What is the recommended HA architecture for vEdge devices, and how is failover achieved?

• A. Active/Passive HA (or Active/Active where supported) with synchronized state; dual uplinks and redundant connections to vSmart/vBond; failover is heartbeat and state sync
• B. Standalone
• C. 3-way mirror
• D. ADP

Answer: (A)

High availability for vEdge relies on an active/Passive pair (or active/Active where supported) with synchronized state. In this setup, both devices are connected to the SD-WAN controllers via dual uplinks to vSmart and vBond, creating redundancy for both the data path and the control plane. The failover mechanism uses a heartbeat to detect a failure quickly and state synchronization to keep the standby up to date with the active device’s tunnel, VPN, and policy state. When the active device fails, the standby takes over using the latest synchronized state, preserving existing sessions and minimizing disruption.

Standalone lacks redundancy, so there’s no automatic failover. A 3-way mirror isn’t the vEdge HA approach, and ADP isn’t the HA architecture used for vEdge devices.