spanning-tree mode pvstspanning-tree extend system-id The above lines of configuration appear seemingly by default in my IE-3000 switch configurations.  I have ran the no command on both lines but cannot seem to remove them.  Can anyone offer any adv...

I have 2-off IE-3000-4TC access switches and a stacked 3750X in a REP ring with the following configuration; 3750X rep admin vlan 31int gi1/0/1switchport mode trunkswitchport trunk native vlan 31rep segment 1 edge primary int gi2/0/1switchport mode ...