BLADE OS™ ISCLI Reference HP GbE2c L2/L3 Ethernet Blade Switch Version 5.1 Advanced Functionality Software

BLADE OS 5.1 ISCLI Reference
BMD00115, August 2009 Chapter 4: Configuration Commands
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Common Internal Spanning Tree Configuration
Table 138 describes the commands used to configure Common Internal Spanning Tree (CIST)
parameters. The CIST provides compatibility with different MSTP regions and with devices
running different Spanning Tree instances. It is equivalent to Spanning Tree Group 0.
CIST Bridge Configuration
CIST bridge parameters are used only when the switch is in MSTP mode. CIST parameters do not
affect operation of STP/PVST+, RSTP, or PVRST.
Table 138 CIST Configuration Commands
Command Syntax and Usage
default spanning-tree mstp cist
Resets all CIST parameters to their default values.
Command mode: Global configuration
show spanning-tree mstp cist
Displays the current CIST configuration.
Command mode: All
Table 139 CIST Bridge Configuration Commands
Command Syntax and Usage
spanning-tree mstp cist-bridge priority <0-65535>
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 65535, in steps of 4096 (0, 4096, 8192...), and the default value is 61440.
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 reconfigures the MSTP network. The range is 6 to 40 seconds, and the default is 20
seconds.
Command mode: Global configuration