Technical data

Table Of Contents

240 Converged Enhanced Ethernet Command Reference

53-1002508-01

spanning-tree shutdown

Enables or disables Spanning Tree Protocol (STP) on the interface.

Synopsis spanning-tree shutdown

no spanning-tree shutdown

Operands None

Defaults Spanning Tree Protocol is not enabled.

Command

Modes

Interface configuration mode

Description Use this command to disable STP on the interface or VLAN. Use the no spanning-tree shutdown

command to enable STP on the interface or VLAN.

Once all of the interface ports have been configured for a VLAN, you can enable STP for all

members of the VLAN with a single command. Whichever protocol is currently selected is used by

the VLAN. Only one type of STP can be active at a time.

A physical interface port can be a member of multiple VLANs. For example, a physical port can be a

member of VLAN 100 and VLAN 55 simultaneously. In addition, VLAN 100 can have STP enabled

and VLAN 55 can have STP disabled simultaneously.

Usage

Guidelines

None

Examples To disable STP on a specific interface:

switch(config)#interface tengigabitethernet 0/1

switch(conf-if-te-0/1)#spanning-tree shutdown

To enable STP on VLAN 100 :

switch(config)#interface vlan 100

switch(conf-if-vl-100)#no spanning-tree shutdown