Reference Guide

no spanning-tree port mode
This command sets the Administrative Switch Port State for this port to disabled, disabling the port for
use by spanning tree.
Format no spanning-tree port mode
Mode Interface Config
spanning-tree port mode all
This command sets the Administrative Switch Port State for all ports to enabled.
Default Enabled
Format spanning-tree port mode all
Mode Global Config
no spanning-tree port mode all
This command sets the Administrative Switch Port State for all ports to disabled.
Format
no spanning-tree port mode all
Mode Global Config
spanning-tree port-priority
Use this command to change the priority value of the port to allow the operator to select the relative
importance of the port in the forwarding process. Set this value to a lower number to prefer a port for
forwarding of frames.
All LAN ports have 128 as priority value by default. PVSTP/PVRSTP puts the LAN port with the lowest
LAN port number in the forwarding state and blocks other LAN ports.
The application uses the port priority value when the LAN port is configured as an edge port.
Default
Enabled
Format spanning-tree port-priority 0-240
Mode Interface Config
spanning-tree tcnguard
Use this command to enable TCN guard on the interface. When enabled, TCN Guard restricts the
interface from propagating any topology change information received through that interface.
Switching Commands
ExtremeSwitching 200 Series: Command Reference Guide for version 01 .02.04.0007 296