88To do… Use the command… RemarksClear the spanning tree statistics reset stp [ interface interface-list ] Available in userviewSpanning tree configuration examplesMSTP configuration exampleNetwork requirementsAs shown in Figure 24:• All devices on the network are in the same MST region. Device A and Device B work at thedistribution layer. Device C and Device D work at the access layer.• Configure MSTP so that packets of different VLANs are forwarded along different spanning trees:Packets of VLAN 10 are forwarded along MSTI 1, those of VLAN 30 are forwarded along MSTI 3,those of VLAN 40 are forwarded along MSTI 4, and those of VLAN 20 are forwarded along MSTI0.• VLAN 10 and VLAN 30 are terminated on the distribution layer devices, and VLAN 40 isterminated on the access layer devices. The root bridges of MSTI 1 and MSTI 3 are Device A andDevice B respectively, and the root bridge of MSTI 4 is Device C.Figure 24 Network diagram for MSTP configurationConfiguration procedure1. Configure VLANs and VLAN member ports (Details not shown):Create VLAN 10, VLAN 20, and VLAN 30 on Device A and Device B respectively, VLAN 10,VLAN 20, and VLAN 40 on Device C, and VLAN 20, VLAN 30, and VLAN 40 on Device D.Configure the ports on these devices as trunk ports and assign them to related VLANs.2. Configure Device A:Permit: all VLANsPermit: VLANs 20 and 30Permit: VLANs 10 and 20Permit: VLANs 20 and 40Permit: VLANs 20 and30Permit: VLANs 10 and20Device A Device BDevice C Device DGE1/0/3GE1/0/2GE1/0/3GE1/0/2GE1/0/3 GE1/0/3GE1/0/2GE1/0/2MST region
