Configuration Commands
Common Internal Spanning Tree configuration
The Common Internal Spanning Tree (CIST) provides compatibility with different MSTP regions and with devices running different Spanning Tree instances. It is equivalent to Spanning Tree Group 0.
The following table describes the commands used to configure CIST commands. Table 105 CIST Configuration commands
Command | Description |
|
|
default
show
Adds VLANs to the CIST. Enter one VLAN per line, and press Enter to add the VLANs.
Command mode: Global configuration
Resets all CIST parameters to their default values. Command mode: Global configuration
Displays the current CIST configuration.
Command mode: All
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.
The following table describes the commands used to configure CIST Bridge Configuration commands. Table 106 CIST Bridge Configuration commands
Command | Description |
|
|
| Configures the CIST bridge priority. The bridge priority parameter |
bridge priority | 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, and the default |
| is 32768. |
| This command does not apply to RSTP. See the "Bridge Spanning Tree |
| configuration" section for more information. |
| Command mode: Global configuration |
|
|
Configures the CIST bridge maximum age. The maximum age parameter | |
bridge | 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. |
| This command does not apply to RSTP. See the "Bridge Spanning Tree |
| configuration" section for more information. |
| Command mode: Global configuration |
|
|
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