In a multi-active DC, the inter-DC cluster (referred to as cluster) function ensures non-stop services even if a FW fails because other FWs in the DC can smoothly take over the work on the faulty FW.
As an independent hello protocol, BFD implements low-overhead and rapid fault detection. By interworking with upper-layer protocols, BFD enables them to rapidly identify and recover from faults.
The hardware bypass function can be enabled to avoid network communication interruption caused by power loss or system reboot of the device and improve network reliability. The hardware bypass function requires a pair of bypass interfaces.