PLANET WGSW-50040 - Manual (Page 164)

Command mode:
Port Mode
Default:
The port is in the MSTP mode by default.
Usage Guide:
If a network which is attached to the current port is running IEEE 802.1D STP, the port converts itself
to run in STP mode. The command is used to force the port to run in the MSTP mode. But once the
port receives STP messages, it changes to work in the STP mode again.
This command can only be used when the switch is running in IEEE802.1s MSTP mode. If the
switch is running in IEEE802.1D STP mode, this command is invalid.
Example:
Force the port 1/2 to run in the MSTP mode.
Switch(Config-If-Ethernet1/2)#spanning-tree mcheck
9.1.13 spanning-tree mode
Command:
spanning-tree mode {mstp | stp | rstp}
no spanning-tree mode
Function:
Set the spanning-tree mode in the switch; The command “no spanning-tree mode” restores the
default setting.
Parameter:
mstp sets the switch in IEEE802.1s MSTP mode;
stp sets the switch in IEEE802.1D STP mode;
rstp sets the switch in IEEE802.1D RSTP mode.
Command mode:
Global Mode
Default:
The switch is in the MSTP mode by default.
Usage Guide:
When the switch is in IEEE802.1D STP mode, it only sends standard IEEE802.1D BPDU and TCN
BPDU. It drops any MSTP BPDUs.
Example:
Set the switch in the STP mode.
Switch(config)#spanning-tree mode stp