L2L VPN as backup

[gpinero]

Hi all, i'm trying to configure a L2L vpn as backup.

1 - Now I have tunnel L2L working between Fortigate-ASA, and apply secondary route as backup of the principal (higher value that is lower priority). 

My problem is when principal access goes down the tunnel not bring up automatically. There is any way to apply health check to a destination and when this healt goes down the tunnel brings up?

Thanks

[gpinero]

Basically this is the solution:

config system link-monitor

 edit "1"

    set srcintf "l2l"

    set server "ip to track"

    set update-cascade-interface disable

  next

end

Regards.