1.题目

2.实验拓扑

3.配置实验

3.1.eth-trunk配置

1.sw1

[sw1]int Eth-Trunk 0

[sw1-GigabitEthernet0/0/23]int g0/0/24
[sw1-GigabitEthernet0/0/24]eth-trunk 0

[sw1-Eth-Trunk0]int g0/0/23
[sw1-GigabitEthernet0/0/23]eth-trunk 0

2.sw2

[sw2]int Eth-Trunk 0

[sw2-GigabitEthernet0/0/23]int g0/0/24

[sw2-GigabitEthernet0/0/24]eth-trunk 0

[sw2-Eth-Trunk0]int g0/0/23

[sw2-GigabitEthernet0/0/23]eth-trunk 0

3.2.创建VLAN并且对其划分

1.sw1

[sw1]vlan 2

[sw1]port-group group-member GigabitEthernet 0/0/2 to g0/0/3 Eth-Trunk 0

[sw1-port-group]port link-type trunk?

[sw1-port-group]port trunk allow-pass vlan 2

2.sw2

[sw2]vlan 2

[sw2]port-group group-member GigabitEthernet 0/0/2 to g0/0/3 Eth-Trunk 0

[sw2-port-group]port link-type trunk?

[sw2-port-group]port trunk allow-pass vlan 2

3.sw3

[sw3]vlan 2

[sw3]port-group group-member GigabitEthernet 0/0/1 to g0/0/2

[sw3-port-group]port link-type trunk?

[sw3-port-group]port trunk allow-pass vlan 2

在这里插入图片描述

4.sw4

?[sw4]vlan 2

[sw4]port-group group-member GigabitEthernet 0/0/1 to g0/0/2

[sw4-port-group]port link-type trunk?

[sw4-port-group]port trunk allow-pass vlan 2

?[sw4]int e0/0/4

?[sw4-Ethernet0/0/4]port link-type access

[sw4-Ethernet0/0/4]port default vlan 2

3.3.STP? 配置生成树

1.sw1

[sw1]stp mode mstp

[sw1]stp enable

[sw1]stp region-configuration

[sw1-mst-region] region-name a

[ sw1-mst-region] instance 1 vlan 1

[ sw1-mst-region] instance 2 vlan 2

[sw1-mst-region] active region-configuration

2.sw2

[sw2]stp mode mstp

[sw2]stp enable

[sw2]stp region-configuration

[sw2-mst-region] region-name a

[ sw2-mst-region] instance 1 vlan 1

[ sw2-mst-region] instance 2 vlan 2

[sw2-mst-region] active region-configuration

3.sw3

[sw3]stp mode mstp

[sw3]stp enable

[sw3]stp region-configuration

[sw3-mst-region] region-name a

[ sw3-mst-region] instance 1 vlan 1

[ sw3-mst-region] instance 2 vlan 2

[sw3-mst-region] active region-configuration

4.sw4

[sw4]stp mode mstp

[sw4]stp enable

[sw4]stp region-configuration

[sw4-mst-region] region-name a

[ sw4-mst-region] instance 1 vlan 1

[ sw4-mst-region] instance 2 vlan 2

[sw4-mst-region] active region-configuration

3.4.配置VLAN1的主根和VLAN2的主根

1.sw1为vlan1的主根，vlan2的备份根

[sw1]stp instance 1 root primary

[sw1]stp instance 2?root secondary

2.sw2为vlan2的主根，vlan1的备份根

[sw2]stp instance 1 root primary

[sw2]stp instance 2?root secondary

3.sw3和sw4边缘接口

[sw3]port-group group-member? e0/0/3 to e0/0/4

[sw3-port-group]stp edged-port enable

[sw4]port-group group-member? e0/0/3 to e0/0/4

[sw4-port-group]stp edged-port enable