10-14-2004 03:15 AM - edited 03-02-2019 07:15 PM
I have two local routers each with a BGP neighbor relationship with a different service provider. Each SP has a neighbor adjacency with a router at one of my remote sites (the same site). When one of the links fails BGP routes across the other SP network to the remote site, however when the link returns the route is not reinstated and I have to clear bgp * in order to force the best route. Anyone any ideas?
10-14-2004 03:39 AM
10-14-2004 07:58 AM
Local routers:
router bgp 64523
no synchronization
bgp log-neighbor-changes
network 10.92.0.0 mask 255.255.0.0
aggregate-address 10.92.30.0 255.255.255.0 summary-only
aggregate-address 10.92.31.0 255.255.255.0 summary-only
redistribute eigrp 30
neighbor 81.144.126.16 remote-as 2856
neighbor 81.144.126.16 ebgp-multihop 2
neighbor 81.144.126.16 update-source Loopback0
neighbor 81.144.126.16 distribute-list bgp-out-line1 out
neighbor 81.144.126.146 remote-as 2856
neighbor 81.144.126.146 ebgp-multihop 2
neighbor 81.144.126.146 update-source Loopback0
neighbor 81.144.126.146 distribute-list bgp-out-line2 out
maximum-paths 2
no auto-summary
router bgp 6
no synchronization
bgp log-neighbor-changes
network 10.92.30.0 mask 255.255.252.0
aggregate-address 10.92.30.0 255.255.255.0 summary-only
aggregate-address 10.92.31.0 255.255.255.0 summary-only
redistribute connected
neighbor 206.155.19.85 remote-as 65000
no auto-summary
Remote Routers:
router bgp 64521
no synchronization
bgp log-neighbor-changes
network 10.92.0.0 mask 255.255.0.0
aggregate-address 10.0.0.0 255.0.0.0 summary-only
aggregate-address 139.61.0.0 255.255.0.0 summary-only
aggregate-address 198.160.96.0 255.255.240.0 summary-only
redistribute eigrp 10
neighbor 81.144.126.250 remote-as 2856
neighbor 81.144.126.250 ebgp-multihop 2
neighbor 81.144.126.250 update-source Loopback0
neighbor 81.144.126.250 distribute-list bgp-out-line2 out
neighbor 81.144.126.251 remote-as 2856
neighbor 81.144.126.251 ebgp-multihop 2
neighbor 81.144.126.251 update-source Loopback0
neighbor 81.144.126.251 default-originate
neighbor 81.144.126.251 distribute-list bgp-out-line1 out
maximum-paths 2
no auto-summary
router bgp 5
no synchronization
bgp log-neighbor-changes
network 10.92.0.0 mask 255.255.0.0
aggregate-address 10.0.0.0 255.0.0.0 summary-only
aggregate-address 139.61.0.0 255.255.0.0 summary-only
aggregate-address 198.160.96.0 255.255.240.0 summary-only
redistribute connected
redistribute static
redistribute eigrp 10
neighbor 159.24.207.49 remote-as 65000
neighbor 159.24.207.49 default-originate
neighbor 159.24.207.49 distribute-list bgp-out out
no auto-summary
AS 64521 is the one I have to reset to reinstate the best route
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