Chapter 29  MSTP Commands 
MSTP (Multiple Spanning Tree Protocol), compatible with both STP and RSTP and subject to 
IEEE 802.1s, can disbranch a ring network. STP is to block redundant links and backup links as 
well as optimize paths. 
29.1  spanning-tree(global) 
Description 
The  spanning-tree  command is used to enable STP function globally. To 
disable the STP function, please use no spanning-tree command. 
Syntax 
spanning-tree 
no spanning-tree   
Command Mode 
Global Configuration Mode 
Privilege Requirement 
Only Admin, Operator and Power User level users have access to these 
commands. 
Example 
Enable the STP function: 
T2500G-10TS(config)# spanning-tree 
29.2  spanning-tree(interface) 
Description 
The  spanning-tree  command is used to enable STP function for a port. To 
disable the STP function, please use no spanning-tree command. 
Syntax 
spanning-tree 
no spanning-tree   
Command Mode 
Interface Configuration Mode (interface gigabitEthernet / interface range 
gigabitEthernet) 
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