Multiple Instance Spanning-Tree Operation

802.1s Multiple Spanning Tree Protocol (MSTP)

Syntax: [no] spanning-tree config-name < ascii-string>

This command resets the configuration name of the MST region in which the switch resides. This name can include up to 32 non-blank characters and is case-sensitive. On all switches within a given MST region, the configuration names must be identical. Thus, if you want more than one MSTP switch in the same MST region, you must configure the identical region name on all such switches. If you retain the default configuration name on a switch, it cannot exist in the same MST region with another switch. (Default Name: A text string using the hexadecimal representation of the switch’s MAC address)

The no form of the command overwrites the currently configured name with the default name.

Note: This option is available only when the switch is configured for MSTP operation. Also, there is no defined limit on the number of regions you can configure.

Syntax: spanning-tree config-revision < revision-number>

This command configures the revision number you designate for the MST region in which you want the switch to reside. This setting must be the same for all switches residing in the same region. Use this setting to differentiate between region configurations in situations such as the following:

Changing configuration settings within a region where you want to track the configuration versions you use

Creating a new region from a subset of switches in a current region and want to maintain the same region name.

Using the pending option to maintain two different configuration options for the same physical region.

Note that this setting must be the same for all MSTP switches in the same MST region. (Range: 0 - 65535; Default: 0)

Note: This option is available only when the switch is configured for MSTP operation.

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