如何查看cisco 生成树状态

如何查看cisco 生成树状态 

Role(角色）：

1.Desg(指定端口）   2。Root（根端口）    3。Altn（替换端口）

Sts(状态）：

1。FWD（转发）      2。BLK（阻塞）      3。BKN*  4.LRN(学习）

ZHC6506S_TXZX2F_1#show spanning-tree interface gi 1/5

Vlan                Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
VLAN0025            Desg FWD 4         128.5    P2p
VLAN0052            Desg FWD 4         128.5    P2p
VLAN0053            Desg FWD 4         128.5    P2p
VLAN0600            Desg FWD 4         128.5    P2p

ZHC6506S_TXZX2F_2#show spanning-tree vlan 52

VLAN0052
  Spanning tree enabled protocol ieee
  Root ID    Priority    0
             Address     001f.2699.9034
             Cost        8
             Port        1 (GigabitEthernet1/1)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

Bridge ID  Priority    32768
             Address     0023.33fe.0e34
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time 300

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/1               Root FWD 4         128.1    P2p  # 主根 转发
Gi3/45              Desg BKN*19        128.301  P2p *ROOT_Inc  #指定端口 BKN*19
Gi5/1               Altn BLK 4         128.513  P2p  # 替换端口 阻塞
Gi6/1               Altn BLK 4         128.641  P2p  # 替换端口 阻塞