D-Link DGS-3312SR User manual

DGS-3312SR
Release 3.5
12-Port Gigabit Layer 3 Stackable Switch
Command Line Interface Reference Manual
Third Edition
(Oct 2005)
Version 0.35
Printed In China
RECYCLABLE

__________________________________________________________________________________
Information in this document is subject to change without notice.
© 2005 D-Link Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks
of Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Computer
Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
October 2005 P/N DGS3312SR.A3

Table of Contents
Introduction...................................................................................................................................................................................... 1
Using the Console CLI..................................................................................................................................................................... 4
Command Syntax ........................................................................................................................................................................... 10
Basic Switch Commands................................................................................................................................................................ 12
Switch Port Commands.................................................................................................................................................................. 24
Port Security Commands................................................................................................................................................................ 27
Network Management (SNMP) Commands .................................................................................................................................. 31
Switch Utility Commands .............................................................................................................................................................. 52
Network Monitoring Commands.................................................................................................................................................... 56
Multiple Spanning Tree Protocol (MSTP) Commands.................................................................................................................. 69
Forwarding Database Commands .................................................................................................................................................. 82
Broadcast Storm Control Commands............................................................................................................................................. 89
QoS Commands.............................................................................................................................................................................. 91
Port Mirroring Commands ............................................................................................................................................................. 99
VLAN Commands........................................................................................................................................................................ 104
Link Aggregation Commands ...................................................................................................................................................... 111
IP Commands (Including IP Multinetting)................................................................................................................................... 117
IGMP Commands......................................................................................................................................................................... 122
IGMP Snooping Commands ........................................................................................................................................................ 125
MAC Notification Commands ..................................................................................................................................................... 133
Access Authentication Control Commands.................................................................................................................................. 137
SSH Commands ........................................................................................................................................................................... 161
SSL Commands............................................................................................................................................................................ 169
802.1X Commands....................................................................................................................................................................... 174
Access Control List (ACL) Commands ....................................................................................................................................... 186
Traffic Segmentation Commands................................................................................................................................................. 195
Stacking Commands..................................................................................................................................................................... 197
D-Link Single IP Management Commands ................................................................................................................................. 200
Time and SNTP Commands......................................................................................................................................................... 210
ARP Commands........................................................................................................................................................................... 216
VRRP Commands ........................................................................................................................................................................ 220
Routing Table Commands............................................................................................................................................................ 227
Route Redistribution Commands ................................................................................................................................................. 231
BOOTP Relay Commands ........................................................................................................................................................... 237
DNS Relay Commands ................................................................................................................................................................ 241

RIP Commands.............................................................................................................................................................................245
DVMRP Commands .....................................................................................................................................................................248
PIM Commands ............................................................................................................................................................................253
IP Multicasting Commands...........................................................................................................................................................257
MD5 Configuration Commands ...................................................................................................................................................259
OSPF Configuration Commands ..................................................................................................................................................262
Command History List..................................................................................................................................................................282
Technical Specifications...............................................................................................................................................................284
VCCI Warning...................................................................................................................................................................................286

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1
INTRODUCTION
The switch can be managed through the switch’s serial port, Telnet, 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. Configuration and management of the switch
via the Web-based management agent is discussed in the User’s Guide.
Accessing the Switch via the Serial Port
The switch’s serial port’s default settings are as follows:
• 9600 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 RS-232 DB-9 cable.
With the serial port properly connected to a management computer, the following screen should be visible. If this screen does
not appear, try pressing Ctrl+r to refresh the console screen.
Figure 1-1. Initial CLI screen

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There is no initial username or password. Just press the Enter key twice to display the CLI input cursor −DGS-3312SR:4#.
This is the command line where all commands are input.
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. 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.
Figure 1-2. Boot Screen
The switch’s MAC address can also be found in the Web management program on the Switch 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.
The IP address may be set using the Command Line Interface (CLI) over the console serial port as follows:
1. 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.
2. 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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Figure 1-3. Assigning an IP Address
In the above example, the switch was assigned an IP address of 10.53.13.144/8 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 and the CLI or via the Web-based management agent using the above IP address to connect to the switch.

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2
USING THE CONSOLE CLI
The DGS-3312SR supports a console management interface that allows the user to connect to the switch’s management agent
via a serial port and a terminal or a computer running a terminal emulation program. The console can also be used over the
network using the TCP/IP Telnet protocol. The console program can be used to configure the switch to use an SNMP-based
network management software over the network.
This chapter describes how to use the console interface to access the switch, change its settings, and monitor its operation.
Note: Switch configuration settings are saved to non-volatile RAM using
the save command. The current configuration will then be retained in the
switch’s NV-RAM, and reloaded when the switch is rebooted. If the switch
is rebooted without using the save command, the last configuration saved
to NV-RAM will be loaded.
Connecting to the Switch
The console interface is used by connecting the Switch to a VT100-compatible terminal or a computer running an ordinary
terminal emulator program (e.g., the HyperTerminal program included with the Windows operating system) using an RS-232C
serial cable. Your terminal parameters will need to be set to:
• VT-100 compatible
• 9600 baud
• 8 data bits
• No parity
• One stop bit
• No flow control
You can also access the same functions over a Telnet interface. Once you have set an IP address for your Switch, you can use a
Telnet program (in VT-100 compatible terminal mode) to access and control the Switch. All of the screens are identical,
whether accessed from the console port or from a Telnet interface.
After the switch reboots and you have logged in, the console looks like this:

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Figure 2-1. Initial Console Screen
Commands are entered at the command prompt, DGS-3312SR:4#.
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.
Figure 2-2. The ? Command

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When you enter a command without its required parameters, the CLI will prompt you with a Next possible completions:
message.
Figure 2-3. Example Command Parameter Help
In this case, the command config account was entered with the parameter <username>. The CLI will then prompt you 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, you 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.

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Figure 2-4. Using the Up Arrow to Re-enter a Command
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 User name 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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Figure 2-5. The Next Available Commands Prompt
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, if you enter the show command with no additional parameters, the CLI will then display all of the possible next
parameters.
Figure 2-6. Next possible completions: Show Command

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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.

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3
COMMAND SYNTAX
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.
<angle brackets>
Purpose Encloses a variable or value that must be specified.
Syntax create ipif <ipif_name> vlan <vlan_name 32> ipaddress
<network_address>
Description In the above syntax example, you must supply an IP interface
name in the <ipif_name> space, a VLAN name in the
<vlan_name 32> space, and the network address in the
<network_address> space. Do not type the angle brackets.
Example Command create ipif Engineering vlan Design ipaddress
10.24.22.5/255.0.0.0
[square brackets]
Purpose Encloses a required value or set of required arguments. One
value or argument can be specified.
Syntax create account [admin | user]
Description In the above syntax example, you must specify either an admin
or a user level account to be created. Do not type the square
brackets.
Example Command create account admin
| vertical bar
Purpose Separates two or more mutually exclusive items in a list, one of
which must be entered.
Syntax show snmp [community | detail]
Description In the above syntax example, you must specify either
community, or detail. Do not type the backslash.
Example Command show snmp community
{braces}
Purpose Encloses an optional value or set of optional arguments.

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{braces}
Syntax reset {[config | system]}
Description In the above syntax example, you have the option to specify
config or system. It is not necessary to specify either optional
value, however the effect of the system reset is dependent on
which, if any, value is specified. Therefore, with this example
there are three possible outcomes of performing a system
reset. See the following chapter, Basic Commands for more
details about the reset command.
Example command reset config
Line Editing Key Usage
Delete Deletes the character under the cursor and then shifts the
remaining characters in the line to the left.
Backspace Deletes the character to the left of the cursor and shifts the
remaining characters in the line to the left.
Left Arrow Moves the cursor to the left.
Right Arrow Moves the cursor to the right.
Up Arrow Repeat the previously entered command. Each time the up
arrow is pressed, the command previous to that displayed
appears. This way it is 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.
Tab Shifts the cursor to the next field to the left.
Multiple Page Display Control Keys
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.

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4
BASIC SWITCH COMMANDS
The basic switch commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the
following table.
Command Parameters
create account [admin | user] <username 15>
config account <username 15>
show account
delete account <username 15>
show session
show switch
show config [current_config | config_in_NVRAM]
show serial_port
config serial_port {baud_rate [9600 | 19200 | 38400 | 115200] auto_logout [never |
2_minutes | 5_minutes | 10_minutes | 15_minutes]}
enable clipaging
disable clipaging
enable telnet <tcp_port_number 1-65535>
disable telnet
enable web <tcp_port_number 1-65535>
disable web
save
reboot
reset {[config | system]}
login
logout
Each command is listed, in detail, in the following sections.
create account
Purpose Used to create user accounts
Syntax create [admin | user] <username>
Description The create account command is used to create user accounts that
consist of a username of 1 to 15 characters and a password of 0
to 15 characters. Up to 8 user accounts can be created.
Parameters admin <username>
user <username>
Restrictions Only Administrator-level users can issue this command.

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create account
Usernames can be between 1 and 15 characters.
Passwords can be between 0 and 15 characters.
Example usage:
To create an administrator-level user account with the username “dlink”.
DGS-3312SR:4#create account admin dlink
Command: create account admin dlink
Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DGS-3312SR:4#
config account
Purpose Used to configure user accounts
Syntax config account <username>
Description The config account command configures a user account that has
been created using the create account command.
Parameters <username>
Restrictions Only Administrator-level users can issue this command.
Usernames can be between 1 and 15 characters.
Passwords can be between 0 and 15 characters.
Example usage:
To configure the user password of “dlink” account:
DGS-3312SR:4#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-3312SR:4#

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show account
Purpose Used to display user accounts
Syntax show account
Description Displays all user accounts created on the switch. Up to 8 user
accounts can exist on the switch at one time.
Parameters None.
Restrictions None.
Example usage:
To display the accounts created:
DGS-3312SR:4#show account
Command: show account
Current Accounts:
Username Access Level
--------------- ------------
dlink Admin
DGS-3312SR:4#
delete account
Purpose Used to delete an existing user account
Syntax delete account <username>
Description The delete account command deletes a user account that has been
created using the create account command.
Parameters <username>
Restrictions Only Administrator-level users can issue this command.
Example usage:
To delete the user account “System”:
DGS-3312SR:4#delete account System
Command: delete account System
Success.
DGS-3312SR:4#