From: vignesh sethuraman (sethuvignesh@yahoo.co.in)
Date: Thu Jan 17 2008 - 11:04:31 ARST
Hello Experts,
I change the value of local preference as 300 for the route 155.1.5.0 received from the IBGP neighbor 155.1.13.1 on R3. This made the route to be removed from R1's bgp table.
Rack1R3#sh run | b router bgp
router bgp 2
no synchronization
bgp log-neighbor-changes
network 155.1.37.0 mask 255.255.255.0
neighbor 155.1.0.5 remote-as 1
neighbor 155.1.13.1 remote-as 2
neighbor 155.1.13.1 next-hop-self
neighbor 155.1.13.1 route-map bgp in
no auto-summary
!
route-map bgp permit 10
set local-preference 30
!
route-map bgp permit 20
Before changing the value of the local preference on R3:
Rack1R1#sh ip bgp
BGP table version is 12, local router ID is 150.1.1.1
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
* i155.1.5.0/24 155.1.13.3 0 100 0 1 i
*> 155.1.146.4 0 1 i
*>i155.1.37.0/24 155.1.13.3 0 100 0 i
After the changing the local preference value on R3:
Rack1R1#sh ip bgp
BGP table version is 10, local router ID is 150.1.1.1
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
*> 155.1.5.0/24 155.1.146.4 0 1 i
*>i155.1.37.0/24 155.1.13.3 0 100 0 i
Will the update made on R3 for the route received from R1 will be again send to R1.
Could you please anyone help me.
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