BPDU Tunnel Configuration Example 277[SW7750-mst-region] region-name example[SW7750-mst-region] instance 1 vlan 10[SW7750-mst-region] instance 3 vlan 30[SW7750-mst-region] instance 4 vlan 40[SW7750-mst-region] revision-level 0# Activate the settings of the MST region.[SW7750-mst-region] active region-configurationBPDU TunnelConfigurationExampleNetwork requirements■ Switch 7750s operate as the access devices of the operator’s network, that is,Switch C and Switch D in the network diagram.■ S2000 series switches operate as the access devices of the user’s network, thatis, Switch A and Switch B in the network diagram.■ Switch C and Switch D connect to each other through the configured trunkport of the switch, and are enabled with the BPDU Tunnel function. Therebytransparent transmission is realized between the user’s network and theoperator’s network.Network diagramFigure 67 Network diagram for BPDU Tunnel configurationConfiguration procedure1 Configure Switch A.# Enable RSTP. system-view[SW7750] stp enable# Add port Ethernet1/0/1 to VLAN 10.[SW7750] vlan 10[SW7750-Vlan10] port Ethernet 1/0/12 Configure Switch B.# Enable RSTP.Switch CSwitch ASwitch DSwitch BE 1/0/1E 1/0/2 E 1/0/1E 1/0/2E 1/0/1 E 1/0/1
