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Command: revision-level <level>
no revision-level
Function: In MSTP region mode, this command is to set revision level for MSTP
configuration; The command “no revision-level” restores the default setting to 0.
Parameter: <level> is revision level. The valid range is from 0 to 65535.
Command mode: MSTP Region Mode
Default: The default revision level is 0.
Usage Guide: This command is to set revision level for MSTP configuration. The bridges
with same MSTP revision level and same other attributes are considered in the same
MSTP region.
Example: Set revision level to 2000。
Switch(Config)#spanning-tree mst configuration
Switch(Config-Mstp-Region)# revision-level 2000
6.2.2.6 spanning-tree
Command: spanning-tree
no spanning-tree
Function: Enable MSTP in global mode and in interface mode; The command “no
spanning-tree” is to disable MSTP.
Command mode: Global Mode and Interface Mode
Default: MSTP is not enabled by default.
Usage Guide: If the MSTP is enabled in global mode, the MSTP is enabled in all the ports
except for the ports which are set to disable the MSTP explicitly.
Example: Enable the MSTP in global mode, and disable the MSTP in the interface 1/2.
Switch(Config)#spanning-tree
Switch(Config)#interface ethernet 1/2
Switch(Config-Ethernet1/2)#no spanning-tree
6.2.2.7 spanning-tree forward-time
Command: spanning-tree forward-time <time>
no spanning-tree forward-time
Function: Set the switch forward delay time; The command “no spanning-tree
forward-time” restores the default setting.
Parameter: <time> is forward delay time in seconds. The valid range is from 4 to 30.
Command mode: Global Mode
Default: The forward delay time is 15 seconds by default.
Usage Guide: When the network topology changes, the status of the port is changed from