3-8
Operation Command Description
Enter one or more VTY user
interface views
user-interface vty
first-number
[ last-number ]
—
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.
Set the commands to be
executed automatically after a
user login to the user interface
successfully
auto-execute command
text
Optional
By default, no command is executed
automatically after a user logs into the
VTY user interface.
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.
Note that if you configure to authenticate the users in the scheme mode, the command level available to
the users logging into the switch depends on the user privilege level level command and the
service-type { ftp | lan-access | { ssh | telnet | terminal }* [ level level ] } command, as listed in
Table
3-7.