(1)啓用生成樹: spanning-tree vlan vlan-list(vlan號)
(2)配置交換機爲根網橋: spanning-tree vlan vlan-list root primary (指定根網橋)| secondary(備用根網橋)
(3)修改交換機的優先級: spanning-tree vlan vlan-list priority bridge-priority(網橋優先級)
(4)修改端口路徑成本: spanning-tree vlan vlan-list cost cost(成本)
(5)修改端口優先級: spanning-tree vlan vlan-list port-priority priority(端口優先級)
(6) 配置上行速鏈路: spanning-tree uplinkfast(上行鏈路)
(7)配置速端口: spanning-tree portfast(速端口)
(8)查看生成樹: show spanning-tree