3Com MSR 50, MSR 30 manual Stp region-configuration, Stp root primary

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stp region-configuration

Syntax	stp region-configuration
	undo stp region-configuration
View	System view
Parameters	None
Description	Use the stp region-configurationcommand to enter MST region view.
	Use the undo stp region-configurationcommand to restore the default MST
	region configurations.
	By default, the default settings are used for all the three MST region parameters.
	Namely, the device’s MST region name is the device’s MAC address, all VLANs are
	mapped to the CIST, and the MSTP revision level is 0.
	After you enter MST region view, you can configure the parameters related the
	MST region, including the region name, VLAN-to-instance mapping and revision
	level.
Examples	# Enter MST region view.
	<Sysname> system-view
	[Sysname] stp region-configuration
	[Sysname-mst-region]

stp root primary

Syntax	stp [ instance instance-id] root primary
	undo stp [ instance instance-id] root
View	System view
Parameters	instance instance-id: MST instance ID, in the range of 0 to 15. MST instance 0
	represents the CIST.
Description	Use the stp root primary command to specify the current device as the root
	bridge of the specified MST instance.
	Use the undo stp root command to remove the current device as the root bridge
	of the specified MST instance.
	By default, a device is not a root bridge.
	Note that: