GRE VPN related configuration problem
2020-10-16 02:58:14
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Problem Description
In GRE VPN, if the routing protocol is configured and Keepalive is not enabled, can the fault of device be detected?
Solution
Through its own timer or reliable transmission mechanism, the routing protocol can detect the failure of the opposite device and update the route in the routing table. So that the packets can be forwarded from other available paths. But the tunnel interface state will not change