Technical data

RackSwitch G8124 Command Reference
142
 Chapter 4: Configuration Commands BMD00076, January 2009
CIST Bridge Configuration
CIST bridge parameters are used only when the switch is in MSTP mode. CIST parameters do
not affect operation of RSTP/PVRST+.
Table 4-31 CIST Bridge Configuration Commands
Command Syntax and Usage
spanning-tree mstp cist-bridge priority <0-61440 in steps of 4096>
Configures the CIST bridge priority. The bridge priority parameter controls which bridge on the
network is the MSTP root bridge. To make this switch the root bridge, configure the bridge priority
lower than all other switches and bridges on your network. The lower the value, the higher the
bridge priority. The range is 0 to 61440, and the default is 32768.
This command does not apply to RSTP.
Command mode: Global configuration
spanning-tree mstp cist-bridge maximum-age <6-40>
Configures the CIST bridge maximum age. The maximum age parameter specifies the maximum
time the bridge waits without receiving a configuration bridge protocol data unit before it reconfig-
ures the MSTP network. The range is 6 to 40 seconds, and the default is 20 seconds.
This command does not apply to RSTP.
Command mode: Global configuration
spanning-tree mstp cist-bridge forward-delay <4-30>
Configures the CIST bridge forward delay parameter, in seconds. The forward delay parameter
specifies the amount of time that a bridge port has to wait before it changes from the listening state
to the discarding state and from the learning state to the forwarding state. The default value is 15
seconds. This command does not apply to RSTP.
Command mode: Global configuration
show spanning-tree mstp cist
Displays the current CIST bridge configuration.
Command mode: All Except User EXEC