Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms XDBR_LAB#

XDBR_LAB#show flash:\*查看flash中的文件及空间大小，用多少，剩下多少 System flash directory:

File Length 1

Name/status

16423684 c3640-JK9O3S-M.12-4.bin

[16423748 bytes used, 353468 available, 16777216 total]

16384K bytes of processor board System flash (Read ONLY) XDBR_LAB#

XDBR_LAB#copy flash:c3640-JK9O3S-M.12-4.bin tftp: Address or name of remote host []? 137.0.0.2

Destination filename [c3640-JK9O3S-M.12-4.bin]?

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 16423684 bytes copied in 314.464 secs (52228 bytes/sec) （2）升级IOS：

XDBR_LAB #copy tftp flash

Address or name of remote host [10.1.1.1]? Source filename []?c3640-JK9O3S-M.12-4.bin

Destination filename [c3640-JK9O3S-M.12-4.bin]?

Accessing tftp://10.1.1.199/ c3640-JK9O3S-M.12-4.bin... Erase flash: before copying? [confirm]

Erasing the flash filesystem will remove all files! Continue? [confirm] Erasing device... eeeee (output omitted) ...erased Erase of flash: complete

Loading c3640-JK9O3S-M.12-4.bin from 10.1.1.199(via Ethernet0): !!!!!!!!!!!!!!!!!!!! (output omitted)

[OK - 10084696/20168704 bytes]

Verifying checksum... OK (0x9AA0)

10084696 bytes copied in 309.108 secs (32636 bytes/sec) (3)配置文件的备份

startup-config文件的备份:copy startup-config tftp (4)配置文件的恢复

startup-config文件的恢复:copy tftp startup-config