OK this may be a simple question. I have a pair couple of sites that have both a TLS fiber and a T1 connection back to the main site and I am trying to get them to fail over just on static routing and it is not working. Both devices are 2811 ISR routers. I have 2 static routes on the router with different metrics and it just won't fail over. Do I have to have a routing protocol like EIGRP or OSPF enabled to have a route failover?
As you've seen from the result of your test, the route does not get withdrawn from the table as the physical interface remains up/up.
You either need to implement dynamic routing protocol on this link (my preferred suggestion) or incorporate IP SLA on this configuration and track the remote IP address for reachability. If the reachability is down, the IP SLA will remove the primary route and the secondary static route will be used.
The following is a good write-up of how this configuration should be done:
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