H3C Technologies H3C S3100 Series Switches - Manual (Page 49)

3-4
Operation Command Description
Make terminal services
available
shell
Optional
By default, terminal services are available
in all user interfaces.
Set the maximum number of
lines the screen can contain
screen-length screen-length
Optional
By default, the screen can contain up to 24
lines.
You can use the screen-length 0
command to disable the function to
display information in pages.
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
into a switch depends on the user privilege level level command
Configuration Example
Network requirements
Assume current user logins through the Console port, and the 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.
Network diagram
Figure 3-1 Network diagram for Telnet configuration (with the authentication mode being none)
Configuration procedure
# Enter system view.
system-view