1-3DescriptionUse the check region-configuration command to display the MST region-related configuration whichis being modified currently, including region name, revision level, and VLAN-to-MSTI mapping table.As specified in the MSTP protocol, the configurations of MST regions must be right, especially theVLAN-to-MSTI mapping table. MSTP-enabled switches are in the same region only when they have thesame format selector (a 802.1s-defined protocol selector, which is 0 by default and cannot beconfigured), region name, VLAN-to-MSTI mapping table, and revision level. A switch cannot be in theexpected region if any of the four MST region-related parameters mentioned above are not consistentwith those of another switch in the region.The H3C series support only the MST region name, VLAN-to-MSTI mapping table, and revision level.Switches with the settings of these parameters being the same are assigned to the same MST region.This command is used to display the configuration information of inactivated MST regions. You can usethis command to find the MST region the switch currently belongs to or check to see whether or not theMST region-related configuration is correct.Related commands: instance, region-name, revision-level, vlan-mapping modulo, activeregion-configuration.Examples# Display the MST region-related configuration. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] stp region-configuration[Sysname-mst-region] check region-configurationAdmin ConfigurationFormat selector :0Region name :00e0fc003600Revision level :0Instance Vlans Mapped0 1 to 9, 11 to 409416 10Table 1-1 Description on the fields of the check region-configuration commandField DescriptionFormat selector The selector specified by MSTPRegion name The name of the MST regionRevision level The revision level of the MST regionInstance Vlans Mapped VLAN-to-MSTI mappings in the MST regiondisplay stpSyntaxdisplay stp [ instance instance-id ] [ interface interface-list | slot slot-number ] [ brief ]