思科模拟器路由器交换机配置端口模式不一至

Router(config-if)#*Mar 1 00:47:30.823: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/0 (not half duplex), with r2 FastEthernet0/0 (half duplex).*Mar 1 00:48:30.839: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/0 (not half duplex), with r2 FastEthernet0/0 (half duplex).Router(config-if)#Router(config-if)#duplex fullDuplex will not be set until speed is set to non-auto valueRouter(config-if)#Router(config-if)#*Mar 1 00:35:30.759: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/0 (not half duplex), with r2 FastEthernet0/0 (half duplex).*Mar 1 00:36:30.763: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on FastEthernet0/0 (not half duplex), with r2 FastEthernet0/0 (half duplex)

把接口全部改为duplex half 或full
看的有点乱

默认情况下快速以太网端口fastethernet工作在 speed auto duplex auto上面的 从你的出错提示来看*mar 1 00:36:30.763: %cdp-4-duplex_mismatch: duplex mismatch discovered on fast ethernet0/0 (not half duplex), with r2 fastethernet0/0 (half duplex) 应该是对段即 r2 的双工模式在 half duplex即半双工 要解决这个问题1、可以全部设置为自动协商 speed auto duplex auto2、因为不知道你的对段 r2的端口速率，从提示来看，你的router这台路由器，手动设置了速率！可以考虑更改为speed auto 3、由于对段 r2的双工模式为 half duplex(半双工)，要消除提示应该修改router f0/0的双工模式为half duplex 如果没有特殊原因，建议端口设置为自动协商，即speed auto duplex auto