3com 3CRUS2475 Manuale Utente

C

HAPTER

 15: S

PANNING

-T

REE

 C

OMMANDS

no spanning-tree mode

■

stp — Indicates that the Spanning Tree Protocol (STP) is enabled.

■

rstp — Indicates that the Rapid Spanning Tree Protocol (RSTP) is 
enabled.

■

mstp — Indicates that the Multiple Spanning Tree Protocol (RSTP) is 
enabled.

STP is enabled.

Global Configuration mode

In RSTP mode, the device uses STP when the neighbor device uses STP. 

In MSTP mode, the device uses RSTP when the neighbor device uses RSTP 
and uses STP when the neighbor device uses STP.

The following example configures the spanning-tree protocol to RSTP.

The spanning-tree forward-time Global Configuration mode 
command configures the spanning-tree bridge forward time, which is the 
amount of time a port remains in the listening and learning states before 
entering the forwarding state. To restore the default configuration, use 
the no form of this command.

spanning-tree forward-time seconds

no spanning-tree forward-time

■

seconds — Time in seconds. (Range: 4-30)

console(config)# spanning-tree mode rstp