Switchover to the Active Uplink Port

When a failed active uplink port becomes available again, switchover from the redundant port to the active uplink port is delayed by 30 seconds. The delay allows the remote port to transition to forwarding mode using the standard STP rules. After 30 seconds, the blocked active uplink port begins forwarding in just one second and the redundant port is blocked.

Note: Use caution when changing the spanning tree priority. If the switch becomes the root bridge, Fast Uplink Span will be disabled automatically.
Parent topic: Fast Uplink Span