3com 5500-ei pwr Installation Instruction

 

3-4 

Set the history command buffer 
size 

history-command 
max-size value 

Optional 

The default history command 
buffer size is 10. That is, a history 
command buffer can store up to 10 
commands by default. 

Set the timeout time of the VTY 
user interface 

idle-timeout minutes 
[ seconds ] 

Optional 

The default timeout time of a user 
interface is 10 minutes. 

With the timeout time being 10 
minutes, the connection to a user 
interface is terminated if no 
operation is performed in the user 
interface within 10 minutes. 

You can use the idle-timeout 0 
command to disable the timeout 
function. 

 

Note that if you configure not to authenticate the users, the command level available to users logging in 

to a switch depends on the user privilege level level command 

Assume current user logins through the console port, and the current user level is set to the 

administrator level (level 3). Perform the following configurations for users logging in through VTY 0 

using Telnet. 

z 

Do not authenticate the users. 

z 

Commands of level 2 are available to the users. 

z 

Telnet protocol is supported. 

z 

The screen can contain up to 30 lines. 

z 

The history command buffer can contain up to 20 commands. 

z 

The timeout time of VTY 0 is 6 minutes. 

Figure 3-1 Network diagram for Telnet configuration (with the authentication mode being none) 

 

 

# Enter system view. 

<Sysname> system-view 

# Enter VTY 0 user interface view. 

[Sysname] user-interface vty 0 

# Configure not to authenticate Telnet users logging in to VTY 0.