58 Dell Converged Enhanced Ethernet Administrator’s Guide53-1002116-01Configuring STP, RSTP, or MSTP on CEE interface ports6To restart the protocol migration process, perform the following tasks from Privileged EXEC mode.1. Enter the appropriate form of the clear command based on what you want to clear:• To clear all spanning tree counters on all interfaces:switch#clear spanning-tree detected-protocols• To clear the spanning tree counters associated with a specific port-channel or CEE portinterface:switch#clear spanning-tree detected-protocols interfaceintengigabitethernet 0/1Displaying STP, RSTP, and MSTP-related informationTo display STP, RSTP, and MSTP-related information, perform the following tasks from PrivilegedEXEC mode.1. Enter the show spanning tree command to display all STP, RSTP, and MSTP-related information.switch#show spanning-tree briefConfiguring STP, RSTP, or MSTP on CEE interface portsThis section details the commands for enabling and configuring STP, RSTP, or MSTP on individual10-Gigabit Ethernet CEE interface ports on Dell FCoE hardware.Enabling automatic edge detectionFrom the CEE interface, use this command to automatically identify the edge port. The port canbecome an edge port if no BPDU is received. By default, automatic edge detection is disabled.To enable automatic edge detection on the CEE interface, perform the following steps fromPrivileged EXEC mode.1. Enter the configure terminal command to access global configuration mode.2. Enter the interface command to specify the CEE interface type and slot/port number.switch(config)#interface intengigabitethernet 0/13. Enter the no shutdown command to enable the CEE interface.4. Enter the spanning-tree command to enable automatic edge detection on the CEE interface.switch(conf-if-te-0/1)#spanning-tree autoedgeConfiguring the path costFrom the CEE interface, use this command to configure the path cost for spanning treecalculations. The lower the path cost means there is a greater chance of the interface becomingthe root. The range is 1 through 200000000. The default path cost is 2000.