1.配置基本的IP地址和连通性
[LSW1]vlan batch 10
[LSW1-Vlanif10]ip add 10.1.1.1 24
[LSW1-GigabitEthernet0/0/1]port link-type hybrid
[LSW1-GigabitEthernet0/0/1]port hybrid untagged vlan 10
[LSW1-GigabitEthernet0/0/1]port hybrid pvid vlan 10
[LSW2]vlan batch 10
[LSW2-Vlanif10]ip add 10.1.1.2 24
[LSW2-GigabitEthernet0/0/1]port link-type hybrid
[LSW2-GigabitEthernet0/0/1]port hybrid untagged vlan 10
[LSW2-GigabitEthernet0/0/1]port hybrid pvid vlan 10
[LSW3]vlan batch 10
[LSW3-Vlanif10]ip address 10.1.1.3 24
[LSW3-GigabitEthernet0/0/1]port link-type hybrid
[LSW3-GigabitEthernet0/0/1]port hybrid untagged vlan 10
[LSW3-GigabitEthernet0/0/1]port hybrid pvid vlan 10
[LSW4]vlan batch 10
[LSW4-Ethernet0/0/1]port link-type hybrid
[LSW4-Ethernet0/0/1]port hybrid untagged vlan 10
[LSW4-Ethernet0/0/1]port hybrid pvid vlan 10
[LSW4-Ethernet0/0/2]port link-type hybrid
[LSW4-Ethernet0/0/2]port hybrid pvid vlan 10
[LSW4-Ethernet0/0/2]port hybrid untagged vlan 10
[LSW4-Ethernet0/0/3]port link-type hybrid
[LSW4-Ethernet0/0/3]port hybrid untagged vlan 10
[LSW4-Ethernet0/0/3]port hybrid pvid vlan 10
2. 配置NTP客户端/服务器模式
[LSW1]ntp-service refclock-master 2 //将LSW1的本地时钟设为NTP主时钟，层数为2
[LSW2]ntp-service unicast-server 10.1.1.1 //在LSW2上指定LSW1作为LSW2的NTP服务器
3. 配置NTP对等体模式
[LSW3]ntp-service unicast-peer 10.1.1.2 //在LSW3上指定LSW2作为自己的被动对等体
4.验证配置：LSW2和LSW3已经完成同步
