From: k c (jwongccie@yahoo.com.hk)
Date: Sun May 01 2005 - 01:34:27 GMT-3
Hi Group,
R3 (AS64600, RR) ----R2 (AS64600, RR client)----R1(AS100)
R3 (sync must be on) annouce 3.0.0.0/8 in bgp and ospf to R2
In R2, prefix 3.0.0.0/8 cannot annouce to R1.
*May 1 18:46:08.528: BGP(0): no valid path for 3.0.0.0/8
However, 3.0.0.0/8 is received on R2 via ospf. Why "invalid path" appearred in debug message? Any hints?
Routing entry for 3.0.0.0/8
Known via "ospf 1", distance 110, metric 65, type inter area
Last update from 172.16.123.3 on Serial4/0, 00:15:55 ago
Routing Descriptor Blocks:
* 172.16.123.3, from 192.168.99.1, 00:15:55 ago, via Serial4/0
Route metric is 65, traffic share count is 1
R2#sh ip bgp
BGP table version is 21, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i3.0.0.0 172.16.123.3 0 100 0 i
*> 172.16.77.0/24 172.16.123.1 0 100 700 i
*> 192.168.100.0/22 172.16.123.1 0 0 100 700 ?
*> 192.168.104.0 172.16.123.1 0 100 700 ?
*> 192.168.105.0 172.16.123.1 0 100 700 ?
In R2, bgp syn must on.
router bgp 64600
synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
neighbor 172.16.123.1 remote-as 100
neighbor 172.16.123.3 remote-as 64600
no auto-summary
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This archive was generated by hypermail 2.1.4 : Fri Jun 03 2005 - 10:11:56 GMT-3