AMX NXA-ENET24 Instruction Manual page 138

Configuring the Switch
Web – Click Spanning Tree, STA Information.
FIG. 69 Displaying the Spanning Tree Algorithm
CLI – This command displays global STA settings, followed by settings for each port.
The current root port and current root cost display as zero when this device is not
connected to the network.
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Root Forward Delay – The maximum time (in seconds) this device will wait before
changing states (i.e., discarding to learning to forwarding). This delay is required because
every device must receive information about topology changes before it starts to forward
frames. In addition, each port needs time to listen for conflicting information that would
make it return to a discarding state; otherwise, temporary data loops might result.
Transmission limit – The minimum interval between the transmission of consecutive
RSTP BPDUs.
Path Cost Method – The path cost is used to determine the best path between devices.
The path cost method is used to determine the range of values that can be assigned to
each interface.
NXA-ENET Software Management Guide