ISDN backup with Frame Relay

[richardfu]

ISDN line can going up when the Frame Relay is down, but when the Frame Relay coming back, the ISDN could not going down automatically, AS5350 lost OSPF from router, and established static route. When manually deleted the static route, ISDN then going down and network working on Frame Relay. The AS5350 is running c5350-is-mz.123-11.T10.bin. any idea for this issue?

Thanks

[Harold Ritter]

Are you running ospf over the isdn connection? Why not just a static route with a higher admin distance.

If the static is configured with a higher admin distance, the traffic should prefer the ospf route once the frame-relay comes backup and the isdn should time out and disconnect.

Hope this helps,