CCNA课程实验-06-RSTP-优快云博客

实验条件

网络拓朴

在这里插入图片描述

需求

● 理解生成树STP的选举过程
● 掌握生成树STP接口角色切换的操作

配置实现

默认情况阻塞的是SW3的E0/1接口，保持SW1根桥角色不变的情况下，将阻塞接口切换到SW2的E0/1接口

三台交换机状态如下
SW1

SW1#show spanning-tree

VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    32769
             Address     aabb.cc00.1000
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
             Address     aabb.cc00.1000
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time  300 sec

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Et0/0               Desg FWD 100       128.1    P2p 
Et0/1               Desg FWD 100       128.2    P2p 
Et0/2               Desg FWD 100       128.3    P2p 
Et0/3               Desg FWD 100       128.4    P2p 


SW1#

SW2

SW2#show spanning-tree

VLAN0001
  Spanning tree enabled protocol ieee
  Root ID    Priority    32769
             Address     aabb.cc00.1000
             Cost        100
             Port        1 (Ethernet0/0)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
             Address     aabb.cc00.2000
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time  300 sec

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- ------------------