATH=6113 6197 6197 6197 6197 701 1239 685 4134 4134 4134 64930 IGP

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

1. Grid (AS6113) at PacBell 155587 + 50492 = 206079 BGP prefix updates
2. internetMCI (AS3561) at AADS 165401 + 23905 = 189306 BGP prefix updates
3. Grid (AS6113) at Mae-West 130792 + 41191 = 171983 BGP prefix updates
4. SPRINT (AS1239) at Mae-East 103125 + 29155 = 132280 BGP prefix updates
5. internetMCI (AS3561) at Mae-East 78729 + 21996 = 100725 BGP prefix updates
6. internetMCI (AS3561) at PacBell 71507 + 24814 = 96321 BGP prefix updates
7. Grid (AS6113) at Mae-East 54450 + 13722 = 68172 BGP prefix updates
8. OurWorld (AS7594) at Mae-West 1903 + 49386 = 51289 BGP prefix updates
9. NASA (AS297) at Mae-East 437 + 49066 = 49503 BGP prefix updates
10. MainStreet (AS3720) at Mae-West 0 + 36053 = 36053 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 3937
2. internetMCI (3561) at pb 867
3. BBNplanet (1) at mae-west 364
4. AGIS (4200) at mae-east 353
5. Grid (6113) at pb 287
6. IBMGlobal (2685) at mae-east 246
7. Digex (2548) at mae-west 211
8. INAP.net (5646) at aads 145
9. AT&T (6478) at pb 142
10. CAIS (3491) at aads 135






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