串行鏈路故障排除實驗教師用書

1、華為網(wǎng)絡產(chǎn)品故障排查串行鏈路故障教師用書串行鏈路故障排除實驗教師用書1.1組網(wǎng)需求描述........................................................................................................................21.2教師實驗前準備..............................................

2、......................................................................31.2.1配置全網(wǎng)互通.............................................................................................................31.2.2設置故障點..................

3、.............................................................................................101.3故障現(xiàn)象描述....................................................................................................................

4、..121.4故障相關(guān)信息收集...............................................................................................................121.5原因分析及故障排除參考流程............................................................................

5、.................121.5.1PPP故障..................................................................................................................131.5.2物理鏈路故障................................................................

6、...........................................161.5.3X.25故障..................................................................................................................181.5.4Framerelay故障...............................

7、.......................................................................221.5.5路由故障..................................................................................................................241.6教師實驗指導建議...........

8、....................................................................................................251.6.1分組建議.............................................................................................................

9、.....251.6.2組長推舉以及組員分工.............................................................................................251.6.3分組討論..............................................................................................

10、....................251.6.4各組總結(jié)..................................................................................................................251.6.5提問..................................................................

11、........................................................251.6.6教師總結(jié)..................................................................................................................261.6.7實驗中的時間點控制.......................

12、.........................................................................261.7經(jīng)驗總結(jié).............................................................................................................................26華為網(wǎng)絡產(chǎn)品故障排查串

13、行鏈路故障教師用書本實驗的最終目的是讓學員成功排除教師在網(wǎng)絡中設置的全部故障點，調(diào)試達到全網(wǎng)互通。對于全網(wǎng)互通，我們可以用以下的方法進行檢測：在上海的用戶使用PPP撥號以后，可以實現(xiàn)對所有辦事處的訪問。在主機上運行ping1.1.1.1、ping2.2.2.2、ping3.3.3.1、ping4.4.4.4，看是否能夠ping通。注解注解：為了表述方便，各個路由器的命名使用地域名稱（實現(xiàn)X.25和Framerelay交換功能的路由器稱為

14、“ISP”）。1.2教師實驗前準備1.2.1配置全網(wǎng)互通作為教師，在實驗前的第一項重要工作應該是準備好實驗環(huán)境，根據(jù)組網(wǎng)需求描述中的要求配置全網(wǎng)互通，并驗證通過。下面列出全網(wǎng)互通時5臺路由器上的全部配置信息以供參考：[beijing]displaycurrentconfigurationNowcreateconfiguration...Currentconfiguration!version1.74localuserchengduser

15、vicetypeppppasswdsimplemppppmpuserchengdubindVirtualTemplate1firewallenablesysnamebeijing!interfaceAux0asyncmodeflowlinkprotocolppp!interfaceEther0!interfaceSerial0clockDTECLK3linkprotocolx25dteietfdeiontoisps0x25x25x121