1-3Table 1-1 check region-configuration command output descriptionField DescriptionFormat selector Format selector of the MST region, which defaults to 0 andis not configurable.Region name MST region nameRevision level Revision level of the MST regionInstance Vlans Mapped VLAN-to-instance mappings in the MST regiondisplay stpSyntaxdisplay stp [ instance instance-id ] [ interface interface-list ] [ brief ]ViewAny viewDefault Level1: Monitor levelParametersinstance instance-id: Displays the status and statistics of a particular MSTI. The minimum value ofinstance-id is 0, representing the common internal spanning tree (CIST), and the maximum value is 3.interface interface-list: Displays the MSTP status and statistics on the ports specified by a port list, inthe format of interface-list = { interface-type interface-number [ to interface-typeinterface-number ] }&<1-10>, where &<1-10> indicates that you can specify up to 10 ports or portranges.brief: Displays brief MSTP status and statistics.DescriptionUse the display stp command to view the MSTP status and statistics.Based on the MSTP status and statistics, you can analyze and maintain the network topology or checkwhether MSTP is working normally.Note that:z If you do not specify any MSTI or port, this command will display the MSTP information of all MSTIson all ports. The displayed information is sorted by MSTI ID and by port name in each MSTI.z If you specify an MSTI but not a port, this command will display the MSTP information on all ports inthat MSTI. The displayed information is sorted by port name.z If you specify some ports but not an MSTI, this command will display the MSTP information of allMSTIs on the specified ports. The displayed information is sorted by MSTI ID, and by port name ineach MSTI.z If you specify both an MSTI ID and a port list, this command will display the MSTP information onthe specified ports in the specified MSTI. The displayed information is sorted by port name.The MSTP status information includes:
