拓扑图
为服务器和交换机设置地址（vlan1的地址）
交换机
Switch(config)#int vlan1 Switch(config-if)#ip addr 192.168.1.1 255.255.255.0 Switch(config-if)#no shu Switch(config-if)# %LINK-5-CHANGED: Interface Vlan1, changed state to up %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up Switch(config-if)# Switch(config-if)#end 服务器打开服务器的tftp服务
进入到交换机的特权模式，查看系统映像的文件名
Switch#show flash: Directory of flash:/ 1 -rw- 4414921 <no date> c2960-lanbase-mz.122-25.FX.bin 通过tftp工具将文件上传到tftp服务器，用作备份 Switch#copy flash tftp Source filename []? c2960-lanbase-mz.122-25.FX.bin Address or name of remote host []? 192.168.1.100 Destination filename [c2960-lanbase-mz.122-25.FX.bin]? switch.bin Writing c2960-lanbase-mz.122-25.FX.bin....!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [OK - 4414921 bytes] 4414921 bytes copied in 3.079 secs (1433000 bytes/sec) 备份成功后可通过 copy tftp flash 命令来下载备份 备份配置文件与备份系统镜像一致 Switch#copy running-config tftp Address or name of remote host []? 192.168.1.100 Destination filename [Switch-confg]? Writing running-config...!! [OK - 1050 bytes] 1050 bytes copied in 0 secs 一样可以使用 copy tftp running-config 来恢复备份转载于:https://www.cnblogs.com/knightysa/p/9152282.html
相关资源：思科CISCO 3750交换机配置导出导入及IOS升级步骤