Differences Between Hubs and Gateways
A gateway is solely responsible for network connectivity.
Based on this, a hub manages local operations among devices.
Differences Among Hubs
There is only one primary hub—by definition, the main hub.
If the primary hub fails, the backup hub takes over; if the primary hub remains operational, the backup hub can still share its workload to expand the scope of hub control.
Differences Among Gateways
A secondary gateway functions similarly to a backup hub.
A blind gateway can only handle network connectivity.