S75E设简单测试过程:
设备:
S7506E R6708版本
拓扑:
S75E(21)----SW—— (自环)
|____|
配置:
#
stp enable
#
#
interface GigabitEthernet5/0/21
port link-mode bridge
#
结果:
1. 5号板子是交换板,21口连接了下面即将自环的交换机,此时21口是转发状态
[H3C]display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet5/0/21 DESI FORWARDING NONE
0 Ten-GigabitEthernet2/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet3/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet4/0/1 DESI FORWARDING NONE
[H3C]
2. 把下联交换机自环后状态为
[H3C]dis stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet5/0/21 DESI DISCARDING NONE
0 Ten-GigabitEthernet2/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet3/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet4/0/1 DESI FORWARDING NONE
[H3C]
3. 去掉下联交换机自环线缆
[H3C]display stp brief
MSTID Port Role STP State Protection
0 GigabitEthernet5/0/21 DESI FORWARDING NONE
0 Ten-GigabitEthernet2/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet3/0/1 DESI FORWARDING NONE
0 Ten-GigabitEthernet4/0/1 DESI FORWARDING NONE
[H3C]