& Note: With the quit command, you can return to the previous view. You can execute the return command or press the hot key <Ctrl+Z> to return to user view.
|
|
To do… |
Use the command… |
Remarks |
|
Enter system view |
system-view |
— |
|
Configure the device name |
sysname sysname |
Optional The device
name is H |
Follow these steps to configure the system clock:
|
To do… |
Use the command… |
Remarks |
|
Set time and date |
clock datetime time date |
Optional Available in user view. |
|
Set the time zone |
clock timezone zone-name { add | minus } zone-offset |
|
|
Set a summer time scheme |
clock summer-time zone-name one-off start-time start-date end-time end-date add-time |
|
|
clock summer-time zone-name repeating start-time start-date end-time end-date add-time |
The system clock is displayed by system time stamp, which is the same as that displayed by the display clock command. The system clock is decided by the commands clock datetime, clock timezone and clock summer-time. If these three commands are not configured, the display clock command displays the original system clock. If you combine these three commands in different ways, the system clock is displayed in the ways shown in Table 1-1. The meanings of the parameters in the configuration column are as follows:
l 1 indicates date-time has been configured with the clock datetime.
l 2 indicates time-zone has been configured with the clock timezone command and the offset time is zone-offset.
l 3 indicates summer time has been configured with the clock summer-time command and the offset time is summer-offset.
l [1] indicates the clock datetime command is an optional configuration.
l The default system clock is
Table 1-1 Relationship between the configuration and display of the system clock
|
Configuration |
System clock displayed by the display clock command |
Example |
|
1 |
date-time |
Configure: clock datetime 1:00 Display: 01:00:00 UTC Mon |
|
2 |
The original system clock ± zone-offset |
Configure: clock timezone zone-time add 1 Display: 02:00:00 zone-time Sat |
|
1 and 2 |
date-time ± zone-offset |
Configure: clock datetime 2:00 Display: 03:00:00 zone-time Fri |
|
[1], 2 and 1 |
date-time |
Configure: clock timezone zone-time add 1
and clock datetime 3:00 Display: 03:00:00 zone-time Sat |
|
3 |
If the original system clock is not in the summer time range, the original system clock is displayed. |
Configure: clock summer-time ss one-off
1:00 Display: 01:00:00 UTC Sat |
|
If the original system clock is in the summer time range, the original system clock + summer-offset is displayed. |
Configure: clock summer-time ss one-off
00:30 Display: 03:00:00 ss Sat |
|
|
1 and 3 |
If date-time is not in the summer time range, date-time is displayed. |
Configure: clock datetime 1:00 Display: 01:00:00 UTC Mon |
|
If date-time is in the summer time range, “date-time” + “summer-offset” is displayed. |
Configure: clock datetime 8:00 Display: 10:00:00 ss Mon |
|
|
[1], 3 and 1 |
If date-time is not in the summer time range, date-time is displayed. |
Configure: clock summer-time ss one-off
1:00 Display: 01:00:00 UTC Tue |
|
date-time is in the summer time range: If the value of “date-time”
- “summer-offset” is not in the summer-time range, “date-time”
- “summer-offset” is displayed; |
Configure: clock summer-time ss one-off
1:00 Display: 23:30:00 UTC Sun |
|
|
Configure: clock summer-time ss one-off
1:00 Display: 03:00:00 ss Mon |
||
|
2 and 3 or 3 and 2 |
If the value of the original system clock ± “zone-offset” is not in the summer-time range, the original system clock ± “zone-offset” is displayed. |
Configure: clock timezone zone-time add 1
and clock summer-time ss one-off 1:00 Display: 02:00:00 zone-time Sat |
|
Configure: clock timezone zone-time add 1
and clock summer-time ss one-off 1:00 Display: 04:00:00 ss Sat |
||
|
If the value of the original system clock ± “zone-offset” is in the summer-time range, the original system clock ± “zone-offset” + ”summer-offset” is displayed. |
Configure: clock datetime 1:00 Display: 02:00:00 zone-time Mon |
|
|
1, 2 and 3 or 1, 3 and 2 |
If the value of "date-time"±"zone-offset" is not in the summer-time range, "date-time"±"zone-offset" is displayed. |
Configure:
clock datetime 1:00 Display:
04:00:00 ss Mon |
|
If the value of "date-time"±"zone-offset" is in the summer-time range, "date-time"±"zone-offset"+”summer-offset” is displayed. |
Configure:
clock timezone zone-time add 1, clock summer-time ss one-off 1:00 Display:
01:00:00 zone-time Mon |
|
|
[1], 2, 3 and 1 or [1], 3, 2 and 1 |
If date-time is not in the summer time range, date-time is displayed. |
Configure: clock timezone zone-time add 1,
clock summer-time ss one-off 1:00 Display: 23:30:00 zone-time Mon |
|
date-time is in the summer time range: If the value of “date-time”-“summer-offset”
is not in the summer-time range, “date-time”-“summer-offset”
is displayed; |
Configure: clock timezone zone-time add
1, clock summer-time ss one-off 1:00 Display: 03:00:00 ss Tue |
Banners are prompt information displayed by the system when users are connected to the device, perform login authentication, and start interactive configuration. The administrator can set corresponding banners as needed.
At present, the system supports the following five kinds of welcome information.
l shell banner, also called session banner, displayed when a non Modem user enters user view.
l incoming banner, also called user interface banner, displayed when a user interface is activated by a Modem user.
l login banner, welcome information at login authentications, displayed when password and scheme authentications are configured.
l motd banner, welcome information displayed before authentication.
l legal banner, also called authorization information. The system displays some copyright or authorization information, and then displays the legal banner before a user logs in, waiting for the user to confirm whether to continue the authentication or login. If entering Y or pressing the Enter key, the user enters the authentication or login process; if entering N, the user quits the authentication or login process. Y and N are case insensitive.
When you configure a banner, the system supports two input modes. One is to input all the banner information right after the command keywords. The start and end characters of the input text must be the same but are not part of the banner information. In this case, the input text, together with the command keywords, cannot exceed 510 characters. The other is to input all the banner information in multiple lines by pressing the Enter key. In this case, up to 2000 characters can be input.
The latter input mode can be achieved in the following three ways:
l Press the Enter key directly after the command keywords, and end the setting with the % character. The Enter and % characters are not part of the banner information.
l Input a character after the command keywords at the first line, and then press the Enter key. End the setting with the character input at the first line. The character at the first line and the end character are not part of the banner information.
l Input multiple characters after the command keywords at the first line (with the first and last characters being different), then press the Enter key. End the setting with the first character at the first line. The first character at the first line and the end character are not part of the banner information.
Follow these steps to configure a banner:
|
To do… |
Use the command… |
Remarks |
|
Enter system view |
system-view |
— |
|
Configure the banner to be displayed at login |
header incoming text |
Optional |
|
Configure the banner to be displayed at login authentication |
header login text |
Optional |
|
Configure the authorization information before login |
header legal text |
Optional |
|
Configure the banner to be displayed when a user enters user view |
header shell text |
Optional |
|
Configure the banner to be displayed before login |
header motd text |
Optional |
Follow these steps to configure CLI hotkeys:
|
To do… |
Use the command… |
Remarks |
|
Enter system view |
system-view |
— |
|
Configure CLI hotkeys |
hotkey { CTRL_G | CTRL_L | CTRL_O | CTRL_T | CTRL_U } command |
Optional The <Ctrl+G>, <Ctrl+L> and <Ctrl+O> hotkeys are specified with command lines by default. |
|
Display hotkeys |
display hotkey |
Available in any view. Refer to Table 1-2 for hotkeys reserved by the system. |
& Note:
By default, the <Ctrl+G>, <Ctrl+L> and <Ctrl+O> hotkeys are configured with command line and the <Ctrl+T> and <Ctrl+U> commands are NULL.
l <Ctrl+G> corresponds to the display current-configuration command.
l <Ctrl+L> corresponds to the display ip routing-table command.
l <Ctrl+O> corresponds to the undo debugging all command.
Table 1-2 Hotkeys reserved by the system
|
Hotkey |
Function |
|
<Ctrl+A> |
Moves the cursor to the beginning of the current line. |
|
<Ctrl+B> |
Moves the cursor one character to the left. |
|
<Ctrl+C> |
Stops performing a command. |
|
<Ctrl+D> |
Deletes the character at the current cursor position. |
|
<Ctrl+E> |
Moves the cursor to the end of the current line. |
|
<Ctrl+F> |
Moves the cursor one character to the right. |
|
<Ctrl+H> |
Deletes the character to the left of the cursor. |
|
<Ctrl+K> |
Terminates an outgoing connection. |
|
<Ctrl+N> |
Displays the next command in the history command buffer. |
|
<Ctrl+P> |
Displays the previous command in the history command buffer. |
|
<Ctrl+R> |
Redisplays the current line information. |
|
<Ctrl+V> |
Pastes the content in the clipboard. |
|
<Ctrl+W> |
Deletes all the characters in a continuous string to the left of the cursor. |
|
<Ctrl+X> |
Deletes all the characters to the left of the cursor. |
|
<Ctrl+Y> |
Deletes all the characters to the right of the cursor. |
|
<Ctrl+Z> |
Exits to user view. |
|
<Ctrl+]> |
Terminates an incoming connection or a redirect connection. |
|
<Esc+B> |
Moves the cursor to the leading character of the continuous string to the left. |
|
<Esc+D> |
Deletes all the characters of the continuous string at the current cursor position and to the right of the cursor. |
|
<Esc+F> |
Moves the cursor to the front of the next continuous string to the right. |
|
<Esc+N> |
Moves the cursor down by one line (available before you press the Enter key) |
|
<Esc+P> |
Moves the cursor up by one line (available before you press the Enter key) |
|
<Esc+<> |
Specifies the cursor as the beginning of the clipboard. |
|
<Esc+>> |
Specifies the cursor as the ending of the clipboard. |
& Note:
These hotkeys are defined by the device. When you interact with the device from terminal software, these keys may be defined to perform other operations. If so, the definition of the terminal software will dominate.
All the commands are defaulted to different views and categorized into four levels: visit, monitor, system, and manage, identified respectively by 0 through 3. If you want to acquire a higher privilege, you must switch to a higher user level, and it requires password to do so for the security’s sake.
The following table describes the default level of the commands.
Table 1-3 Default command levels
|
Level |
Privilege |
Command |
|
0 |
Visit |
ping, tracert, telnet |
|
1 |
Monitor |
refresh, reset, send |
|
2 |
System |
All configuration commands except for those at manage level |
|
3 |
Manage |
FTP, TFTP, XMODEM, and file system operation commands |
Follow these steps to configure user level and command level:
|
To do… |
Use the command… |
Remarks |
|
Switch the user level |
super [ level ] |
Optional Available in user view. |
|
Enter system view |
system-view |
— |
|
Configure the password for switching the user level |
super password [ level user-level ] { simple | cipher } password |
Optional By default, no password is configured. |
|
Configure the command level in system view |
command-privilege level level view view command |
Optional |
& Note:
The commands available depend on your user level when you log onto a device. For example, if your user level is 3 and the command level of VTY 0 interface is 1, you can use commands below level 3 (inclusive).
Caution:
l When you configure the password for switching user level with the super password command, the user level is defaulted to 3 if no user level is specified.
l You can switch to a lower user level unconditionally. To switch to a higher user level, however, you need to enter the password needed (The password can be set with the super password command.). If the entered password is incorrect or no password is configured, the switch fails. Therefore, before switching to a higher user level, you should configure the password needed.
l You are recommended to use the default user level; otherwise the change of user level may bring inconvenience to your maintenance and operation.
|
To do… |
Use the command… |
Remarks |
|
Display information on system version |
display version |
— |
|
Display information on the system clock |
display clock |
|
|
Display information on terminal users |
display users [ all ] |
|
|
Display the configurations saved in the storage device |
display saved-configuration [ by-linenum ] |
— |
|
Display the current validated configurations |
display current-configuration [ [ configuration [ configuration ] | controller | interface [ interface-type ] [ interface-number ] ] [ by-linenum ] [ | { begin | include | exclude } text ] ] |
|
|
Display the valid configuration under current view |
display this [ by-linenum ] |
— |
|
Display clipboard information |
display clipboard |
|
|
Display and save statistics of each module’s running status |
display diagnostic-information |
— |
During daily maintenance or when the system is operating abnormally, you need to view each module’s running status to find the problem. Therefore, you are required to execute the corresponding display commands one by one. To collect more information one time, you can execute the display diagnostic-information command in any view to display statistics of each module’s running status. The execution of the display diagnostic-information command has the same effect as that of the commands display clock, display version, display device, and display current-configuration.
& Note:
l For the detailed description of the display users command, refer to the Login Commands part of the manual.
l The display commands discussed above are for the global configuration. Refer to the corresponding section for the display command for specific protocol and interface.
This section covers the following topics:
l Online Help with Command Lines
l Synchronous Information Output
l Command Line Error Information
CLI is an interaction interface between devices and users. Through CLI, you can configure your devices by entering commands and view the output information and verify your configurations, thus facilitating your configuration and management of your devices.
CLI provides the following features for you to configure and manage your devices:
l Hierarchical command protection where you can only execute the commands at your own or lower levels. Refer to Configuring User Levels and Command Levels for details.
l Easy access to on-line help by entering “?”
l&nb
