RPVST+ commands show spanning-tree show spanning-tree inconsistent-ports show spanning-tree summary port show spanning-tree summary root 扩充树vlan展示 spanning-tree bpdu-guard timeout spanning-tree extend-system-id spanning-tree ignore-pvid-inconsistency spanning-tree link-type spanning-tree mode 扩充树pathcost-type spanning-tree rpvst-mstp interconnect vlan spanning-tree tcn-guard spanning-tree vlan spanning-tree vlan cost spanning-tree vlan port-priority spanning-tree trap