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升级路由器 IOS方法总结

12-14 18:36:14   分类:网络硬件   浏览次数: 959
标签:网络硬件大全,http://www.qihang56.com 升级路由器 IOS方法总结,
  
  reset               system reset
  
  set                 display the monitor variables
  
  stack               produce a stack trace
www.qihang56.com   
  sync                write monitor environment to NVRAM
  
  sysret              print out info from last system return
  
  tftpdnld            tftp image download
  
  unalias             unset an alias
  
  unset               unset a monitor variable
  
  xmodem              x/ymodem image download
  
  rommon 2 〉
  
  在rommon 1〉状态下有两种升级IOS方法。
  
  (一)、通过Xmodem命令(注:Xmodem与实际的modem没有任何联系 只是一个传输协议 数据是通过终端的串口和路由器的Console口灌进去的)升级IOS,具体步骤如下:
  
  1、用Cisco原配的线缆连接路由器的console口与PC机的COM1,使用PC机的超级终端软件访问路由器,这时不需要对PC和路由器配置任何地址。
  
  2、在这个模式下,输入Xmodem命令,即:
  
  rommon 2 〉 xmodem -c c2600-i-mz.122-11.bin
  
  (-c是带校验,c2600-i-mz.122-11.bin为存放在PC机上的IOS映像文件)
  
  WARNING: All existing data in bootflash will be lost!
  
  Invoke this application only for disaster recovery.
  
  Do you wish to continue? y/n  [n]:  y
  
  Ready to receive file c2600-i-mz.122-11.bin ...此时在超级终端的传送栏目=〉 选择发送文件选项 =〉 再选择Xmodem 并指明IOS映像文件所在的路径,按发送即开始上传IOS,等待时间很长,视IOS的大小和传输速度。)
  
  Erasing flash at 0x607c0000
  
  program flash location 0x605b0000
  
  Download Complete!
  
  传完以后,对整个系统初始化 显示如下:
  
  program load complete, entry point: 0x80008000, size: 0x5b85e0
  
  Self decompressing the image : #################################################
  
  ################################################# [OK]
  
  Smart Init is disabled. IOMEM set to: 10
  
www.qihang56.com   Using iomem percentage: 10
  
  Restricted Rights Legend
  
  Use, duplication, or disclosure by the Government is
  
  subject to restrictions as set forth in subparagraph
  
  (c) of the Commercial Computer Software - Restricted
  
  Rights clause at FAR sec. 52.227-19 and subparagraph
  
  (c) (1) (ii) of the Rights in Technical Data and Computer
  
  Software clause at DFARS sec. 252.227-7013.
  
  cisco Systems, Inc.
  
  170 West Tasman Drive
  
  San Jose, California 95134-1706
  
  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
  
  Image text-base: 0x8000809C, data-base: 0x80A68B48
  
  cisco 2610 (MPC860) processor (revision 0x203) with 22528K/2048K bytes of memory
  
  Processor board ID JAD03483395 (1128032249)
  
  M860 processor: part number 0, mask 49
  
  Bridging software.
  
  X.25 software, Version 3.0.0.
  
  1 Ethernet/IEEE 802.3 interface(s)
  
  2 Serial(sync/async) network interface(s)
  
  32K bytes of non-volatile configuration memory.
  
  8192K bytes of processor board System flash (Read/Write)
  
  Press RETURN to get started!
  
  *Mar  1 00:00:05.652: %PA-2-UNDEFPA: Undefined Port Adaptor type 100 in bay 1
  
  *Mar  1 00:00:07.996: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
  
  *Mar  1 00:00:07.996: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down
  
  *Mar  1 00:00:07.996: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down
  
  *Mar  1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to up
  
  *Mar  1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
www.qihang56.com   
  *Mar  1 00:00:09.142: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to down
  
  *Mar  1 00:00:09.458: %SYS-5-CONFIG_I: Configured from memory by console
  
  *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:
  
  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

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