I need some technical help for my network, please find the attached prototype network diagram for your better understanding....
Topology: Hub and spoke
1) RouterA02 running in pure standby mode, and only activate when RouterA01 down or RouterA01 tunnel 1 and tunnel 1001 down.
2) RouterA01 got two tunnels, but only tunnel 1 is in use and tunnel 1001 as a backup link.
3) When the both tunnel 1 and tunnel 1001 down for RouterA01, all the traffic (Incoming and Outgoing) should forward/go to RouterA02.
I am not sure whether my current configuration is correct or not, so I need your advice to correct me or advice me a best solution for this kind of network setup...thanks.
your configuration is now correct.
possible further tuning is to use delay on tunnel interfaces on A02 and core routers to A02 to make tunnels via A01 preferred.
check current delay with
sh interface tunnel
delay is expressed in tens of microseconds
<1-16777215> Throughput delay (tens of microseconds)
int tu x
Hope to help