750 Spanning Tree Commands
spanning-tree mode
Use the spanning-tree mode command in Global Configuration mode to
configure the spanning-tree protocol. To return to the default configuration,
use the no form of this command.
Syntax
spanning-tree mode {stp | rstp | mst}
no spanning-tree mode
•
stp
— Spanning Tree Protocol (STP) is enabled.
•
rstp
— Rapid Spanning Tree Protocol (RSTP) is enabled.
•
mst
— Multiple Spanning Tree Protocol (MSTP) is enabled.
Default Configuration
Rapid Spanning Tree Protocol (RSTP) is supported.
Command Mode
Global Configuration mode
User Guidelines
In RSTP mode, the switch would use STP when the neighbor switch is using
STP. In MSTP mode, the switch would use RSTP when the neighbor switch is
using RSTP and would use STP when the neighbor switch is using STP.
Example
The following example configures the spanning-tree protocol to MSTP.
console(config)#spanning-tree mode mst
spanning-tree mst configuration
Use the spanning-tree mst configuration command in Global Configuration
mode to enable configuring an MST region by entering the multiple
spanning-tree (MST) mode.
2CSPC4.XCT-SWUM2XX1.book Page 750 Monday, October 3, 2011 11:05 AM