3-8
To do… Use the command… Remarks
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 in
to the user interface
user privilege level level
Optional
By default, commands of level 0 are
available to users logging in to 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 in to the switching engine 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 3-4.
