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CISCO路由器IOS升级方法总结

nbsp;   *Mar  1 00:00:11.245: %LINK-5-CHANGED: Interface Serial0/1, changed state to administratively down

    *Mar  1 00:00:12.275: %SYS-5-RESTART: System restarted ——Cisco Internetwork Operating System Software

    IOS (tm) C2600 Software (C2600-I-M), Version 12.2(11)T9,  RELEASE SOFTWARE (fc1)

    TAC Support: http://www.cisco.com/tac

    Copyright (c) 1986-2003 by cisco Systems, Inc.

    Compiled Mon 23-Jun-03 15:42 by cmong

    *Mar  1 00:00:12.279: %SNMP-5-COLDSTART: SNMP agent on host NE16 is undergoing a cold start

    Router>采用这种方法时,由于使用console口来传送,速率为9600bps,需要时间较长。因此可修改console口速率利用xmodem命令实现快速升级IOS.具体方法如下:

    QUOTE:rommon 1 > confreg 回车

    Configuration Summary

    enabled are:

    load rom after netboot fails

    console baud: 9600

    boot: image specified by the boot system commands

    or default to: cisco2-C2600

    do you wish to change the configuration? y/n [n]: y (选择 yes)

    enable "diagnostic mode"? y/n [n]: n (选择 no)

    enable "use net in IP bcast address"? y/n [n]: n (选择 no)

    disable "load rom after netboot fails"? y/n [n]: n (选择 no)

    enable "use all zero broadcast"? y/n [n]: n (选择 no)

    enable "break/abort has effect"? y/n [n]: n (选择 no)

    enable "ignore system config info"? y/n [n]: n (选择 no)

    change console baud rate? y/n [n]: y (选择 yes)

    enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400

    4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [0]: 7 (选择 7,用最大的11520

    速率的xmodem传输)

    change the boot characteristics? y/n [n]: n (选择 no)

    Configuration Summary

    enabled are:

    load rom after netboot fails

    console baud: 115200

    boot: image specified by the boot system commands

    or default to: cisco2-C2600

    do you wish to

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