Static routing is just that static. If an interface goes down the route remains in the table and potentially black holes traffic.
Reliable static routing gets around this problem by only installing a static route based on the the state of a tracked object. By using this feature static routes in effect become dynamic!
R1 --------------- R3
On R1 I reate an sla monitor to track the reachability of the loopback on R3
ip sla monitor 1
type echo protocol ipIcmpEcho 184.108.40.206
ip sla monitor schedule 1 life forever start-time now
I then create a tacking object
track 1 rtr 1
Response Time Reporter 1 state
State is Up
5 changes, last change 00:00:02
Latest operation return code: OK
Latest RTT (millisecs) 1
I then create a reliable static route based on the status of the tracked object 1
ip route 220.127.116.11 255.255.255.255 10.0.0.3 55 track 1
The route only remains in the routing table as long as the loopback on R3 remains reachable.
Update: Virtual Switches in vSphere Environment
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