Operation Manual – Login 
Quidway S5600 Series Ethernet Switches-Release 1510  Chapter 3  Logging in through Telnet
 
Huawei Technologies Proprietary 
3-11 
Operation  Command  Description 
Configure to 
authenticate users 
locally or remotely 
authentication-mode 
scheme [ command- 
authorization ] 
Required 
The specified AAA scheme 
determines whether to 
authenticate users locally or 
remotely. 
Users are authenticated 
locally by default. 
Configure the command 
level available to users 
logging into the user 
interface 
user privilege level 
level 
Optional 
By default, commands of 
level 0 are available to users 
logging into the VTY user 
interfaces. 
Configure the supported 
protocol 
protocol inbound { all | 
ssh | telnet } 
Optional 
Both Telnet protocol and SSH 
protocol are supported by 
default. 
Make terminal services 
available 
shell 
Optional 
Terminal services are 
available in all use interfaces 
by default. 
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 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 for 
the 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.