Airwall Edge Service High Availability (HA)

High Availability (HA) Airwall Gateways provide hardware redundancy in a hot-standby mode. Airwall Gateways installed in an HA configuration maintain a heartbeat on a dedicated Ethernet link where only the current primary is participating in overlay network communications. If the primary fails to send heartbeat messages to the secondary, the secondary takes over overlay network communications for the HA pair.