Thanks much Edison. I was thinking about using as-path prepend.
router bgp 65429
no synchronization
bgp log-neighbor-changes
network 208.x.x.x
timers bgp 15 30
neighbor ISP_1 peer-group
neighbor ISP_1 remote-as 1111
neighbor ISP_1 descr BACKUP ISP
neighbor ISP_1 soft-reconfiguration inbound
neighbor ISP_1 route-map ISP_1-Default in
neighbor ISP_1 route-map Route-Out-ISP_1 out
neighbor ISP_1 filter-list 50 in
neighbor ISP_2 peer-group
neighbor ISP_2 remote-as 2222
neighbor ISP_2 desc PRIMARY ISP
neighbor ISP_2 soft-reconfiguration inbound
neighbor ISP_2 route-map ISP_2-Default in
neighbor ISP_2 route-map Route-Out-ISP_2 out
neighbor ISP_2 filter-list 51 in
neighbor 206.x.x.x peer-group ISP_2
neighbor 208.x.x.81 peer-group ISP_1
neighbor 208.x.x.82 peer-group ISP_1
maximum-paths 2
no auto-summary
route-map ISP_2-out permit 10
set metric 20
!
route-map ISP_1-Default permit 10
set local-preference 200
!
route-map ISP_1-out permit 10
set metric 10
!
route-map ISP_2-Default permit 10
set local-preference 300
!
route-map Route-Out permit 10
match ip address prefix-list LIST_Out
!
route-map Route-Out-ISP_1 permit 10
match ip address prefix-list LIST_Out
!
route-map Route-Out-ISP_2 permit 10
match ip address prefix-list LIST_out
!
route-map Route-Out-ISP_1 permit 20
set as-path prepend 65429 65429 65429
