From: Hunt Lee (ciscoforme3@xxxxxxxxxxxx)
Date: Tue Jun 25 2002 - 04:18:57 GMT-3
Okay folks, I'm back as I have bummed into another problem last nite
=)
150.150.150.0/24---RTA ---RTB ---RTD---RTF
| |
RTC RTE
RTA, B, C, D, & E are in a Confederation called AS 1, in which:-
RTA is sub-AS 65530
RTB & RTC are both in sub-AS 65531
RTD & RTE are both in sub-AS 65532
RTF is in AS 2
RTB, C, D & E are running OSPF as IGP. And OSPF is being
redistributed into BGP at RTB.
The network i172.16.0.12/30 is being advertised into BGP by BGP
"network" command on RTD. i172.16.0.13 & .14 are the interfaces IP
for RTD & RTE.
Ok, here is the thing. RTC just can't see this link via BGP (it kept
on saying it's not sync), even though it is reachable via OSPF. With
OSPF, shouldn't BGP think that it is sync, and installs it as best
route?
Am I missing something here?
RouterC#sh ip bgp
BGP table version is 8, local router ID is 172.16.0.2
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i150.150.150.0/24 193.16.0.2 0 100 0 (65530) i
*>i172.16.0.0/30 172.16.0.1 0 100 0 ?
* i172.16.0.12/30 172.16.0.18 30 100 0 ?
*>i172.16.0.16/30 172.16.0.1 0 100 0 ?
*>i193.16.0.0/30 172.16.0.1 0 100 0 ?
* i193.16.0.8/30 172.16.0.18 0 100 0 (65532) i
RouterC#sh ip bgp 172.16.0.12/30
BGP routing table entry for 172.16.0.12/30, version 0
Paths: (1 available, no best path)
Not advertised to any peer
Local
172.16.0.18 (metric 128) from 172.16.0.1 (193.16.0.1)
Origin incomplete, metric 30, localpref 100, valid, internal,
not synchronized, ref 2
RouterC#sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B -
BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * -
candidate default U - per-user static route, o - ODR
Gateway of last resort is not set
172.16.0.0/30 is subnetted, 3 subnets
O 172.16.0.16 [110/128] via 172.16.0.1, 01:43:32, Serial1
O 172.16.0.12 [110/192] via 172.16.0.1, 01:43:32, Serial1 <--
but it is reachable via OSPF ??
C 172.16.0.0 is directly connected, Serial1
193.16.0.0/30 is subnetted, 1 subnets
O 193.16.0.0 [110/74] via 172.16.0.1, 01:43:32, Serial1
RouterC#
Thanks all!
H.
http://www.sold.com.au - SOLD.com.au
- Find yourself a bargain!
This archive was generated by hypermail 2.1.4 : Tue Jul 02 2002 - 08:12:41 GMT-3