D-Link xStack DGS-3420 Series User manual

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Table of Contents
Chapter 1 Using Command Line Interface...........................................................................................1
Chapter 2 Basic Management Commands..........................................................................................9
Chapter 3 802.1X Commands............................................................................................................32
Chapter 4 Access Authentication Control (AAC) Commands............................................................58
Chapter 5 Access Control List (ACL) Commands............................................................................104
Chapter 6 Access Control List (ACL) Egress Command List ..........................................................134
Chapter 7 ARP Commands..............................................................................................................153
Chapter 8 ARP Spoofing Prevention Commands............................................................................159
Chapter 9 Asymmetric VLAN Commands........................................................................................161
Chapter 10 Auto Configuration Commands...................................................................................164
Chapter 11 Basic IP Commands....................................................................................................167
Chapter 12 BPDU Attack Protection Commands...........................................................................178
Chapter 13 Cable Diagnostics Commands....................................................................................184
Chapter 14 CFM Commands.........................................................................................................187
Chapter 15 Command List History Commands .............................................................................217
Chapter 16 Command Logging Command List..............................................................................221
Chapter 17 Common Unicast Routing Command List...................................................................224
Chapter 18 Compound Authentication Commands .......................................................................230
Chapter 19 Debug Software Command List..................................................................................241
Chapter 20 DHCP Local Relay Commands...................................................................................278
Chapter 21 DHCP Relay Commands ............................................................................................282
Chapter 22 DHCP Server Commands...........................................................................................300
Chapter 23 DHCP Server Screening Commands..........................................................................332
Chapter 24 DHCPv6 Relay Command List....................................................................................345
Chapter 25 DHCPv6 Server Commands .......................................................................................350
Chapter 26 Digital Diagnostic Monitoring (DDM) Commands .......................................................366
Chapter 27 Domain Name System (DNS) Relay Commands .......................................................374
Chapter 28 Domain Name System (DNS) Resolver Commands ..................................................379
Chapter 29 DoS Attack Prevention Commands.............................................................................386
Chapter 30 D-Link Unidirectional Link Detection (DULD) Commands ..........................................391
Chapter 31 Energy Efficient Ethernet (EEE) Commands..............................................................394

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Chapter 32 Ethernet Ring Protection Switching (ERPS) Commands............................................396
Chapter 33 External Alarm Commands.........................................................................................406
Chapter 34 FDB Commands..........................................................................................................408
Chapter 35 File System Management Commands........................................................................417
Chapter 36 Filter Commands.........................................................................................................427
Chapter 37 Gratuitous ARP Commands........................................................................................430
Chapter 38 IGMP Proxy Commands .............................................................................................436
Chapter 39 IGMP Snooping Commands .......................................................................................441
Chapter 40 IGMP Snooping Multicast (ISM) VLAN Commands....................................................465
Chapter 41 IPv4/IPv6 Routing Commands....................................................................................477
Chapter 42 IP Tunnel Commands .................................................................................................485
Chapter 43 IPv6 NDP Commands.................................................................................................495
Chapter 44 IP-MAC-Port Binding (IMPB) Commands...................................................................502
Chapter 45 Japanese Web-based Access Control (JWAC) Commands.......................................529
Chapter 46 Jumbo Frame Commands...........................................................................................554
Chapter 47 LACP Configuration Commands.................................................................................557
Chapter 48 Layer 2 Protocol Tunneling (L2PT) Command List.....................................................559
Chapter 49 Limited Multicast IP Address Commands ...................................................................564
Chapter 50 Link Aggregation Commands......................................................................................573
Chapter 51 LLDP Commands........................................................................................................578
Chapter 52 Loopback Detection Commands.................................................................................602
Chapter 53 Loopback Interface Commands..................................................................................610
Chapter 54 MAC Notification Commands......................................................................................614
Chapter 55 MAC-based Access Control Commands ....................................................................619
Chapter 56 Mirror Commands........................................................................................................636
Chapter 57 MLD Proxy Commands...............................................................................................642
Chapter 58 MLD Snooping Commands.........................................................................................647
Chapter 59 MLD Snooping Multicast (MSM) VLAN Commands ...................................................668
Chapter 60 Modify Login Banner and Prompt Commands............................................................680
Chapter 61 Network Load Balancing (NLB) Commands ...............................................................684
Chapter 62 Network Management Commands..............................................................................690
Chapter 63 Network Monitoring Commands..................................................................................709
Chapter 64 OAM Commands.........................................................................................................729
Chapter 65 Packet Storm Commands ...........................................................................................737

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Chapter 66 Password Recovery Commands.................................................................................743
Chapter 67 Policy Route Commands.............................................................................................746
Chapter 68 Port Security Commands ............................................................................................750
Chapter 69 Power over Ethernet (PoE) Commands......................................................................759
Chapter 70 Power Saving Commands...........................................................................................764
Chapter 71 Precision Time Protocol (PTP) Commands ................................................................771
Chapter 4 Protocol VLAN Commands.............................................................................................790
Chapter 5 QoS Commands..............................................................................................................796
Chapter 6 Q-in-Q Command............................................................................................................814
Chapter 7 Routing Information Protocol (RIP) Command List.........................................................828
Chapter 8 RIPng Commands...........................................................................................................833
Chapter 9 RSPAN Commands.........................................................................................................837
Chapter 10 Safeguard Engine Commands....................................................................................844
Chapter 11 Secure File Transfer Protocol (SFTP) Commands.....................................................847
Chapter 12 sFlow Commands........................................................................................................850
Chapter 13 Single IP Management Commands ............................................................................862
Chapter 14 SMTP Commands.......................................................................................................872
Chapter 15 SNMPv1/v2/v3 Commands.........................................................................................878
Chapter 16 Spanning Tree Protocol (STP) commands .................................................................898
Chapter 17 SSH Commands..........................................................................................................912
Chapter 18 SSL Commands..........................................................................................................923
Chapter 19 Stacking Commands...................................................................................................930
Chapter 20 Static MAC-based VLAN Commands .........................................................................937
Chapter 21 Static Replication Commands.....................................................................................940
Chapter 22 Subnet VLAN Commands...........................................................................................948
Chapter 23 Switch Port Commands...............................................................................................954
Chapter 24 System Severity Commands.......................................................................................958
Chapter 25 Tech Support Commands ...........................................................................................960
Chapter 26 Time and SNTP Commands.......................................................................................963
Chapter 27 Traffic Segmentation Commands................................................................................971
Chapter 28 UDP Helper Commands..............................................................................................973
Chapter 29 Utility Commands........................................................................................................979
Chapter 30 Virtual Router Redundancy Protocol (VRRP) Commands........................................1006
Chapter 31 Voice VLAN Commands ...........................................................................................1013

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Chapter 32 VLAN Commands......................................................................................................1023
Chapter 33 VLAN Trunking Commands ......................................................................................1041
Chapter 34 Web-based Access Control (WAC) Commands.......................................................1046
Chapter 35 Weighted Random Early Detection (WRED) Commands.........................................1061
Appendix A Password Recovery Procedure.................................................................................1069
Appendix B System Log Entries...................................................................................................1071
Appendix C Trap Entries...............................................................................................................1103
Appendix D RADIUS Attributes Assignment.................................................................................1109

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Chapter 1 Using Command Line
Interface
The DGS-3420 Layer 2+ stackable Gigabit Ethernet switch series are members of the D-Link xStack®
family. Ranging from 10/100/1000Mbps edge switches to core gigabit switches, the xStack®switch
family has been future-proof designed to provide a stacking architecture with fault tolerance, flexibility,
port density, robust security and maximum throughput with a user-friendly management interface for
the networking professional.
The Switch can be managed through the Switch’s serial port, Telnet, SNMP or the Web-based
management agent. The Command Line Interface (CLI) can be used to configure and manage the
Switch via the serial port or Telnet interfaces.
This manual provides a reference for all of the commands contained in the CLI. Every command will
be introduced in terms of purpose, format, description, parameters, and examples. Configuration and
management of the Switch via the Web-based management agent are discussed in the Web UI
Reference Guide. For detailed information on installing hardware please also refer to the Harware
Installation Guide.
1-1 Accessing the Switch via the Serial Port
The Switch’s serial port’s default settings are as follows:
•115200 baud
•no parity
•8 data bits
•1 stop bit
A computer running a terminal emulation program capable of emulating a VT-100 terminal and a serial
port configured as above is then connected to the Switch’s serial port via an RJ-45 to RS-232 DB-9
convertor cable.
With the serial port properly connected to a management computer, the following screen should be
visible.
DGS-3420-28SC Gigabit Ethernet Switch
Command Line Interface
Firmware: Build 1.50.010
Copyright(C) 2013 D-Link Corporation. All rights reserved.
UserName:

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There is no initial username or password. Just press the Enter key twice to display the CLI input
cursor −DGS-3420-28SC:admin#.This is the command line where all commands are input.
1-2 Setting the Switch’s IP Address
Each Switch must be assigned its own IP Address, which is used for communication with an SNMP
network manager or other TCP/IP application (for example BOOTP, TFTP). The Switch’s default IP
address is 10.90.90.90 (for normal port). You can change the default Switch IP address to meet the
specification of your networking address scheme.
The Switch is also assigned a unique MAC address by the factory. This MAC address cannot be
changed, and can be found on the initial boot console screen – shown below.
Boot Procedure V1.00.003
-------------------------------------------------------------------------------
Power On Self Test ........................................ 100 %
MAC Address : 00-01-02-03-04-00
H/W Version : B1
Please Wait, Loading V1.50.010 Runtime Image .............. 100 %
UART init ................................................. 100 %
Starting runtime image
Device Discovery .......................................... 100 %
Configuration init ........................................ 100 %
Press any key to login...
The Switch’s MAC address can also be found in the Web management program on the Device
Information (Basic Settings) window on the Configuration menu.
The IP address for the Switch must be set before it can be managed with the Web-based manager.
The Switch IP address can be automatically set using BOOTP or DHCP protocols, in which case the
actual address assigned to the Switch must be known.
Starting at the command line prompt, enter the commands config ipif System ipaddress
xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy. Where the x’s represent the IP address to be assigned to the IP
interface named System and the y’s represent the corresponding subnet mask.
Alternatively, you can enter config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x’s
represent the IP address to be assigned to the IP interface named System and the zrepresents the
corresponding number of subnets in CIDR notation.
The IP interface named System on the Switch can be assigned an IP address and subnet mask which
can then be used to connect a management station to the Switch’s Telnet or Web-based management
agent.

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DGS-3420-28SC:admin# config ipif System ipaddress 10.24.22.100/255.0.0.0
Command: config ipif System ipaddress 10.24.22.100/8
Success.
DGS-3420-28SC:admin#
In the above example, the Switch was assigned an IP address of 10.24.22.100 with a subnet mask of
255.0.0.0. The system message Success indicates that the command was executed successfully.
The Switch can now be configured and managed via Telnet, SNMP MIB browser and the CLI or via
the Web-based management agent using the above IP address to connect to the Switch.
There are a number of helpful features included in the CLI. Entering the ?command will display a list
of all of the top-level commands.
DGS-3420-28SC:admin#?
Command: ?
..
?
cable_diag ports
cd
cfm linktrace
cfm lock md
cfm loopback
change drive
clear
clear address_binding dhcp_snoop binding_entry ports
clear address_binding nd_snoop binding_entry ports
clear arptable
clear attack_log
clear cfm pkt_cnt
clear counters
clear dhcp binding
clear dhcp conflict_ip
clear dhcpv6 binding
clear ethernet_oam ports
clear fdb
clear igmp_snooping data_driven_group
clear igmp_snooping statistics counter
CTRL+C ESC qQuit SPACE nNext Page ENTER Next Entry aAll
When entering a command without its required parameters, the CLI will prompt you with a Next
possible completions: message.

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DGS-3420-28SC:admin#config account
Command: config account
Next possible completions:
<username>
DGS-3420-28SC:admin#
In this case, the command config account was entered with the parameter <username>. The CLI will
then prompt to enter the <username> with the message, Next possible completions:. Every
command in the CLI has this feature, and complex commands have several layers of parameter
prompting.
In addition, after typing any given command plus one space, users can see all of the next possible
sub-commands, in sequential order, by repeatedly pressing the Tab key.
To re-enter the previous command at the command prompt, press the up arrow cursor key. The
previous command will appear at the command prompt.
DGS-3420-28SC:admin#config account
Command: config account
Next possible completions:
<username 15>
DGS-3420-28SC:admin#
In the above example, the command config account was entered without the required parameter
<username>, the CLI returned the Next possible completions: <username> prompt. The up arrow
cursor control key was pressed to re-enter the previous command (config account) at the command
prompt. Now the appropriate username can be entered and the config account command re-
executed.
All commands in the CLI function in this way. In addition, the syntax of the help prompts are the same
as presented in this manual −angle brackets < > indicate a numerical value or character string, braces
{ } indicate optional parameters or a choice of parameters, and brackets [ ] indicate required
parameters.
If a command is entered that is unrecognized by the CLI, the top-level commands will be displayed
under the Available commands: prompt.

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DGS-3420-28SC:admin#the
Available commands:
.. ? cable_diag cd
cfm change clear config
copy create debug del
delete dir disable download
enable erase format login
logout md move no
ping ping6 rd reboot
reconfig rename reset save
show smtp telnet traceroute
traceroute6 upload
DGS-3420-28SC:admin#
The top-level commands consist of commands such as show or config. Most of these commands
require one or more parameters to narrow the top-level command. This is equivalent to show what? or
config what? Where the what? is the next parameter.
For example, entering the show command with no additional parameters, the CLI will then display all
of the possible next parameters.
DGS-3420-28SC:admin#show
Command: show
Next possible completions:
802.1p 802.1x aaa access_profile
account accounting acct_client address_binding
arp_spoofing_prevention arpentry asymmetric_vlan
attack_log auth_client auth_diagnostics
auth_session_statistics auth_statistics authen
authen_enable authen_login authen_policy authentication
authorization autoconfig bandwidth_control boot_file
bpdu_protection broadcast_ping_reply cfm
command command_history community_encryption
config cpu current_config ddm
device_status dhcp dhcp_local_relay dhcp_relay
dhcp_server dhcpv6 dhcpv6_relay dhcpv6_server
dnsr dos_prevention dot1v_protocol_group
dscp duld eee
egress_access_profile egress_flow_meter environment
erps error ethernet_oam external_alarm
fdb filter flow_meter gratuitous_arp
greeting_message gvrp hol_prevention host_name
igmp igmp_proxy igmp_snooping ip_tunnel
ipfdb ipif ipif_ipv6_link_local_auto
ipmc_vlan_replication ipmc_vlan_replication_entry
iproute ipv6 ipv6route jumbo_frame

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jwac l2protocol_tunnel lacp_port led
limited_multicast_addr link_aggregation lldp
lldp_med log log_save_timing
log_software_module loopback loopdetect
mac_based_access_control mac_based_access_control_local
mac_based_vlan mac_notification max_mcast_group
mcast_filter_profile mirror mld_proxy
mld_snooping multicast multicast_fdb name_server
nlb out_band_ipif packet password_recovery
per_queue poe policy_route port
port_group port_security port_security_entry
port_vlan ports power_saving private_vlan
ptp pvid qinq radius
rcp rip ripng rmon
route router_ports rspan safeguard_engine
scheduling scheduling_mechanism serial_port
session sflow sftp sim
smtp snmp sntp ssh
ssl stack_device stack_information stacking_mode
storage_media_info stp subnet_vlan
switch syslog system_severity tacacs
tech_support telnet terminal tftp
time time_range traffic
traffic_segmentation trap trusted_host
udp_helper utilization vlan vlan_precedence
vlan_translation vlan_translation_profile vlan_trunk
voice_vlan vrrp wac wred
DGS-3420-28SC:admin#
In the above example, all of the possible next parameters for the show command are displayed. At the
next command prompt, the up arrow was used to re-enter the show command, followed by the
account parameter. The CLI then displays the user accounts configured on the Switch.
1-3 Command Syntax Symbols
The following symbols are used to describe how command entries are made and values and
arguments are specified in this manual. The online help contained in the CLI and available through the
console interface uses the same syntax.
Note: All commands are case-sensitive. Be sure to disable Caps Lock or any other
unwanted function that changes text case.
Syntax
Description
angle brackets < >
Encloses a variable or value. Users must specify the variable or value.
For example, in the syntax
create ipif <ipif_name 12> {<network_address>} <vlan_name 32>
{secondary | state [enable | disable] | proxy_arp [enable | disable]

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{local [enable | disable]}}
users must supply an IP interface name for <ipif_name 12> and a VLAN
name for <vlan_name 32> when entering the command. DO NOT TYPE
THE ANGLE BRACKETS.
square brackets [ ]
Encloses a required value or list of required arguments. Only one value or
argument must be specified. For example, in the syntax
create account [admin | operator | power_user | user] <username
15> {encrypt [plain_text | sha_1] <password>}
users must specify either the admin-, operator-, power_user-level or user-
level account when entering the command. DO NOT TYPE THE
SQUARE BRACKETS.
vertical bar |
Separates mutually exclusive items in a list. For example, in the syntax
reset {[config |system]} {force_agree}
users may choose config or system in the command. DO NOT TYPE THE
VERTICAL BAR.
braces { }
Encloses an optional value or a list of optional arguments. One or more
values or arguments can be specified. For example, in the syntax
reset {[config | system]} {force_agree}
users may choose config or system in the command. DO NOT TYPE THE
BRACES.
parentheses ( )
Indicates at least one or more of the values or arguments in the preceding
syntax enclosed by braces must be specified. For example, in the syntax
config dhcp_relay {hops <int 1-16> | time <sec 0-65535>}(1)
users have the option to specify hops or time or both of them. The "(1)"
following the set of braces indicates at least one argument or value within
the braces must be specified. DO NOT TYPE THE PARENTHESES.
ipif <ipif_name 12>
metric <value 1-31>
12 means the maximum length of the IP interface name.
1-31 means the legal range of the metric value.
1-4 Line Editing Keys
Keys
Description
Delete
Delete character under cursor and shift remainder of line to left.
Backspace
Delete character to left of cursor and shift remainder of line to left.
CTRL+R
Toggle on and off. When toggled on, inserts text and shifts previous
text to right.
Up Arrow
Repeats the previously entered command. Each time the up arrow is
pressed, the command previous to that displayed appears. This way it is

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
8
possible to review the command history for the current session. Use the
down arrow to progress sequentially forward through the command
history list.
Down Arrow
The down arrow will display the next command in the command history
entered in the current session. This displays each command sequentially
as it was entered. Use the up arrow to review previous commands.
Left Arrow
Move cursor to left.
Right Arrow
Move cursor to right
Tab
Help user to select appropriate token.
The screen display pauses when the show command output reaches the end of the page.
1-5 Multiple Page Display Control Keys
Keys
Description
Space
Displays the next page.
CTRL+C
Stops the display of remaining pages when multiple pages are to be
displayed.
ESC
Stops the display of remaining pages when multiple pages are to be
displayed.
n
Displays the next page.
p
Displays the previous page.
q
Stops the display of remaining pages when multiple pages are to be
displayed.
r
Refreshes the pages currently displayed.
a
Displays the remaining pages without pausing between pages.
Enter
Displays the next line or table entry.

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
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Chapter 2 Basic Management
Commands
create account [admin | operator | power_user | user] <username 15> {encrypt [plain_text | sha_1]
<password>}
enable password encryption
disable password encryption
config account <username 15> {encrypt [plain_text | sha_1] <password>}
show account
delete account <username 15>
show session
show switch
show environment
config temperature [trap | log] state [enable | disable]
config temperature threshold {high <temperature -500-500> | low <temperature -500-500>}(1)
show serial_port
config serial_port {baud_rate [9600 | 19200 | 38400 | 115200] | auto_logout [never | 2_minutes |
5_minutes | 10_minutes | 15_minutes]}(1)
enable clipaging
disable clipaging
enable telnet {<tcp_port_number 1-65535>}
disable telnet
enable web {<tcp_port_number 1-65535>}
disable web
save {[config <pathname> | log | all]}
reboot {force_agree}
reset {[config | system]} {force_agree}
login
logout
clear
config terminal width [default | <value 80-200>]
show terminal width
show device_status
2-1 create account
Description
This command creates user accounts. The username is between 1 and 15 characters, the password is
between 0 and 15 characters. The number of accounts (including admin, operator, power-user and
user) is up to eight.
Format
create account [admin | operator | power_user | user] <username 15> {encrypt [plain_text |
sha_1] <password>}

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Parameters
admin - Specify the name of the admin account.
operator - Specify the name of the operator account.
power_user - Specify a power user level account. The power user level is lower than the operator
level and higher than the user level.
user - Specify the name of the user account.
<username 15> - Specify a username of up to 15 characters.
encrypt - Specifies the encryption used.
plain_text - Specify the password in plain text form.
sha_1 - Specify the password in SHA-1 encrypted form.
<password> - The password for the user account. The length of a password in plain-text form
and encrypted form are different. For a plain-text form password, the password must be a
minimum of 0 characters and a maximum of 15 characters. For an encrypted form password,
the length is fixed to 35 bytes long. The password is case-sensitive.
Restrictions
Only Administrator-level users can issue this command.
Example
To create the Administrator-level user “dlink”:
DGS-3420-28SC:admin#create account admin dlink
Command: create account admin dlink
Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DGS-3420-28SC:admin#
To create the Operator-level user “Sales”:
DGS-3420-28SC:admin##create account operator Sales
Command: create account operator Sales
Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DGS-3420-28SC:admin#
To create the User-level user “System”:
DGS-3420-28SC:admin##create account user System
Command: create account user System

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Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DGS-3420-28SC:admin#
2-2 enable password encryption
Description
The user account configuration information will be stored in the configuration file, and can be applied
to the system later. If the password encryption is enabled, the password will be in encrypted form
when it is stored in the configuration file. When password encryption is disabled, the password will be
in plain text form when it is stored in the configuration file. However, if the created user account
directly uses the encrypted password, the password will still be in the encrypted form.
Format
enable password encryption
Parameters
None.
Restrictions
Only Administrator-level users can issue this command.
Example
To enable password encryption:
DGS-3420-28SC:admin#enable password encryption
Command: enable password encryption
Success.
DGS-3420-28SC:admin#
2-3 disable password encryption
Description
The user account configuration information will be stored in the configuration file, and can be applied
to the system later. If the password encryption is enabled, the password will be in encrypted form
when it is stored in the configuration file. When password encryption is disabled, the password will be
in plain text form when it is stored in the configuration file. However, if the created user account
directly uses the encrypted password, the password will still be in the encrypted form.

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Format
disable password encryption
Parameters
None.
Restrictions
Only Administrator-level users can issue this command.
Example
To disable password encryption:
DGS-3420-28SC:admin#disable password encryption
Command: disable password encryption
Success.
DGS-3420-28SC:admin#
2-4 config account
Description
When the password information is not specified in the command, the system will prompt the user to
input the password interactively. For this case, the user can only input the plain text password.
If the password is present in the command, the user can select to input the password in the plain text
form or in the encrypted form. The encryption algorithm is based on SHA-1.
Format
config account <username 15> {encrypt [plain_text | sha_1] <password>}
Parameters
<username 15> -Specify the name of the account. The account must already be defined. This name
can be up to 15 characters long.
encrypt - (Optional) Specify the encryption type, plain_text or sha_1.
plain_text - Specify the password in plain text form. For the plain text form, passwords must have
a minimum of 0 and a maximum of 15 characters. The password is case-sensitive
sha_1 - Specify the password in the SHA-1 encrypted form. For the encrypted form password, the
length is fixed to 35 bytes long. The password is case-sensitive.
<password> -Specify the password.

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Restrictions
Only Administrator-level users can issue this command.
Example
To configure the user password of the “dlink” account:
DGS-3420-28SC:admin#config account dlink
Command: config account dlink
Enter a old password:****
Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DGS-3420-28SC:admin#
To configure the user password of the “administrator” account:
DGS-3420-28SC:admin#config account administrator encrypt sha_1
*@&NWoZK3kTsExUV00Ywo1G5jlUKKv+toYg
Command: config account administrator encrypt sha_1
*@&NWoZK3kTsExUV00Ywo1G5jlUKKv+toYg
Success.
DGS-3420-28SC:admin#
2-5 show account
Description
This command is used to display user accounts that have been created.
Format
show account
Parameters
None.
Restrictions
Only Administrator-level users can issue this command.
Example
To display accounts that have been created:

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14
DGS-3420-28SC:admin#show account
Command: show account
Current Accounts:
Username Access Level
--------------- ------------
System User
Sales Operator
dlink Admin
DGS-3420-28SC:admin#
2-6 delete account
Description
This command is used to delete an existing account.
Format
delete account <username 15>
Parameters
<username 15> -Specify the name of the user who will be deleted.
Restrictions
Only Administrator-level users can issue this command. One active admin user must exist.
Example
To delete the user account “System”:
DGS-3420-28SC:admin#delete account System
Command: delete account System
Success.
DGS-3420-28SC:admin#
2-7 show session
Description
This command is used to display a list of current users which are logged in to CLI sessions.

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
15
Format
show session
Parameters
None.
Restrictions
Only Administrator and Operator-level users can issue this command.
Example
To display accounts a list of currently logged-in users:
DGS-3420-28SC:admin#show session
Command: show session
ID Live Time From Level User
-- ------------ ------------ ----- --------------------
8 23:37:42.270 Serial Port admin Anonymous
Total Entries: 1
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2-8 show switch
Description
This command is used to display the switch information.
Format
show switch
Parameters
None.
Restrictions
None.
Example
To display the switch information: