Configurable interval and threshold values for IKEv2 dead peer detection

You can set the dead peer detection (DPD) interval and threshold options in IPsec rules for IKEv2 security associations. The interval is the amount of time that the peer waits for traffic from its destination peer before sending a DPD request packet, and the threshold is the maximum number of unsuccessful DPD requests to be sent before the peer is considered unavailable.