Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 849

NOTE: This command should be used with care. An interface with portfast mode enabled is moved directly to the spanning tree forwarding state when linkup occurs without waiting for the standard forward-time delay. Setting a port connected to another switch into portfast mode may cause an accidental topology loop and disrupt switch and network operations. Example The following example enables portfast mode on all access ports. console(config)#spanning-tree portfast default spanning-tree port-priority (Interface Configuration) Use the spanning-tree port-priority command in Interface Configuration mode to configure the priority value of an edge-port or point-to-point interface to allow the operator to select the relative importance of the interface in the selection process for forwarding. Set this value to a lower number to prefer an operationally enabled interface for forwarding of frames. Use the no form of the command to return the priority to the default value. Syntax spanning-tree [vlan vlan-id] port-priority priority no spanning-tree [vlan vlan-id] port-priority • vlan-id - An optional parameter specifying the VLAN to which the priority applies when the port is configured as an edge-port. Range 1-4093. • priority - The priority of the edge-port or point-to-point link in the forwarding port selection process. Range is 0 to 240 in increments of 16. Default Configuration The default port-priority for IEEE STP is 128. Command Mode Interface Configuration mode Layer 2 Switching Commands 849