Operation Manual – MSTPH3C S7500 Series Ethernet Switches Chapter 1 MSTP Configuration1-91.2.2 MST Region ConfigurationI. Configuration procedureFollow these steps to configure an MST region:To do … Use the command … RemarksEnter system view system-view —Enter MST regionview stp region-configuration —Configure a namefor the MST region region-name nameRequiredThe default MST region nameof a switch is its MACaddress.instance instance-id vlanvlan-listConfigure the VLANmapping table forthe MST region vlan-mapping modulomoduloRequiredBoth commands can be usedto configure VLAN mappingtables.By default, all VLANs in anMST region are mapped toMSTI 0.Configure the MSTPrevision level for theMST regionrevision-level levelRequiredThe default revision level ofan MST region is level 0.Activate theconfiguration of theMST regionmanuallyactiveregion-configuration RequiredDisplay theconfiguration of thecurrent MST regioncheckregion-configuration OptionalDisplay the currentlyvalid configuration ofthe MST regiondisplay stpregion-configurationYou can execute thiscommand in any view.Configuring MST region-related parameters (especially the VLAN mapping table)results in spanning trees being regenerated. To reduce network topology jitter causedby the configuration, MSTP does not regenerate spanning trees immediately after theconfiguration; it does this only after you perform one of the following operations, andthen the configuration can really take effect:z Activating the new MST region-related settings by using the activeregion-configuration commandz Enabling MSTP by using the stp enable command