CISCO 交换机3750升级IOS实例

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单位有一台CISCO3750,不能支持OSPF,为使他能支持OSPF,需进行IOS升级,详细步骤如下:
1、配置计算机与交换机连通
本处将计算机与交换机直连,本地计算机IP地址设为10.1.1.1/31,与交换机1号以太网口相连。
R1#configure terminal
R1(config)#interface fastEthernet 1/0/1
R1(config-if)#no switchport
R1(config-if)#ip address 10.1.1.2 255.255.255.252
2、架设tftp环境(本次以3CDaemon为例)
将3CDaemon安装在本地计算机C盘根目录下,运行3CDaemon.EXE并进行相关设置。
3、查看原IOS版本等信息
R1#show version
4、下载新IOS文件
将新IOS下载保存(文件名为c3750-ipservicesk9-mz.122-50.SE3.bin,文件大小为11.6M),并将该文件拷贝至tftp指定目录。
5、查看原IOS文件位置及相关信息
R1#show boot
R1#dir
Directory of flash:/
    2 -rwx           5   Mar 1 1993 02:10:54 +00:00 private-config.text
    3 -rwx        1612   Apr 1 1993 22:19:01 +00:00 vlan11.dat
    4 -rwx         796   Mar 1 1993 06:16:26 +00:00 vlan.dat
    5 drwx         192   Mar 1 1993 00:06:42 +00:00 c3750-ipbase-mz.122-35.SE5
509 -rwx        3427   Mar 1 1993 02:10:54 +00:00 config.text
15998976 bytes total (6364160 bytes free)
R1#cd c3750-ipbase-mz.122-35.SE5(注意文件名区分大小写)
R1#dir
Directory of flash:/c3750-ipbase-mz.122-35.SE5/
    6 -rwx     7175078   Mar 1 1993 00:05:41 +00:00 c3750-ipbase-mz.122-35.SE5.bin
    7 drwx        4224   Mar 1 1993 00:06:04 +00:00 html
508 -rwx         598   Mar 1 1993 00:06:42 +00:00 info
15998976 bytes total (6364160 bytes free)
剩余空间不到10M,而新IOS文件超过10M,所以需先将原IOS文件删除以释放FLASH空间。
删除前先备份原IOS文件。
R1#copy /c3750-ipbase-mz.122-35.SE5 /c3750-ipbase-mz.122-35.SE5.bin tftp
Address or name of remote host []? 10.1.1.1
Destination filename [c3750-ipbase-mz.122-35.SE5.bin]?
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
7176192 bytes copied in *** secs (***bytes/sec)

R1#delete c3750-ipbase-mz.122-35.SE5.bin
Delete filename [/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin]?
Delete flash:/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin? [confirm]
R1#dir
Directory of flash:/c3750-ipbase-mz.122-35.SE5/
    7 drwx        4224   Mar 1 1993 00:06:04 +00:00 html
508 -rwx         598   Mar 1 1993 00:06:42 +00:00 info
15998976 bytes total (13539328 bytes free)
剩余空间已超过新IOS文件大小,可以进行升级。
6、将新IOS文件上传至交换机flash(本处拷贝至根目录下)
R1#copy tftp flash
Source filename [/c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin]? /c3750-ipbase-mz.122-35.SE5/c3750-ipbase-mz.122-35.SE5.bin
Address or name of remote host []? 10.1.1.1
Destination filename [c3750-ipbase-mz.122-35.SE5.bin]?
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
7175078 bytes copied in 63.770 secs (112515 bytes/sec)
7、设置启动IOS为新IOS:
R1(config)#boot system flash:c3750-ipservicesk9-mz.122-50.SE3.bin
R1(config)#exit
R1#wr
Building configuration…
然后重启后有效
R1#reload

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