User's Manual

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Chapter 35 Configuring RSTP
35.1 RSTP Configuration Task List
 Enabling/disabling RSTP of the Switch
 Setting the Bridge Priority
 Setting the Forward Time
 Setting the Hello Time
 Setting the Max Age
 Value of the path cost of a port
 Setting the Port Priority
 Setting the Edge Port
 Setting the Port Connection Type
 Restarting the protocol conversion check
35.2 RSTP Configuration Tasks
35.2.1 Enabling/disabling RSTP of the Switch
Run the following commands in global configuration mode.
Command Purpose
spanning-tree mode rstp
Enables RSTP.
no spanning-tree mode
Disables stp funciton.
35.2.2 Settingthe Bridge Priority
The bridge priority decides whether this bridge can be chosen as the root bridge of the whole spanning tree.
Setting a comparatively low priority can make a bridge to be the root bridge of the spanning tree.
Run the following commands in global configuration mode.
Command Purpose
spanning-tree rstp priority
value Sets the priority of a bridge.
no spanning-tree rstp priority
Resumes the bridge priority to be the default
value.
It is especially noted that if the priorities of all bridges in an entire SWITCH network have the same value the
bridge with the smallest MAC address will be chosen as the root bridge. In case that RSTP is enabled, if the
bridge priority is changed the spanning tree will be calculated again.
In the default settings, the bridge priority is set to 32768.
35.2.3 Setting the Forward Time
Link fault will trigger the recalculation of the spanning-tree structure, but the new configuration information,
which is obtained through recalculation, cannot be sent to the whole network immediately; if the newly chosen