ciscoios路由器基礎(chǔ)（一）v5.0

1、CiscoIOS路由器基礎(chǔ)（一）v5.0(僅供內(nèi)部使用）Finternaluseonly擬制:Preparedby劉宇18957日期：Date2004113審核:Reviewedby日期：Date審核:Reviewedby日期：Date批準(zhǔn):Grantedby日期：Date華為技術(shù)有限公司HuaweiTechnologiesCo.Ltd.版權(quán)所有侵權(quán)必究AllrightsreservedCiscoIOS路由器基礎(chǔ)（一）v5.0公開200

2、31224版權(quán)所有，侵權(quán)必究Allrightsreserved第3頁共28頁P(yáng)age3Total28目錄TableofContents1.Cisco路由器基本硬件組成...........................................................................................51.1CPU.......................................

3、.............................................................................51.2FlashMemy....................................................................................................51.3ROM.......................

4、............................................................................................61.4RAM...................................................................................................................61.5NV

5、RAM..............................................................................................................61.6IO端口...................................................................................................

6、............62.路由器的初始化過程....................................................................................................63.檢查IOS........................................................................................

7、...............................83.1showversion命令...............................................................................................93.2showflash命令..............................................................

8、...................................103.3路由器內(nèi)存中的內(nèi)容.........................................................................................103.4IOSimage命名...................................................................

9、..............................103.5IOS映像文件下載及CCO帳號(hào)...........................................................................114.升級(jí)Cisco2500系列的IOS版本........................................................................

10、.........125.升級(jí)Cisco2600、3600系列的IOS版本.....................................................................136.從其他同型號(hào)路由器上取得正確的版本升級(jí)..............................................................147.很有用的經(jīng)驗(yàn)：路由器Flash不夠大，如何加載IO

11、S？...............................................158.對(duì)升級(jí)中出現(xiàn)意外情況的處理....................................................................................168.1通過xmodem來恢復(fù)......................................................

12、..................................168.2通過TFTP服務(wù)器恢復(fù).......................................................................................189.路由器恢復(fù)丟失的口令.....................................................................

13、..........................199.1Cisco2500系列的口令恢復(fù)..............................................................................209.2Cisco3600系列的口令恢復(fù)..........................................................................

14、....209.3CiscoSwitch3500口令恢復(fù).............................................................................2110.一些常見的典型案例..................................................................................................231

15、0.1路由器顯示終端出現(xiàn)亂碼..................................................................................2310.2升級(jí)版本后，路由器提示引導(dǎo)出錯(cuò)...................................................................2410.3路由器直接進(jìn)入到監(jiān)視模式..................

16、............................................................2410.3.1原因1：升級(jí)失敗................................................................................2410.3.2原因2：寄存器配置有誤.............................................