IOS软件中备份和升级IOS软件

钱塘在线

2.7 实验6:备份和升级IOS软件

本章开始时己经提到，备份和升级是两个方向相反的过程。依照通常的约定，备份是指从网络设备向TFTP服务器中复制软件，而升级是指从TFTP服务器向设备复制软件。

本节通过实验演示对Cio器的IOS软件映像文件进行备份和升级。

1.实验目的

通过本实验，读者可以掌握以下技能:

备份IOS软件;
升级IOS软件，
熟练使用TFTP服务器软件。

2.设备需求与线缆连接要求

本实验所需设备、线缆连接及IP地址设置与实验5完全相同，请参照实验5的有关图示及说明进行准备。

3.实验配置及监测结果

在与实验5的相同的实验环境中，开始本实验。

相信读者在完成了实验5的操作以后，可以轻松地进行本实验;它们的操作是相似的。

首先启动Cio TFTP Server，并把TFTP server root指定到目录"D:LCCNA LAB\IOS"下，保持其开启状态。

监测清单2-7备份和升级IOS映像的实验操作过程记录。

监测清单2-7备份和升级IOS映像

Router#sh flash
System flash directory:
File Length Name/status
1 c2501-d-1,121-8a.mz
[4289668 bytes used, 4098940 available, 8388608 total]
8192K bytes of processor board System flash (Read/Write)
Router#copy flash tftp
Source filename []? c2500-d-1.121-8a.mz
Address or name of remote host []? 172.16.162.58
Destination filename [c2500-d-1.121-8a.mz]? (按回车键确认)
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!
4289602 bytes copd m 62.320 secs (69187 bytes/sec)
Router#

Router#copy tftp flash
Address or name of remote host []? 172.16.16258
Source filename []? c2500-d-1.121-8a.mz
Destination filename [c2500-d-1.121-8a.mz]? (按回车键确认)
%Waming:There is a file already existing with this name
Do you want to over write? [confirm] (按回车键确认)
Accessing tftp://172.16.162.58/c2500-d-1.121-8a.mz...
Erase flash: befeor copying?
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