实验 2：备份和还原IOS

SW1配置

Switch>en
Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#hostname sw1

sw1(config)#interface vlan
sw1(config-if)#ip add 192.168.1.1 255.255.255.0

sw1(config-if)#no shutdown 

sw1(config-if)#end
sw1#
%SYS--CONFIG_I: Configured from console by console

sw1#ping 192.168.1.2

Type escape sequence to abort.
Sending , -byte ICMP Echos to 192.168.1.2, timeout is  seconds:
.!!!!
Success rate is  percent (/), round-trip min/avg/max = // ms

查看IOS

sw1#show flash:
Directory of flash:/

      -rw-               <no date>  c2960-lanbase-mz.-.FX.bin

 bytes total ( bytes free)

拷贝 源 到目标
sw1#copy flash: tftp:

Source filename []? c2960-lanbase-mz.-.FX.bin
Address or name of remote host []? 192.168.1.2
Destination filename [c2960-lanbase-mz.-.FX.bin]? c296-test.bin

Writing c2960-lanbase-mz.-.FX.bin...!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK -  bytes]

还原

sw1#copy tftp: flash:
Address or name of remote host []? 192.168.1.2
Source filename []? c296-test.bin
Destination filename [c296-test.bin]? 

Accessing tftp://192.168.1.2/c296-test.bin...
Loading c296-test.bin from 192.168.1.2: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK -  bytes]

 bytes copied in 0.119 secs ( bytes/sec)

sw1#show flash:
Directory of flash:/

      -rw-               <no date>  c296-test.bin
      -rw-               <no date>  c2960-lanbase-mz.-.FX.bin

 bytes total ( bytes free)

sw1#delete flash:
Delete filename []?c2960-lanbase-mz.-.FX.bin
Delete flash:/c2960-lanbase-mz.-.FX.bin? [confirm]

路由器配置

Router>en
Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#hostname R1

R1(config)#no ip domain-lo

R1(config)#line console 0

R1(config-line)#logging  synchronous 

R1(config-line)#exec-timeout
% Incomplete command.
R1(config-line)#end
R1#
%SYS--CONFIG_I: Configured from console by console

R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
t
R1(config)#interface  f0/
R1(config-if)#ip add 192.168.1.1 255.255.255.0

R1(config-if)#no shutdown 

R1(config-if)#
%LINK--CHANGED: Interface FastEthernet0/, changed state to up

%LINEPROTO--UPDOWN: Line protocol on Interface FastEthernet0/, changed state to up

R1(config-if)#end
R1#
%SYS--CONFIG_I: Configured from console by console

R1#ping 192.168.1.2

Type escape sequence to abort.
Sending , -byte ICMP Echos to 192.168.1.2, timeout is  seconds:
.!!!!
Success rate is  percent (/), round-trip min/avg/max = // ms

R1#show flash: 

System flash directory:
File  Length   Name/status
      c2800nm-advipservicesk9-mz.-.T1.bin
         sigdef-category.xml
        sigdef-default.xml
[ bytes used,  available,  total]
63488K bytes of processor board System flash (Read/Write)

R1#copy flash: tftp:
Source filename []? c2800nm-advipservicesk9-mz.-.T1.bin
Address or name of remote host []? 192.168.1.2
Destination filename [c2800nm-advipservicesk9-mz.-.T1.bin]? c2800-test.bin

Writing c2800nm-advipservicesk9-mz.-.T1.bin...!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[OK -  bytes]

 bytes copied in 1.694 secs ( bytes/sec)

还原时候注意报错空间不足

50938004 bytes copied in 1.594 secs (2317041 bytes/sec)
%Error copying tftp://192.168.1.2/c2800-test.bin (Not enough space on device)