09/08/97 Internet Routing Problems

From: stats@merit.edu
Date: Tue Sep 09 1997 - 10:00:02 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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collection research efforts.

Reserved Network and Host Announcements
---------------------------------------
10/8 at Mae-West from DISA (AS568) ASPATH=568 400 Incomplete
192.116.206.80/28 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.116.207.48/28 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.168.50/24 at Mae-East from NetAxs (AS4969) ASPATH=4969 7772 Incomplete
192.221.5.240/29 at Mae-East from BBNplanet (AS1) ASPATH=1 IGP
195.204.43.0/27 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 3301 5381 IGP
195.204.43.32/27 at Mae-East from telia (AS1299) ASPATH=1299 1299 1299 3301 5381 IGP
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at Mae-West from Grid (AS6113) ASPATH=6113 IGP
206.80.170.204/30 at PacBell from Grid (AS6113) ASPATH=6113 IGP
207.227.0.216/30 at Mae-East from DREN (AS668) ASPATH=668 7170 5646 38 IGP

Reserved AS Numbers
-------------------
AS65077 at Mae-East from internetMCI (AS3561) ASPATH=3561 4618 3836 65077 Incomplete

AS65531 at Mae-East from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65532 at Mae-East from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65533 at Mae-East from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65534 at Mae-East from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65531 at Mae-West from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65532 at Mae-West from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65533 at Mae-West from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65534 at Mae-West from BBNplanet (AS1) ASPATH=1 1842 1842 65531 65532 65533 65534 IGP

AS65077 at AADS from internetMCI (AS3561) ASPATH=3561 4618 3836 65077 Incomplete

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

1. idc (AS4694) at Mae-West 23 + 137594 = 137617 BGP prefix updates
2. internetMCI (AS3561) at AADS 23941 + 98379 = 122320 BGP prefix updates
3. Grid (AS6113) at PacBell 434 + 120420 = 120854 BGP prefix updates
4. Grid (AS6113) at Mae-East 454 + 120298 = 120752 BGP prefix updates
5. Grid (AS6113) at Mae-West 434 + 120274 = 120708 BGP prefix updates
6. NetKonect (AS6716) at Mae-East 5 + 103162 = 103167 BGP prefix updates
7. DISA (AS568) at Mae-West 5934 + 90412 = 96346 BGP prefix updates
8. USCyber (AS4136) at Mae-East 0 + 74203 = 74203 BGP prefix updates
9. Interpath (AS3407) at Mae-East 2 + 72617 = 72619 BGP prefix updates
10. SPRINT (AS1239) at Mae-East 48690 + 17175 = 65865 BGP prefix updates

Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)

1. Euro(AS5390) at Mae-East 26.00 (26 ann, 1 entries)
2. GoodNet(AS5696) at AADS 16.48 (4632 ann, 281 entries)
3. GoodNet(AS5696) at Mae-West 15.33 (4691 ann, 306 entries)
4. (AS7170) at Mae-East 13.69 (657 ann, 48 entries)
5. conxion(AS4544) at Mae-West 11.67 (35 ann, 3 entries)
6. DREN(AS668) at Mae-East 10.97 (2226 ann, 203 entries)
7. CWIX(AS5683) at Mae-West 10.14 (12891 ann, 1271 entries)
8. GoodNet(AS5696) at Mae-East 9.72 (2956 ann, 304 entries)
9. CWIX(AS5683) at Mae-East 9.53 (12044 ann, 1264 entries)
10. CWIX(AS5683) at Mae-West 9.42 (11970 ann, 1271 entries)
11. CWIX(AS5683) at Mae-East 9.33 (11797 ann, 1264 entries)
12. Digex(AS2548) at Mae-East 7.58 (4610 ann, 608 entries)
13. INS(AS6660) at Mae-East 6.99 (496 ann, 71 entries)
14. DISA(AS568) at Mae-West 6.38 (5288 ann, 829 entries)
15. Digex(AS2548) at Mae-West 6.22 (3792 ann, 610 entries)
16. DREN(AS668) at Mae-West 6.04 (1257 ann, 208 entries)
17. Dialnet(AS5552) at Mae-East 5.88 (453 ann, 77 entries)
18. Grid(AS6113) at PacBell 5.85 (4731 ann, 809 entries)
19. INSnet(AS5378) at Mae-East 5.63 (383 ann, 68 entries)
20. InterAccess(AS3789) at AADS 5.47 (104 ann, 19 entries)

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

1. SPRINT (1239) at mae-east 3505
2. internetMCI (3561) at mae-east 759
3. AGIS (4200) at mae-east 449
4. BBNplanet (1) at mae-west 414
5. Grid (6113) at pb 294
6. CWIX (5683) at mae-west 147
7. CAIS (3491) at aads 133
8. Digex (2548) at mae-west 127
9. EUnet (286) at mae-east 126
10. NASA (297) at mae-west 121






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