1. 配置各接口所属的VLAN
[LSW1]vlan 10
[LSW1-GigabitEthernet0/0/1]port link-type trunk
[LSW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW2]vlan batch 10
[LSW2-GigabitEthernet0/0/1]port link-type trunk
[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW3]vlan 10
[LSW3-GigabitEthernet0/0/1]port link-type trunk
[LSW3-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW4]vlan 10
[LSW4-GigabitEthernet0/0/1]port link-type trunk
[LSW4-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW5]vlan 10
[LSW5-GigabitEthernet0/0/1]port link-type trunk
[LSW5-GigabitEthernet0/0/1]port trunk allow-pass vlan 10
[LSW5-GigabitEthernet0/0/2]port link-type trunk
[LSW5-GigabitEthernet0/0/2]port trunk allow-pass vlan 10
[LSW5-GigabitEthernet0/0/3]port link-type trunk
[LSW5-GigabitEthernet0/0/3]port trunk allow-pass vlan 10
[LSW5-GigabitEthernet0/0/4]port link-type trunk
[LSW5-GigabitEthernet0/0/4]port trunk allow-pass vlan 10
2. 配置各接口的IP地址
[LSW1-Vlanif10]ip add 10.1.1.1 24
[LSW2-Vlanif10]ip add 10.1.1.2 24
[LSW3-Vlanif10]ip add 10.1.1.3 24
[LSW4-Vlanif10]ip add 10.1.1.4 24
[LSW1]int LoopBack 0
[LSW1-LoopBack0]ip add 10.10.1.1 32
[LSW2]int LoopBack 0
[LSW2-LoopBack0]ip add 10.10.2.2 32
[LSW3]int LoopBack 0
[LSW3-LoopBack0]ip add 10.10.3.3 32
[LSW4]int LoopBack 0
[LSW4-LoopBack0]ip add 10.10.4.4 32
3. 配置OSPF基本功能
[LSW1]ospf 1 router-id 10.10.1.1
[LSW1-ospf-1]area 0
[LSW1-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[LSW2]ospf 1 router-id 10.10.2.2
[LSW2-ospf-1]area 0
[LSW2-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[LSW3]ospf 1 router-id 10.10.3.3
[LSW3-ospf-1]area 0
[LSW3-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[LSW4]ospf 1 router-id 10.10.4.4
[LSW4-ospf-1]area 0
[LSW4-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
4. 配置交换机接口上的DR优先级
[LSW1-Vlanif10]ospf dr-priority 100 //被选举为DR
[LSW2-Vlanif10]ospf dr-priority 0 //无法成为DR或BDR
[LSW3-Vlanif10]ospf dr-priority 2 //被选举为BDR
5. 重启OSPF进程
<LSW1>reset ospf process
<LSW2>reset ospf process
<LSW3>reset ospf process
<LSW4>reset ospf process
6. 验证配置
