Cisco 3550-SMI IOS升级过程分享

Cisco 3550-SMI IOS升级过程分享(4) FastEthernet0/21           unassigned      YES unset  down                  down   
FastEthernet0/22           unassigned      YES unset  down                  down   
FastEthernet0/23           unassigned      YES unset  down                  down   
FastEthernet0/24           unassigned      YES unset  up                    up     
GigabitEthernet0/1         unassigned      YES unset  down                  down   
GigabitEthernet0/2         unassigned      YES unset  down                  down   
Switch#ping 10.1.27.59
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.27.59, timeout is 2 seconds:
!!!!!
SUCcess rate is 100 percent (5/5), round-trip min/avg/max = 1/2/3 ms
Switch#
二备份现有的IOS和配置
在PC机上运行TFTPserver，把设备当前运行的IOS和配置文件上传到PC机上。
Switch#dir
Directory of flash:/