3Com WX3000 operation manual Configuring Root Bridge, STP-related Standards

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BPDU guard Loop guard

TC-BPDU attack guard BPDU packet drop

STP-related Standards

STP-related standards include the following.

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IEEE 802.1D: spanning tree protocol

IEEE 802.1w: rapid spanning tree protocol

IEEE 802.1s: multiple spanning tree protocol

Configuring Root Bridge

Complete the following tasks to configure a root bridge:

Task	Remarks
	Required
Enabling MSTP	To prevent network topology jitter caused by
	other related configurations, you are
	recommended to enable MSTP after other
	related configurations are performed.
Configuring an MST Region	Required
Specifying the Current Device as a Root	Required
Bridge/Secondary Root Bridge
	Optional
Configuring the Bridge Priority of the Current	The priority of a device cannot be changed after
Device	the device is specified as the root bridge or a
	secondary root bridge.
Configuring the Mode a Port Recognizes and	Optional
Sends MSTP Packets
Configuring the MSTP Operation Mode	Optional
Configuring the Maximum Hop Count of an MST	Optional
Region
Configuring the Network Diameter of the	Optional
Switched Network	The default value is recommended.
Configuring the MSTP Time-related Parameters	Optional
	The default values are recommended.
Configuring the Timeout Time Factor	Optional
Configuring the Maximum Transmitting Speed	Optional
on the Current Port	The default value is recommended.
Configuring the Current Port as an Edge Port	Optional
Specifying Whether the Link Connected to a Port	Optional
Is Point-to-point Link

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