[IRF-SW1]dldp global enable 开启DLDP
[IRF-SW1]interface range g1/0/23 g2/0/24
[IRF-SW1-if-range]duplex full
[IRF-SW1-if-range]speed 1000
[IRF-SW1-if-range]dldp enable
[IRF-SW1-if-range]qui
[IRF-SW1]dldp unidirectional-shutdown auto 发现单向链路后端口的关闭模式为auto
[IRF-SW1]dldp work-mode enhance 工作模式为加强模式
注意:需要两端都配置