Operation Manual – MSTPH3C S3100 Series Ethernet Switches Chapter 1 MSTP Configuration1-201.3.1 Configuration PrerequisitesThe role (root, branch, or leaf) of each switch in each spanning tree instance isdetermined.1.3.2 Configuring an MST RegionI. Configuration procedureTable 1-8 Configure an MST regionOperation Command DescriptionEnter system view system-view —Enter MST region view stpregion-configuration —Configure the name of theMST region region-name nameRequiredThe default MST regionname of a switch is itsMAC address.instance instance-idvlan vlan-listConfigure the VLANmapping table for the MSTregion vlan-mappingmodulo moduloRequiredBoth commands can beused to configure VLANmapping tables.By default, all VLANs in anMST region are mapped tospanning tree instance 0.Configure the MSTPrevision level for the MSTregionrevision-level levelRequiredThe default revision levelof an MST region is level 0.Activate the configuration ofthe MST region manuallyactiveregion-configuration RequiredDisplay the configuration ofthe current MST regioncheckregion-configuration OptionalDisplay the currently validconfiguration of the MSTregiondisplay stpregion-configurationYou can execute thiscommand in any view.Note:NTDP packets sent by devices in a cluster can only be transmitted within the instancewhere the management VLAN of the cluster resides.Configuring MST region-related parameters (especially the VLAN mapping table)results in spanning tree recalculation and network topology jitter. To reduce network
