华为HDLC实验
华为ensp默认不带串口，添加设备后，右键设置，将串口拖到板卡上面https://upload-images.jianshu.io/upload_images/24325874-9218fa6f58c08efa.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
https://upload-images.jianshu.io/upload_images/24325874-277ba9450ab86523.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
地址规划：R1 s1/0/0接口地址12.1.1.1 24 R2 s1/0/0接口地址12.1.1.2 24配置完地址，查看一下R1的S1/0/0的接口信息
https://upload-images.jianshu.io/upload_images/24325874-ded6e94a7c075d8c.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
华为接口默认是PPP协议，在这里可以改成HDLCR1接口改为HDLC。
https://upload-images.jianshu.io/upload_images/24325874-1bb7be6f4239336c.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
上图显示，改为HDLC会问你是否执行，因为执行以后会导致两端链路Down。所以要再R2也要改一下。R2接口改为HDLC。
https://upload-images.jianshu.io/upload_images/24325874-df8d99ed243c1e4e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
再查看一些接口状态。发现已经改为HDLC类型
https://upload-images.jianshu.io/upload_images/24325874-3cae048e2312aee1.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240
报头和Cisco是一模一样，抓包可以抓出
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