H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 184)

22-15
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IEEE 802.1D: spanning tree protocol
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IEEE 802.1w: rapid spanning tree protocol
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IEEE 802.1s: multiple spanning tree protocol
Configuring Root Bridge
Complete the following tasks to configure a root bridge:
Task Remarks
Enabling MSTP
Required
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
Bridge/Secondary Root Bridge
Required
Configuring the Bridge Priority of the Current Device
Optional
The priority of a device cannot be changed after the
device is specified as the root bridge or a secondary
root bridge.
Configuring the Mode a Port Recognizes and Sends
MSTP Packets
Optional
Configuring the MSTP Operation Mode Optional
Configuring the Maximum Hop Count of an MST
Region
Optional
Configuring the Network Diameter of the Switched
Network Optional
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 on the
Current Port
Optional
The default value is recommended.
Configuring the Current Port as an Edge Port Optional
Specifying Whether the Link Connected to a Port Is
Point-to-point Link
Optional
In a network containing devices with both GVRP and MSTP enabled, GVRP packets are forwarded
along the CIST. If you want to advertise packets of a specific VLAN through GVRP, be sure to map the
VLAN to the CIST when configuring the MSTP VLAN mapping table (the CIST of a network is spanning
tree instance 0).