1-17An S7900E switch installed with an OLT card can work as an EPON OLT. In this case, you can remoteconfigure STP/RSTP/MSTP for ONUs in ONU port view to remove loops between attached ONUs, andyou can also remotely configure RSTP for UNIs on an ONU to remove loops between UNIs and terminalusers.Complete the following tasks to configure MSTP:Task RemarksRemotely Configuring MSTP for an ONU OptionalRemotely Configure RSTP for UNIs of an ONUOptionalRefer to EPON-OLT Configuration in theAccess VolumeConfiguring MSTPConfiguring an MST RegionMake the following configurations on the root bridge and on the leaf nodes separately.Follow these steps to configure an MST region:To do... Use the command... RemarksEnter system view system-view —Enter MST region view stp region-configuration —Configure the MST regionname region-name nameOptionalThe MST region name is theMAC address by default.instance instance-id vlan vlan-listConfigure theVLAN-to-instance mappingtable vlan-mapping modulo moduloOptionalUse either command.All VLANs in an MST regionare mapped to MSTI 0 bydefault.Configure the MSTPrevision level of the MSTregionrevision-level level Optional0 by defaultDisplay the MST regionconfigurations that are notactivated yetcheck region-configuration OptionalActivate MST regionconfiguration manually active region-configuration RequiredDisplay the configurationsof currently activated MSTregionsdisplay stp region-configuration The display command canbe executed in any view.
