3Com 8807 Command Reference Manual page 181

MSTP Configuration Commands 179
<SW8800>system-view
System View: return to User View with Ctrl+Z.
[SW8800]stp region-configuration
[3Com-mst-region] revision-level 5
stp Syntax
stp { enable | disable }
undo stp
View
System view, Ethernet port view
Parameter
enable: Enables global or port MSTP.
disable: Disables global or port MSTP.
Description
Use the stp command to enable or disable MSTP on a device or a port.
Use the undo stp command to restore the default MSTP state on a device or a
port.
By default, MSTP is disabled on the switch.
After MSTP is enabled, the switch determines to run MSTP in STP-compatible
mode or MSTP mode as per your configurations. The switch serves as a
transparent bridge after MSTP is disabled.
After MSTP is enabled, it will dynamically maintain the spanning tree state of the
corresponding VLAN according to the received configuration BPDU until it is
disabled. After MSTP is disabled, it will not maintain the state.
By default, global and port MSTP are disabled. When you enable MSTP on a device
or a port, both global and port MSTP are enabled; if you do not enable MSTP
globally, you will fail to use the stp enable command on a port.
Related command: stp mode, stp interface.
Example
# Enable MSTP globally.
<SW8800>system-view
System View: return to User View with Ctrl+Z.
[SW8800] stp enable
# Disable MSTP on Ethernet 2/1/1
<SW8800>system-view
System View: return to User View with Ctrl+Z.
[SW8800] interface Ethernet 2/1/1
[3Com-Ethernet 2/1/1] stp disable