I thought I'd pick your collective brains on an interesting little puzzle.
I have a VRF running on a 6500 series switch. This currently has a static route pointing to a firewall (that will not participate in a dynamic routing protocol) to get to a desired destination.
We now need to implement a dynamic resilient alternative route to the same destination.
This alternative route is learnt via OSPF from another router. This route is only to be used in the event of a primary route failure.
Under normal circumstances the primary route, being static, has a lower admin distance and therefore takes priority.
I can detect a failure using IP SLA, however is it possible to be able to react to this and disable/remove the static route?
The interface the static route points out of will not drop, as I am looking to accomodate for an upstream failure.
dialer-watch will not appear to help me in this instance, as my redundant route is not a dial-interface (is it possible to make a VPN tunnel a dial interface?)
I am also seeking to avoid manual interventation (rather than the current delays of realise fault -> logon to switch -> remove static route.)
You might want to see if http://www.cisco.com/en/US/docs/ios/12_3/12_3x/12_3xe/feature/guide/dbackupx.html or http://www.cisco.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/fthsrptk.html might help.