Reference Guide

Command Mode
CONFIGURATION
INTERFACE
Example
OS10(config)# interface ethernet 1/1/4
OS10(config-if-eth1/1/4)# spanning-tree disable
Supported
Releases
10.3.0E or later
spanning-tree guard
Enables or disables loop guard or root guard on an interface.
Syntax
spanning-tree guard {loop | root | none}
Parameters
● loop — Enables loop guard on an interface.
● root — Enables root guard on an interface.
● none — Sets the guard mode to none.
Default Not configured
Usage
Information
Root guard and loop guard configurations are mutually exclusive. Configuring one overwrites the other
from the active configuration.
Command Mode INTERFACE
Example
OS10(conf-if-eth1/1/4)# spanning-tree guard root
Supported
Releases
10.2.0E or later
spanning-tree mode
Enables an STP type (RSTP, Rapid-PVST+, or MST).
Syntax
spanning-tree mode {rstp | mst | rapid-pvst}
Parameters
● rstp — Sets the STP mode to RSTP.
● mst — Sets the STP mode to MST.
● rapid-pvst — Sets the STP mode to RPVST+.
Default RPVST+
Command Mode CONFIGURATION
Usage
Information
All STP instances are stopped in the previous STP mode, and are restarted in the new mode. You can also
change to RSTP/MST mode.
Example (RSTP)
OS10(config)# spanning-tree mode rstp
Example (MST)
OS10(config)# spanning-tree mode mst
Supported
Releases
10.2.0E or later
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