HP FlexFabric 12900E series Installation manual

HPE FlexFabric 12900E Switch Series
Fundamentals Command Reference
Software
version: Release 5112
Document version: 6W100-20220610

© Copyright 2022 Hewlett Packard Enterprise Development LP
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Contents
Basic CLI commands·····················································································1
alias····························································································································································1
display [ | [ by-linenum ] { begin | exclude | include } ]················································································2
display >·····················································································································································4
display >>···················································································································································5
display alias················································································································································6
display history-command ···························································································································6
display history-command all·······················································································································7
display hotkey ············································································································································8
hotkey·························································································································································9
quit ···························································································································································11
repeat·······················································································································································12
return························································································································································13
screen-length disable·······························································································································13
system-view ·············································································································································14
RBAC commands························································································15
description················································································································································15
display role···············································································································································15
display role feature···································································································································22
display role feature-group ························································································································23
feature······················································································································································25
interface policy deny ································································································································26
permit interface ········································································································································27
permit vlan················································································································································29
permit vpn-instance··································································································································30
role···························································································································································31
role default-role enable ····························································································································32
role feature-group·····································································································································33
rule···························································································································································34
super························································································································································37
super authentication-mode·······················································································································38
super default role ·····································································································································39
super password········································································································································40
vlan policy deny········································································································································41
vpn-instance policy deny··························································································································42
Login management commands····································································44
activation-key···········································································································································44
authentication-mode·································································································································46
auto-execute command····························································································································48
command accounting·······························································································································49
command authorization····························································································································50
databits·····················································································································································51
display line···············································································································································52
display telnet client···································································································································53
display user-interface·······························································································································53
display users············································································································································55
escape-key···············································································································································56
flow-control···············································································································································57
free line ····················································································································································58
free user-interface····································································································································59
history-command max-size······················································································································59
idle-timeout···············································································································································60
line····························································································································································61
line class ··················································································································································62
lock···························································································································································63

ii
lock reauthentication································································································································64
lock-key····················································································································································65
parity ························································································································································66
protocol inbound·······································································································································66
screen-length ···········································································································································68
send ·························································································································································69
set authentication password·····················································································································70
shell··························································································································································71
speed ·······················································································································································71
stopbits·····················································································································································72
telnet ························································································································································73
telnet client source···································································································································74
telnet ipv6·················································································································································75
telnet server acl········································································································································76
telnet server dscp·····································································································································76
telnet server enable··································································································································77
telnet server ipv6 acl································································································································77
telnet server ipv6 dscp·····························································································································78
telnet server ipv6 port·······························································································································79
telnet server port······································································································································79
terminal type·············································································································································80
user-interface···········································································································································81
user-interface class··································································································································82
user-role···················································································································································83
FTP commands ···························································································85
FTP server commands·····································································································································85
display ftp-server······································································································································85
display ftp-user·········································································································································85
free ftp user··············································································································································86
free ftp user-ip··········································································································································87
free ftp user-ip ipv6 ··································································································································87
ftp server acl·············································································································································88
ftp server dscp··········································································································································88
ftp server enable ······································································································································89
ftp server ipv6 dscp··································································································································89
ftp server ssl-server-policy·······················································································································90
ftp timeout ················································································································································91
FTP client commands ······································································································································91
?·······························································································································································91
append·····················································································································································92
ascii··························································································································································93
binary ·······················································································································································93
bye ···························································································································································94
cd ·····························································································································································94
cdup ·························································································································································95
close·························································································································································96
debug·······················································································································································96
delete ·······················································································································································97
dir·····························································································································································97
disconnect················································································································································99
display ftp client source····························································································································99
ftp·····························································································································································99
ftp client ipv6 source ······························································································································101
ftp client source······································································································································102
ftp ipv6····················································································································································103
get··························································································································································104
help ························································································································································105
lcd···························································································································································106
ls·····························································································································································107
mkdir ······················································································································································108
newer ·····················································································································································108

iii
open·······················································································································································109
passive···················································································································································110
put··························································································································································110
pwd·························································································································································111
quit ·························································································································································112
reget·······················································································································································112
rename···················································································································································113
reset·······················································································································································113
restart·····················································································································································114
rhelp·······················································································································································114
rmdir·······················································································································································116
rstatus ····················································································································································117
status······················································································································································119
system····················································································································································119
user························································································································································120
verbose ··················································································································································121
TFTP commands·······················································································122
tftp··························································································································································122
tftp client ipv6 source ·····························································································································124
tftp client source·····································································································································125
tftp ipv6···················································································································································126
tftp-server acl ·········································································································································127
tftp-server ipv6 acl··································································································································128
File system management commands ························································129
cd ···························································································································································129
copy························································································································································130
delete ·····················································································································································133
dir···························································································································································134
execute···················································································································································135
fdisk························································································································································135
file prompt ··············································································································································137
fixdisk·····················································································································································138
format·····················································································································································138
gunzip·····················································································································································139
gzip·························································································································································140
md5sum ·················································································································································141
mkdir ······················································································································································141
more·······················································································································································142
mount·····················································································································································142
move ······················································································································································143
pwd·························································································································································144
rename···················································································································································144
reset recycle-bin·····································································································································144
rmdir·······················································································································································145
sha256sum·············································································································································146
tar create················································································································································146
tar extract···············································································································································147
tar list······················································································································································149
umount···················································································································································149
undelete ·················································································································································150
Configuration file management commands················································152
archive configuration······························································································································152
archive configuration interval ·················································································································153
archive configuration location·················································································································154
archive configuration max······················································································································155
archive configuration server···················································································································156
archive configuration server password···································································································157
archive configuration server user···········································································································158
backup startup-configuration··················································································································159

iv
configuration commit······························································································································160
configuration commit delay ····················································································································160
configuration encrypt······························································································································161
configuration replace file························································································································162
display archive configuration··················································································································163
display current-configuration··················································································································164
display current-configuration diff············································································································165
display default-configuration ··················································································································167
display diff··············································································································································167
display saved-configuration····················································································································169
display startup········································································································································170
display this ·············································································································································171
reset saved-configuration·······················································································································172
restore startup-configuration··················································································································172
save························································································································································174
standby auto-update config····················································································································176
startup saved-configuration····················································································································176
Software upgrade commands····································································178
boot-loader file ·······································································································································178
boot-loader update·································································································································180
bootrom backup ·····································································································································181
bootrom restore······································································································································182
bootrom update······································································································································182
bootrom-update security-check enable··································································································183
display boot-loader·································································································································183
display install active ·······························································································································184
display install committed························································································································186
display version ·······································································································································188
display version-update-record················································································································189
install activate·········································································································································190
install commit ·········································································································································192
install deactivate·····································································································································193
reset version-update-record···················································································································194
version auto-update enable····················································································································194
version check ignore······························································································································195
Preprovisioning commands········································································197
display provision failed-config················································································································197
provision·················································································································································197
reset provision failed-config···················································································································198
slot··························································································································································199
Document conventions and icons······························································200
Conventions···················································································································································200
Network topology icons··································································································································201
Support and other resources ·····································································202
Accessing Hewlett Packard Enterprise Support·····························································································202
Accessing updates·········································································································································202
Websites ················································································································································203
Customer self repair·······························································································································203
Remote support······································································································································203
Documentation feedback ·······················································································································203
Index··········································································································205

1
Basic CLI commands
alias
Use alias to configure a command alias.
Use undo alias to delete a command alias.
Syntax
alias alias command
undo alias alias
Default
The device has a set of system-defined command aliases, as listed in Table 1.
Table 1 System-defined command aliases
Command alias
Command or command keyword
access-list
acl
end
return
erase
delete
exit
quit
hostname
sysname
logging
info-center
no
undo
show
display
write
save
Views
System view
Predefined user roles
network-admin
Parameters
alias: Specifies an alias, a case-sensitive string of 1 to 20 characters. An alias cannot be alias or
contain spaces.
command: Specifies a command string. Make sure the command string meets the syntax
requirements.
Usage guidelines
System-defined command aliases cannot be deleted.
You can configure one or more aliases for a command or the starting keywords of commands. Then,
you can use the aliases to execute the command or commands. If the command or commands have
undo forms, you can also use the aliases to execute the undo command or commands.

2
For example, if you configure the alias shiprt for display ip routing-table, you can enter
shiprt to execute the display ip routing-table command. If you configure the alias ship
for display ip, you can use ship to execute all commands that start with display ip:
•
Enter ship routing-table to execute the display ip routing-table command.
•
Enter ship interface to execute the display ip interface command.
The command string can include up to nine parameters. Each parameter starts with the dollar sign ($)
and a sequence number in the range of 1 to 9. For example, you can configure the alias shinc for
the display ip $1 |include $2 command. Then, to execute the display ip
routing-table |include Static command, you only need to enter shinc
routing-table Static. To execute the display ip interface |include
HundredGigE1/0/1 command, you only need to enter shinc interface
HundredGigE1/0/1.
Examples
# Configure shiprt as the alias for the display ip routing-table command and verify the
configuration.
<Sysname> system-view
[Sysname] alias shiprt display ip routing-table
[Sysname] shiprt
Destinations : 13Routes : 13
Destination/Mask Proto Pre Cost NextHop Interface
0.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
3.3.3.3/32 Static 60 0 192.168.1.62 Vlan1
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.0/32 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
127.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
169.254.0.0/24 Direct 0 0 169.254.0.188 Vlan1
169.254.0.0/32 Direct 0 0 169.254.0.188 Vlan1
169.254.0.188/32 Direct 0 0 127.0.0.1 InLoop0
169.254.0.255/32 Direct 0 0 169.254.0.188 Vlan1
224.0.0.0/4 Direct 0 0 0.0.0.0 NULL0
224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0
255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0
# Configure shinc as the alias for display ip $1 | include $2.
[Sysname] alias shinc display ip $1 | include $2
# Use alias shinc to display all static routes.
[Sysname] shinc routing-table Static
3.3.3.3/32 Static 60 0 192.168.1.62 Vlan1
Related commands
display alias
display [ | [ by-linenum ] { begin | exclude | include } ]
Use display [| [by-linenum ]{begin |exclude |include }to filter the output from
a display command with a regular expression.

3
Syntax
display command [|[by-linenum ]{begin |exclude |include }
regular-expression ]&<1-128>
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
command: Specifies the keywords and arguments of a display command. To display available
keywords and arguments, enter display ?.
[|[by-linenum ]{begin |exclude |include }regular-expression ]&<1-128>:
Specifies a maximum of 128 filter conditions.
•
by-linenum: Numbers the output lines. You need to specify this keyword in only one filter
condition.
•
begin: Displays the first line matching the specified regular expression and all subsequent
lines.
•
exclude: Displays all lines not matching the specified regular expression.
•
include: Displays all lines matching the specified regular expression.
•
regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256
characters.
Usage guidelines
To quickly locate certain lines in the output from a display command, you can use regular
expressions to filter the output, and display a number before each output line. For more information
about regular expressions, see Fundamentals Configuration Guide.
If you specify multiple filter conditions, the system displays the output lines that meet all the
conditions.
A line number is a 5-character string and is typically followed by a colon (:). If you specify both the
by-linenum and begin regular-expression options, a line number might be followed by a
colon or a hyphen (-).
•
Colon—The line matches the regular expression.
•
Hyphen—The line does not match the regular expression.
Examples
# Display the lines that contain vlan in the running configuration.
<Sysname> display current-configuration | include vlan
vlan 1
vlan 999
port access vlan 999
# Display log entries in the log buffer that contain both SHELL and VTY.
<Sysname> display logbuffer | include SEHLL | include VTY
%Sep 6 10:38:12:320 2018 Sysname SHELL/5/SHELL_LOGIN: VTY logged in from 169.254.100.171.
%Sep 6 10:52:32:576 2018 Sysname SHELL/5/SHELL_LOGOUT: VTY logged out from
169.254.100.171.
%Sep 6 16:03:27:100 2018 Sysname SHELL/5/SHELL_LOGIN: VTY logged in from 169.254.100.171.

4
%Sep 6 16:44:18:113 2018 Sysname SHELL/5/SHELL_LOGOUT: VTY logged out from
169.254.100.171.
# Display the running configuration, starting from the first line that contains user-group and
numbering the output lines.
<Sysname> display current-configuration | by-linenum begin user-group
114: user-group system
115-#
116-return
display >
Use display >to save the output from a display command to a separate file.
Syntax
display command >filename
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
command: Specifies the keywords and arguments of a display command. To display available
keywords and arguments, enter display ?.
filename: Specifies the name of the file that is used to save the output, a string of 1 to 63
characters.
Usage guidelines
The display commands show the configuration, statistics, and states of the device. You can use
the display >command to save the output to a file.
If the specified file does not exist, the system creates the file and saves the output to the file. If the file
already exists, the system overwrites the file.
Examples
# Save VLAN 1 settings to a separate file named vlan.txt.
<Sysname> display vlan 1 > vlan.txt
# Check the content of the vlan.txt file.
<Sysname> more vlan.txt
VLAN ID: 1
VLAN type: Static
Route interface: Not configured
Description: VLAN 0001
Name: VLAN 0001
Tagged ports: None
Untagged ports:
HundredGigE1/0/2

5
display >>
Use display >> to append the output from a display command to the end of a file.
Syntax
display command >> filename
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
command: Specifies the keywords and arguments of a display command. To display available
keywords and arguments, enter display ?.
filename: Specifies the name of the file that is used to save the output, a string of 1 to 63
characters.
Usage guidelines
The display commands show the configuration, statistics, and states of the device. You can use
display >> to save the output to a file.
If the specified file does not exist, the system creates the file and saves the output to the file. If the file
already exists, the system appends the output to the end of the file.
Examples
# Append the VLAN 999 settings to the end of the vlan.txt file.
<Sysname> display vlan 999 >> vlan.txt
<Sysname>
# Check the content of the vlan.txt file.
<Sysname> more vlan.txt
VLAN ID: 1
VLAN type: Static
Route interface: Not configured
Description: VLAN 0001
Name: VLAN 0001
Tagged ports: None
Untagged ports:
HundredGigE1/0/2
VLAN ID: 999
VLAN type: Static
Route interface: Configured
IPv4 address: 192.168.2.1
IPv4 subnet mask: 255.255.255.0
Description: For LAN Access
Name: VLAN 0999
Tagged ports: None
Untagged ports:

6
HundredGigE1/0/2
display alias
Use display alias to display command aliases.
Syntax
display alias [alias ]
Views
Any view
Predefined user roles
network-admin
network-operator
Parameters
alias: Specifies a command alias. If you do not specify this argument, the command displays all
command aliases.
Examples
# Display all command aliases.
<Sysname> display alias
Index Alias Command key
1 logging info-center
2 show display
3 shinc display ip $1 | include $2
4 erase delete
5 access-list acl
6 no undo
7 exit quit
8 end return
9 hostname sysname
10 write save
# Display the command alias shinc.
<Sysname> display alias shinc
Alias Command key
shinc display ip $1 | include $2
Related commands
alias
display history-command
Use display history-command to display all commands that are saved in the command history
buffer for the current CLI session.
Syntax
display history-command
Views
Any view

7
Predefined user roles
network-admin
network-operator
Usage guidelines
The system automatically saves commands you have successfully executed to the command history
buffer for the current CLI session. You can view them and execute them again.
By default, the system can save up to 10 commands in the buffer. You can use the
history-command max-size command to change the buffer size. To buffer a new command
when the buffer is full, the system deletes the oldest command entry in the buffer.
All commands in the command history buffer for the current CLI session will be cleared when you log
out.
Examples
# Display all commands saved in the command history buffer for the current CLI session.
<Sysname> display history-command
system-view
vlan 2
quit
Related commands
history-command max-size
display history-command all
Use display history-command all to display all commands that are saved in the command
history buffer for all CLI sessions.
Syntax
display history-command all
Views
Any view
Predefined user roles
network-admin
Usage guidelines
The system automatically saves commands successfully executed by users to the command history
buffer for all CLI sessions. Users can view them but cannot recall them from the buffer.
Up to 1024 commands can be saved in the command history buffer. To buffer a new command when
the buffer is full, the system deletes the oldest command entry in the buffer.
A user logout does not cause the system to delete commands from the history buffer for all CLI
sessions.
Examples
# Display all commands saved in the command history buffer for all CLI sessions.
<Sysname> display history-command all
Date Time Terminal Ip User
03/16/2017 20:03:33 vty0 192.168.1.26 **
Cmd:dis his all

8
03/16/2017 20:03:29 vty0 192.168.1.26 **
Cmd:sys
Table 2 Command output
Field
Description
Date Date when the command was executed.
Time Time when the command was executed.
Terminal User line used by the user.
Ip IP address of the terminal used by the user.
User Username used by the user if the user login authentication mode is
scheme. If the login authentication mode is none or password, this field
displays **.
Cmd Command string entered by the user.
Related commands
display history-command
display hotkey
Use display hotkey to display hotkey information.
Syntax
display hotkey
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display hotkey information.
<Sysname>display hotkey
----------------- Hotkeys -----------------
-Defined function hotkeys-
CTRL_A Move the cursor to the beginning of the line.
CTRL_B Move the cursor one character to the left.
CTRL_C Stop the current command.
CTRL_D Erase the character at the cursor.
CTRL_E Move the cursor to the end of the line.
CTRL_F Move the cursor one character to the right.
CTRL_H Erase the character to the left of the cursor.
CTRL_K Abort the connection request.
CTRL_N Display the next command in the history buffer.
CTRL_P Display the previous command in the history buffer.
CTRL_R Redisplay the current line.
CTRL_V Paste text from the clipboard.

9
CTRL_W Delete the word to the left of the cursor.
CTRL_X Delete all characters from the beginning of the line to the cursor.
CTRL_Y Delete all characters from the cursor to the end of the line.
CTRL_Z Return to the User View.
CTRL_] Kill incoming connection or redirect connection.
ESC_B Move the cursor back one word.
ESC_D Delete all characters from the cursor to the end of the word.
ESC_F Move the cursor forward one word.
ESC_N Move the cursor down a line.
ESC_P Move the cursor up a line.
ESC_< Move the cursor to the beginning of the clipboard.
ESC_> Move the cursor to the end of the clipboard.
-Defined command hotkeys-
CTRL_G display current-configuration
CTRL_L display ip routing-table
CTRL_O undo debugging all
-Undefined hotkeys-
CTRL_T NULL
CTRL_U NULL
Related commands
hotkey
hotkey
Use hotkey to configure a hotkey.
Use undo hotkey to restore the default.
Syntax
hotkey hotkey {command |function function |none }
undo hotkey hotkey
Default
Table 3 shows the default definitions for hotkeys.
Table 3 Default definitions for hotkeys
Hotkey
Function or command
Ctrl+A move_the_cursor_to_the_beginning_of_the_line: Moves the cursor to the
beginning of a line.
Ctrl+B move_the_cursor_one_character_to_the_left: Moves the cursor one
character to the left.
Ctrl+C stop_the_current_command: Stops the current command.
Ctrl+D erase_the_character_at_the_cursor: Deletes the character at the cursor.
Ctrl+E move_the_cursor_to_the_end_of_the_line: Moves the cursor to the end of a
line.

10
Hotkey
Function or command
Ctrl+F move_the_cursor_one_character_to_the_right: Moves the cursor one
character to the right.
Ctrl+G
display current-configuration
: Displays the running
configuration.
Ctrl+H erase_the_character_to_the_left_of_the_cursor: Deletes the character to the
left of the cursor.
Ctrl+K abort_the_connection_request: Aborts the connection request.
Ctrl+L
display ip routing-table
: Displays the IPv4 routing tableinformation.
Ctrl+Ndisplay_the_next_command_in_the_history_buffer: Displays the next
command in the history buffer.
Ctrl+O
undo debugging all
: Displays all debugging functions.
Ctrl+Pdisplay_the_previous_command_in_the_history_buffer: Displays the
previous command in the history buffer.
Ctrl+R redisplay_the_current_line: Redisplays the current line.
Ctrl+T
N/A
Ctrl+U
N/A
Ctrl+V paste_text_from_the_clipboard: Pastes text from the clipboard.
Ctrl+W delete_the_word_to_the_left_of_the_cursor: Deletes the word to the left of
the cursor.
Ctrl+X delete_all_characters_from_the_beginning_of_the_line_to_the_cursor:
Deletes all characters to the left of the cursor.
Ctrl+Y delete_all_characters_from_the_cursor_to_the_end_of_the_line: Deletes
all characters from the cursor to the end of the line.
Ctrl+Z return_to_the_User_View: Returns to user view.
Ctrl+] kill_incoming_connection_or_redirect_connection: Terminates the current
connection.
Esc+B move_the_cursor_back_one_word: Moves the cursor back one word.
Esc+D delete_all_characters_from_the_cursor_to_the_end_of_the_word: Deletes
all characters from the cursor to the end of the word.
Esc+F move_the_cursor_forward_one_word: Moves the cursor forward one word.
ESC_N move_the_cursor_down_a_line: Moves the cursor down a line.
This hotkey is effective before you press
Enter
.
ESC_P move_the_cursor_up_a_line: Moves the cursor up a line.
This hotkey is effective before you press Enter.
ESC_< move_the_cursor_to_the_beginning_of_the_clipboard: Moves the cursor to
the beginning of the clipboard.
ESC_> move_the_cursor_to_the_end_of_the_clipboard: Moves the cursor to the end
of the clipboard.
Views
System view
Predefined user roles
network-admin

11
Parameters
hotkey: Specifies a hotkey. To display the supported hotkeys, enter hotkey ? or see Table 3.
command: Specifies the command to be assigned to the hotkey.
function function: Specifies the function to be assigned to the hotkey. To display the
supported functions, enter hotkey hotkey function ?or see Table 3.
none: Removes the command or function assignment for the hotkey. After you remove the
assignment for a hotkey, pressing the hotkey does not execute any command or function.
Usage guidelines
The device supports a set of hotkeys. Pressing a hotkey executes the command or function assigned
to the hotkey. You can configure all the hotkeys except Ctrl+].
A hotkey can correspond to only one command or function. If you assign multiple commands or
functions to the same hotkey, the most recently assigned command or function takes effect.
A command or function can be assigned to multiple hotkeys. You can use any of those hotkeys to
execute the command or function.
If a hotkey is also defined by the terminal software you are using to interact with the device, the
terminal software definition takes effect.
Examples
# Assign move_the_cursor_to_the_beginning_of_the_line function to hotkey Ctrl+U.
<Sysname> system-view
[Sysname] hotkey ctrl_u function move_the_cursor_to_the_beginning_of_the_line
# Disable the configurable command or function assigned to hotkey Ctrl+A.
<Sysname> system-view
[Sysname] hotkey ctrl_a none
Related commands
display hotkey
quit
Use quit to return to the upper-level view.
Syntax
quit
Views
Any view
Predefined user roles
network-admin
network-operator
Usage guidelines
Executing this command in user view disconnects you from the device.
Examples
# Return from HundredGigE 1/0/1 interface view to system view and then to user view.
[Sysname-HundredGigE1/0/1] quit
[Sysname] quit

12
<Sysname>
repeat
Use repeat to repeat commands in the command history buffer for the current CLI session.
Syntax
repeat [number ][count times ][delay seconds ]
Views
Any view
Predefined user roles
network-admin
Parameters
number: Specifies the number of the most recently executed commands in the command history
buffer for the current CLI session that you want to execute. The value range is 1 to 10. The default is
1.
count times: Specifies the number of times that you want to execute the commands. The value
range is 0 to 4294967295. The default is 0. If you do not specify this option, the system keeps
executing the commands until you press the escape key to terminate the execution.
delay seconds: Specifies the time (in seconds) for the system to wait before executing the
commands again. The value range is 0 to 4294967295. The default is 1.
Usage guidelines
To repeat a command, first enter the view for the command. To repeat multiple commands, first enter
the view for the first command.
The repeat command executes commands in the order they were executed.
The system waits for your interaction when it repeats an interactive command.
Examples
# Configure the system to execute the two most recently executed commands (display
cpu-usage and display clock) three times at an interval of 10 seconds.
<Sysname> repeat 2 count 3 delay 10
<Sysname> display cpu
Slot 1 CPU 0 CPU usage:
33% in last 5 seconds
32% in last 1 minute
33% in last 5 minutes
<Sysname> display clock
07:02:18.230 UTC Thu 06/19/2017
<Sysname> display cpu-usage
Slot 1 CPU 0 CPU usage:
33% in last 5 seconds
32% in last 1 minute
33% in last 5 minutes
<Sysname> display clock
07:02:28.263 UTC Thu 06/19/2017
<Sysname> display cpu-usage
Slot 1 CPU 0 CPU usage:

13
33% in last 5 seconds
32% in last 1 minute
33% in last 5 minutes
<Sysname> display clock
07:02:38.293 UTC Thu 06/19/2017
Related commands
display history-command
escape-key
history-command max-size
return
Use return to return to user view from any other view except Tcl configuration view and Python
shell.
Syntax
return
Views
Any view except user view, Tcl configuration view, and Python shell
Predefined user roles
network-admin
network-operator
Usage guidelines
In any view except user view, Tcl configuration view, and Python shell, pressing Ctrl+Z has the same
effect as the return command.
To return to user view from Tcl configuration view, use the tclquit command.
To return to user view from the Python shell, use the exit() command.
Examples
# Return to user view from HundredGigE 1/0/1 interface view.
[Sysname-HundredGigE1/0/1] return
<Sysname>
screen-length disable
Use screen-length disable to disable pausing between screens of output for the current CLI
session.
Use undo screen-length disable to enable pausing between screens of output for the
current CLI session.
Syntax
screen-length disable
undo screen-length disable
Default
The default depends on the configuration of the screen-length command in user line view.

14
The following are the default settings for the screen-length command:
•
Pausing between screens of output.
•
Displaying up to 24 lines on a screen.
Views
User view
Predefined user roles
network-admin
Usage guidelines
If you disable pausing between screens of output, all output is displayed. The screen is refreshed
continuously until the final screen is displayed.
This command takes effect only for the current CLI session. When you are logged out, the default is
restored.
Examples
# Disable pausing between screens of output for the current CLI session.
<Sysname> screen-length disable
Related commands
screen-length
system-view
Use system-view to enter system view from user view.
Syntax
system-view
Views
User view
Predefined user roles
network-admin
network-operator
Examples
# Enter system view from user view.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname]