Using the Console CLI .................................................................................................................................................. 4
Switch Port Commands .............................................................................................................................................. 26
Port Security Commands ............................................................................................................................................ 29
Broadcast Storm Control Commands ........................................................................................................................97
Port Mirroring Commands .......................................................................................................................................110
Link Aggregation Commands...................................................................................................................................124
IP Commands (Including IP Multinetting) .............................................................................................................130
MAC Notification Commands................................................................................................................................... 149
Access Authentication Control Commands ............................................................................................................. 153
Access Control List (ACL) Commands..................................................................................................................... 210
D-Link Single IP Management Commands............................................................................................................. 244
Time and SNTP Commands ..................................................................................................................................... 256
DNS Relay Commands.............................................................................................................................................. 285
IP Multicasting Commands ......................................................................................................................................316
File System Commands.............................................................................................................................................347
Command History List ..............................................................................................................................................354
The DGS/DXS-3300 Layer 3 stackable Gigabit Ethernet switches are members of the D-Link xStack family. Ranging from
10/100Mbps 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.
This manual provides a reference for all of the commands contained in the CLI for members of the xStack DGS/DXS-3300
series, including the DGS-3324SRi, DGS-3324SR, DXS-3326GSR, and the DXS-3350SR. Examples present in this manual
may refer to any member of the xStack DGS/DXS-3300 series and may show different port counts, but are universal to this
series of switches, unless otherwise stated. Configuration and management of the Switch via the Web-based management agent
is discussed in the User’s Guide.
Please take note that if this device was purchased outside of Europe, certain cosmetic differences between the actual switch and
images in this document will be apparent to the reader, such as the faceplate and the manual cover. Changes are made to the
appearance of the device only and no configuration or internal hardware alterations occur.
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.
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 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.
There is no initial username or password. Just press the Enter key twice to display the CLI input cursor − DGS-3324SRi: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. The default switch IP address
can be changed 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, the user may 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 z represents 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.
In the above example, the Switch was assigned an IP address of 10.53.13.144 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.
The xStack DGS/DXS-3300 Series 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
• 115200 baud
• 8 data bits
• No parity
• One stop bit
• No flow control
The same functions can be accessed over a Telnet interface. Once an IP address has been set for your Switch, a Telnet program
(in VT-100 compatible terminal mode) can be used 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 the user has logged in, the console looks like this:
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, all of the next possible sub-commands can be viewed, 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.
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.
Figure 2-5. The 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 the show command has been entered with no additional parameters, the CLI will then display all of the possible
next parameters.
Figure 2-6. Next possible completions: Show Command
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.
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
Description In the above syntax example, supply an IP interface name in the
Purpose Encloses an optional value or set of optional arguments.
Syntax
Description In the above syntax example, the user has the option to specify
Example command
reset {[config | system]}
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.
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.
Parameters admin <username> - Entering this parameter will give the
Restrictions Only Administrator-level users can issue this command.
Example usage:
To create an administrator-level user account with the username “dlink”.
create [admin | user] <username 15>
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.
specified user administrative-level privileges over configuring
functions of the Switch. This user may perform any function listed
in this manual. A username of up to 15 characters must be
created with this command to identify the admin user.
user <username> - Entering this parameter will give the specified
user user-level privileges over configuring functions of the Switch.
User-level privileges limit the execution of many commands listed
in this manual. A username of up to 15 characters must be
created with this command to identify the user.
Usernames can be between 1 and 15 characters.
Passwords can be between 0 and 15 characters.
DGS-3324SRi: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-3324SRi:4#
config account
Purpose Used to configure user accounts
Syntax
Description
Parameters <username>- Enter the username of the account to be configured.
Restrictions Only Administrator-level users can issue this command.
config account <username>
The config account command configures a user account that
has been created using the create account command.
Usernames can be between 1 and 15 characters.
Example usage:
To configure the user password of “dlink” account:
Description This command is used to view information about the DEM-420X and
DEM-420CX uplink modules added to an xStack DGS/DXS-3300
series. Currently, only the DXS-3326GSR and the DXS-3350SR
members of the xStack DGS/DXS-3300 series have the capability to
add the optional DEM-420X or DEM-420CX module. Although the
DGS-3324SR and the DGS-3324SRi do not support the optional
module, information about the module can be viewed on these
switches if they are stacked with one of the switches that support the
optional module.
The following explains what is presented in the window:
Box ID – The ID of the switch in the switch stack.
Module Name – The name of the optional module. Currently,
switches in the xStack DGS/DXS-3300 series only support the DEM420X and the DEM-420CX optional modules.
Rev. – The hardware revision of the optional module.
Serial No. – The serial number associated with this particular
optional module.
Description – A brief description of the optional module including
port count and module type.
Parameters None.
Restrictions None.
Example usage:
To view information concerning the DEM-420X optional module added to an xStack DGS/DXS-3300 series switch.
Purpose Used to pause the scrolling of the console screen when the show
command displays more than one page.
Syntax
Description This command is used when issuing the show command which
Parameters None.
Restrictions Only administrator-level users can issue this command.
Example usage:
To enable pausing of the screen display when the command output reaches the end of the page:
enable clipaging
causes the console screen to rapidly scroll through several
pages. This command will cause the console to pause at the end
of each page. The default setting is enable.
DGS-3324SRi:4#enable clipaging
Command: enable clipaging
Success.
DGS-3324SRi:4#
disable clipaging
Purpose Used to disable the pausing of the console screen scrolling at
the end of each page when the show command displays more
than one screen of information.
Example usage:
To disable pausing of the screen display when show command output reaches the end of the page:
Syntax
Description This command is used to disable the pausing of the console
Parameters None.
Restrictions Only administrator-level users can issue this command.
DGS-3324SRi:4#disable clipaging
Command: disable clipaging
disable clipaging
screen at the end of each page when the show command
would display more than one screen of information.
Purpose Used to enable the HTTP-based management software on the
Switch.
Syntax
Description This command is used to enable the Web-based management
Parameters
Restrictions Only administrator-level users can issue this command.
Example usage:
To enable HTTP and configure port number:
enable web <tcp_port_number 1-65535>
software on the Switch. The user can specify the TCP port
number the Switch will use to listen for Telnet requests.
<tcp_port_number 1-65535> − The TCP port number. TCP ports
are numbered between 1 and 65535. The “well-known” port for
the Web-based management software is 80.
DGS-3324SRi:4#enable web 80
Command: enable web 80
Note: SSL will be disabled if web is enabled.
Success.
DGS-3324SRi:4#
disable web
Purpose Used to disable the HTTP-based management software on the
Syntax
Description This command disables the Web-based management software
Parameters None.
Restrictions Only administrator-level users can issue this command.
Are you sure want to proceed with the system reboot? (y/n)
Please wait, the Switch is rebooting...
reset
Purpose Used to reset the Switch to the factory default settings.
Syntax
Description This command is used to restore the Switch’s configuration to the
Parameters
Restrictions Only administrator-level users can issue this command.
Example usage:
To restore all of the Switch’s parameters to their default values:
DGS-3324SRi:4#reset config
Command: reset config
reset {[config | system]}
default settings assigned from the factory.
config− If the keyword ‘config’ is specified, all of the factory
default settings are restored on the Switch including the IP
address, user accounts, and the Switch history log. The Switch
will not save or reboot.
system− If the keyword ‘system’ is specified all of the factory
default settings are restored on the Switch. The Switch will save
and reboot after the settings are changed to default. Rebooting
will clear all entries in the Forwarding Data Base.
If no parameter is specified, the Switch’s current IP address, user
accounts, and the Switch history log are not changed. All other
parameters are restored to the factory default settings. The Switch
will not save or reboot.
Success.
DGS-3324SRi:4#
login
Purpose Used to log in a user to the Switch’s console.
Syntax
login
24
Page 28
login
Description This command is used to initiate the login procedure. The user
Parameters None.
Restrictions None.
Example usage:
To initiate the login procedure:
logout
Purpose Used to log out a user from the Switch’s console.
Ethernet ports. Only the ports listed in the <portlist> will be
affected.
all − Configure all ports on the Switch.
<portlist> − Specifies a range of ports to be configured. The port
list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. Then
the highest switch number, and the highest port number of the
range (also separated by a colon) are specified. The beginning
and end of the port list range are separated by a dash. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order.
auto − Enables auto-negotiation for the specified range of ports.
[10 | 100 | 1000] − Configures the speed in Mbps for the specified
range of ports.
[half | full]− Configures the specified range of ports as either full-
or half-duplex.
[master | slave] – The master and slave parameters refer to
connections running a 1000BASE-T cable for connection between
the Switch port and other device capable of a gigabit connection.
The master setting will allow the port to advertise capabilities
related to duplex, speed and physical layer type. The master
setting will also determine the master and slave relationship
between the two connected physical layers. This relationship is
necessary for establishing the timing control between the two
physical layers. The timing control is set on a master physical
layer by a local source. The slave setting uses loop timing, where
the timing comes form a data stream received from the master. If
one connection is set for 1000 master, the other side of the
26
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config ports
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the speed of port 3 of unit 1 to be 10 Mbps, full duplex, learning and state enable:
connection must be set for 1000 slave. Any other configuration will
result in a link down status for both ports.
flow_control [enable | disable] – Enable or disable flow control for
the specified ports.
learning [enable | disable] − Enables or disables the MAC address
learning on the specified range of ports.
state [enable | disable] − Enables or disables the specified range
of ports.
description <desc 32> - Enter an alphanumeric string of no more
than 32 characters to describe a selected port interface.
clear – Enter this command to clear the port description of the
selected port(s).
DGS-3324SRi:4#config ports 1:1-1:3 speed 10_full learning enable state enable
Command: config ports 1:1-1:3 speed 10_full learning enable state enable
Success.
DGS-3324SRi:4#
show ports
Purpose Used to display the current configuration of a range of ports.
Syntax
Description This command is used to display the current configuration of a
Parameters
show ports <portlist> {description}
range of ports.
<portlist> − Specifies a range of ports to be displayed. The port
list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. Then
the highest switch number, and the highest port number of the
range (also separated by a colon) are specified. The beginning
and end of the port list range are separated by a dash. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order.
Restrictions None.
Example usage:
To display the configuration of all ports on a standalone switch:
{description} – Adding this parameter to the command will allow
the user to view previously configured descriptions set on various
ports on the Switch.
Port Port Settings Connection Address
State Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl Learning
------ -------- --------------------- --------------------- -------1:1 Enabled Auto/Enabled Link Down Enabled
1:2 Enabled Auto/Enabled Link Down Enabled
1:3 Enabled Auto/Enabled Link Down Enabled
1:4 Enabled Auto/Enabled Link Down Enabled
1:5 Enabled Auto/Enabled Link Down Enabled
1:6 Enabled Auto/Enabled Link Down Enabled
1:7 Enabled Auto/Enabled Link Down Enabled
1:8 Enabled Auto/Enabled Link Down Enabled
1:9 Enabled Auto/Enabled Link Down Enabled
1:10 Enabled Auto/Enabled 100M/Full/802.3x Enabled
1:11 Enabled Auto/Enabled Link Down Enabled
1:12 Enabled Auto/Enabled Link Down Enabled
1:13 Enabled Auto/Disabled Link Down Enabled
1:14 Enabled Auto/Disabled Link Down Enabled
1:15 Enabled Auto/Disabled Link Down Enabled
1:16 Enabled Auto/Disabled Link Down Enabled
1:17 Enabled Auto/Disabled Link Down Enabled
1:18 Enabled Auto/Disabled Link Down Enabled
1:19 Enabled Auto/Disabled Link Down Enabled
1:20 Enabled Auto/Disabled Link Down Enabled
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh
Example usage;
To display port descriptions:
DGS-3324SRi:4#show ports 1:1 description
Command: show ports 1:1 description
Port Port Settings Connection Address
State Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl Learning
------ -------- --------------------- --------------------- -------1:1 Enabled Auto/Enabled Link Down Enabled
Description: Accounting
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh
Only the ports listed in the <portlist> are effected.
<portlist> − Specifies a range of ports to be configured. The port list is
specified by listing the lowest switch number and the beginning port
number on that switch, separated by a colon. Then the highest switch
number, and the highest port number of the range (also separated by a
colon) are specified. The beginning and end of the port list range are
separated by a dash. For example, 1:3 specifies switch number 1, port 3.
2:4 specifies switch number 2, port 4. 1:3-2:4 specifies all of the ports
between switch 1, port 3 and switch 2, port 4 − in numerical order.
all − Configure port security for all ports on the Switch.
admin_state [enable | disable] – Enable or disable port security for the
listed ports.
Restrictions Only administrator-level users can issue this command.
Example usage:
max_learning_addr <max_lock_no 0-64> - Use this to limit the number of
MAC addresses dynamically listed in the FDB for the ports.
lock_address_mode [Permanent | DeleteOnTimeout | DeleteOnReset] –
Indicates the method of locking addresses. The user has three choices:
Permanent – The locked addresses will age out only after the
Switch has been reset.
DeleteOnTimeout – The locked addresses will age out after the
aging timer expires.
DeleteOnReset – The locked addresses will not age out until the
Purpose Used to display the current port security configuration.
Syntax
Description This command is used to display port security information of the
Parameters
Restrictions None.
show port_security {ports <portlist>}
Switch ports. The information displayed includes port security admin
state, maximum number of learning address and lock mode.
ports <portlist>− Specifies a port or range of ports to be viewed.
The port list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. Then the
highest switch number, and the highest port number of the range
(also separated by a colon) are specified. The beginning and end of
the port list range are separated by a dash. For example, 1:3
specifies switch number 1, port 3. 2:4 specifies switch number 2, port
4. 1:3-2:4 specifies all of the ports between switch 1, port 3 and
switch 2, port 4 − in numerical order.
Example usage:
To display the port security configuration:
DGS-3324SRi:4#show port_security ports 1:1-1:19
Command: show port_security ports 1:1-1:19
Port# Admin State Max. Learning Addr. Lock Address Mode
Purpose Used to delete an entry from the Switch’s port security settings.
Syntax
Description This command is used to remove an entry from the port security
Parameters <vlan_name 32> - Enter the corresponding VLAN of the entry to
Restrictions Only administrator-level users can issue this command.
Example usage:
To delete an entry from the port security list:
DGS-3324SRi:4#delete port_security_entry_vlan_name default
port 1:1 mac_address 00-0C-6E-73-2B-C9
Command: delete port_security_entry_vlan_name default port
1:1 mac_address 00-0C-6E-73-2B-C9
port_security_entry_vlan_name <vlan_name 32> port
delete
<port> mac_address <macaddr>
entries learned by the Switch and entered into the forwarding
database.
delete.
port <port> - Enter the corresponding port of the entry to delete. The
port is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies switch
number 2, port 4.
mac_address <macaddr> - Enter the corresponding MAC address of
the entry to delete.
The network management commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in
the following table.
The xStack DGS/DXS-3300 series supports the Simple Network Management Protocol (SNMP) versions 1, 2c, and 3. The user
may specify which version of SNMP to use to monitor and control the Switch. The three versions of SNMP vary in the level of
security provided between the management station and the network device. The following table lists the security features of the
three SNMP versions:
SNMP Version Authentication Method Description
v1 Community String
v2c Community String
v3 Username
v3 MD5 or SHA
v3 MD5 DES or SHA DES
Each command is listed, in detail, in the following sections.
Community String is used for authentication − NoAuthNoPriv
Community String is used for authentication − NoAuthNoPriv
Username is used for authentication − NoAuthNoPriv
Authentication is based on the HMAC-MD5 or HMAC-SHA algorithms − AuthNoPriv
Authentication is based on the HMAC-MD5 or HMAC-SHA algorithms − AuthPriv.
DES 56-bit encryption is added based on the CBC-DES (DES-56) standard
Command Parameters
create snmp user create snmp user <SNMP_name 32> <groupname 32>
<username 32>− An alphanumeric name of up to 32 characters that will
identify the new SNMP user.
<groupname 32>− An alphanumeric name of up to 32 characters that
will identify the SNMP group the new SNMP user will be associated with.
encrypted – Allows the user to choose a type of authorization for
authentication using SNMP. The user may choose:
• by_password – Requires the SNMP user to enter a password
for authentication and privacy. The password is defined by
specifying the auth_password below. This method is
recommended.
• by_key – Requires the SNMP user to enter a encryption key for
authentication and privacy. The key is defined by specifying the
key in hex form below. This method is not recommended.
auth - The user may also choose the type of authentication algorithms
used to authenticate the snmp user. The choices are:
• md5 − Specifies that the HMAC-MD5-96 authentication level
will be used. md5 may be utilized by entering one of the
following:
<auth password 8-16> - An alphanumeric sting of
between 8 and 16 characters that will be used to authorize the
agent to receive packets for the host.
<auth_key 32-32> - Enter an alphanumeric sting of
exactly 32 characters, in hex form, to define the key that will be
used to authorize the agent to receive packets for the host.
• sha
priv – Adding the priv (privacy) parameter will allow for encryption in
addition to the authentication algorithm for higher security. The user may
choose:
• des – Adding this parameter will allow for a 56-bit encryption to
−
Specifies that the HMAC-SHA-96 authentication level will
be used.
<auth password 8-20> - An alphanumeric sting of
between 8 and 20 characters that will be used to authorize the
agent to receive packets for the host.
<auth_key 40-40> - Enter an alphanumeric sting of
exactly 40 characters, in hex form, to define the key that will
be used to authorize the agent to receive packets for the host.
be added using the DES-56 standard using:
<priv_password 8-16> - An alphanumeric string of
between 8 and 16 characters that will be used to encrypt
the contents of messages the host sends to the agent.
<priv_key 32-32> - Enter an alphanumeric key string of
exactly 32 characters, in hex form, that will be used to
encrypt the contents of messages the host sends to the
agent.
Example usage:
To create an SNMP user on the Switch:
• none – Adding this parameter will add no encryption.
Restrictions Only administrator-level users can issue this command.
<oid>− The object ID that identifies an object tree (MIB tree) that
will be deleted from the Switch.
DGS-3324SRi:4#delete snmp view dlinkview all
Command: delete snmp view dlinkview all
Success.
DGS-3324SRi:4#
Syntax
Description
Parameters
Restrictions None.
Example usage:
To display SNMP view configuration:
show snmp view {<view_name 32>}
The show snmp view command displays an SNMP view
previously created on the Switch.
<view_name 32>− An alphanumeric string of up to 32 characters
that identifies the SNMP view that will be displayed.
DGS-3324SRi:4#show snmp view
Command: show snmp view
Vacm View Table Settings
View Name Subtree View Type
-------------------- ------------------------- ---------ReadView 1 Included
WriteView 1 Included
NotifyView 1.3.6 Included
restricted 1.3.6.1.2.1.1 Included
restricted 1.3.6.1.2.1.11 Included
restricted 1.3.6.1.6.3.10.2.1 Included
restricted 1.3.6.1.6.3.11.2.1 Included
restricted 1.3.6.1.6.3.15.1.1 Included
CommunityView 1 Included
CommunityView 1.3.6.1.6.3 Excluded
CommunityView 1.3.6.1.6.3.1 Included
Purpose Used to create an SNMP community string to define the relationship
between the SNMP manager and an agent. The community string acts
like a password to permit access to the agent on the Switch. One or
more of the following characteristics can be associated with the
community string:
An Access List of IP addresses of SNMP managers that are permitted
to use the community string to gain access to the Switch’s SNMP
agent.
An MIB view that defines the subset of all MIB objects that will be
accessible to the SNMP community.
Read-write or read-only level permission for the MIB objects accessible
to the SNMP community.
Syntax
Description
Parameters
Restrictions Only administrator-level users can issue this command.
The create snmp community command is used to create an SNMP
community string and to assign access-limiting characteristics to this
community string.
<community_string 32> − An alphanumeric string of up to 32
characters that is used to identify members of an SNMP community.
This string is used like a password to give remote SNMP managers
access to MIB objects in the Switch’s SNMP agent.
view <view_name 32>− An alphanumeric string of up to 32 characters
that is used to identify the group of MIB objects that a remote SNMP
manager is allowed to access on the Switch.
read_only − Specifies that SNMP community members using the
community string created with this command can only read the
contents of the MIBs on the Switch.
read_write − Specifies that SNMP community members using the
community string created with this command can read from and write to
the contents of the MIBs on the Switch.
To create the SNMP community string “dlink:”
DGS-3324SRi:4#create snmp community dlink view ReadView read_write
Command: create snmp community dlink view ReadView read_write
Success.
DGS-3324SRi:4#
delete snmp community
Purpose Used to remove a specific SNMP community string from the
Restrictions Only administrator-level users can issue this command.
Example usage:
To delete the SNMP community string “dlink:”
show snmp community
The delete snmp community command is used to remove a
previously defined SNMP community string from the Switch.
<community_string 32> − An alphanumeric string of up to 32
characters that is used to identify members of an SNMP
community. This string is used like a password to give remote
SNMP managers access to MIB objects in the Switch’s SNMP
agent.
DGS-3324SRi:4#delete snmp community dlink
Command: delete snmp community dlink
Success.
DGS-3324SRi:4#
Purpose Used to display SNMP community strings configured on the
Syntax
Description
Parameters
Restrictions None.
Example usage:
To display the currently entered SNMP community strings:
Switch.
show snmp community {<community_string 32>}
The show snmp community command is used to display SNMP
community strings that are configured on the Switch.
<community_string 32>− An alphanumeric string of up to 32
characters that is used to identify members of an SNMP
community. This string is used like a password to give remote
SNMP managers access to MIB objects in the Switch’s SNMP
agent.
DGS-3324SRi:4#show snmp community
Command: show snmp community
SNMP Community Table
Community Name View Name Access Right
The create snmp group command creates a new SNMP group, or a
table that maps SNMP users to SNMP views.
<groupname 32>− An alphanumeric name of up to 32 characters that
will identify the SNMP group the new SNMP user will be associated
with.
v1 – Specifies that SNMP version 1 will be used. The Simple Network
Management Protocol (SNMP), version 1, is a network management
protocol that provides a means to monitor and control network
devices.
v2c – Specifies that SNMP version 2c will be used. The SNMP v2c
supports both centralized and distributed network management
strategies. It includes improvements in the Structure of Management
Information (SMI) and adds some security features.
v3 – Specifies that the SNMP version 3 will be used. SNMP v3
provides secure access to devices through a combination of
authentication and encrypting packets over the network. SNMP v3
adds:
Message integrity − Ensures that packets have not been
tampered with during transit.
Authentication − Determines if an SNMP message is from a
valid source.
Encryption − Scrambles the contents of messages to prevent
it being viewed by an unauthorized source.
noauth_nopriv − Specifies that there will be no authorization and no
encryption of packets sent between the Switch and a remote SNMP
manager.
auth_nopriv − Specifies that authorization will be required, but there
will be no encryption of packets sent between the Switch and a remote
SNMP manager.
auth_priv− Specifies that authorization will be required, and that
packets sent between the Switch and a remote SNMP manger will be
encrypted.
read_view – Specifies that the SNMP group being created can request
SNMP messages.
write_view – Specifies that the SNMP group being created has write
privileges.
<view_name 32>− An alphanumeric string of up to 32 characters that
is used to identify the group of MIB objects that a remote SNMP
manager is allowed to access on the Switch.
notify_view− Specifies that the SNMP group being created can
receive SNMP trap messages generated by the Switch’s SNMP agent.
Restrictions Only administrator-level users can issue this command.
41
Page 45
Example usage:
To create an SNMP group named “sg1:”
delete snmp group
Purpose Used to remove an SNMP group from the Switch.
Restrictions Only administrator-level users can issue this command.
Example usage:
To delete the SNMP group named “sg1”.
show snmp groups
delete snmp group <groupname 32>
The delete snmp group command is used to remove an SNMP
group from the Switch.
<groupname 32>− An alphanumeric name of up to 32 characters
that will identify the SNMP group to be deleted.
DGS-3324SRi:4#delete snmp group sg1
Command: delete snmp group sg1
Success.
DGS-3324SRi:4#
Purpose Used to display the group-names of SNMP groups currently
Syntax
Description
Parameters None.
Restrictions None.
Example usage:
To display the currently configured SNMP groups on the Switch:
configured on the Switch. The security model, level, and status of
each group are also displayed.
show snmp groups
The show snmp groups command displays the group-names of
SNMP groups currently configured on the Switch. The security
model, level, and status of each group are also displayed.
DGS-3324SRi:4#show snmp groups
Command: show snmp groups
Vacm Access Table Settings
Group Name : Group3
ReadView Name : ReadView
WriteView Name : WriteView
Notify View Name : NotifyView
Security Model : SNMPv3
Security Level : NoAuthNoPriv
Group Name : initial
ReadView Name : restricted
WriteView Name :
Notify View Name : restricted
Security Model : SNMPv3
Security Level : NoAuthNoPriv
Group Name : ReadGroup
ReadView Name : CommunityView
WriteView Name :
Notify View Name : CommunityView
Security Model : SNMPv1
Security Level : NoAuthNoPriv
Group Name : ReadGroup
ReadView Name : CommunityView
WriteView Name :
Notify View Name : CommunityView
Security Model : SNMPv2
Security Level : NoAuthNoPriv
Group Name : WriteGroup
ReadView Name : CommunityView
WriteView Name : CommunityView
Notify View Name : CommunityView
Security Model : SNMPv1
Security Level : NoAuthNoPriv
Group Name : WriteGroup
ReadView Name : CommunityView
WriteView Name : CommunityView
Notify View Name : CommunityView
Security Model : SNMPv2
Security Level : NoAuthNoPriv
The create snmp host command creates a recipient of SNMP
traps generated by the Switch’s SNMP agent.
<ipaddr> − The IP address of the remote management station
that will serve as the SNMP host for the Switch.
v1 – Specifies that SNMP version 1 will be used. The Simple
Network Management Protocol (SNMP), version 1, is a network
management protocol that provides a means to monitor and
control network devices.
v2c – Specifies that SNMP version 2c will be used. The SNMP
v2c supports both centralized and distributed network
management strategies. It includes improvements in the Structure
of Management Information (SMI) and adds some security
features.
v3 – Specifies that the SNMP version 3 will be used. SNMP v3
provides secure access to devices through a combination of
authentication and encrypting packets over the network. SNMP
v3 adds:
Message integrity − Ensures that packets have not been
tampered with during transit.
Authentication − Determines if an SNMP message is from
a valid source.
Restrictions Only administrator-level users can issue this command.
Example usage:
To create an SNMP host to receive SNMP messages:
Encryption − Scrambles the contents of messages to
prevent it being viewed by an unauthorized source.
noauth_nopriv− Specifies that there will be no authorization and
no encryption of packets sent between the Switch and a remote
SNMP manager.
auth_nopriv− Specifies that authorization will be required, but
there will be no encryption of packets sent between the Switch
and a remote SNMP manager.
auth_priv − Specifies that authorization will be required, and that
packets sent between the Switch and a remote SNMP manger
will be encrypted.
<auth_sting 32>− An alphanumeric string used to authorize a
remote SNMP manager to access the Switch’s SNMP agent.
DGS-3324SRi:4#create snmp host 10.48.74.100 v3 auth_priv public
Command: create snmp host 10.48.74.100 v3 auth_priv public
Purpose Used to remove a recipient of SNMP traps generated by the
Switch’s SNMP agent.
Syntax
Description
Parameters
Restrictions Only administrator-level users can issue this command.
Example usage:
To delete an SNMP host entry:
show snmp host
Purpose Used to display the recipient of SNMP traps generated by the
delete snmp host <ipaddr>
The delete snmp host command deletes a recipient of SNMP
traps generated by the Switch’s SNMP agent.
<ipaddr>− The IP address of a remote SNMP manager that will
receive SNMP traps generated by the Switch’s SNMP agent.
DGS-3324SRi:4#delete snmp host 10.48.74.100
Command: delete snmp host 10.48.74.100
Success.
DGS-3324SRi:4#
Switch’s SNMP agent.
Syntax
Description
Parameters
Restrictions None.
Example usage:
To display the currently configured SNMP hosts on the Switch:
show snmp host {<ipaddr>}
The show snmp host command is used to display the IP
addresses and configuration information of remote SNMP
managers that are designated as recipients of SNMP traps that
are generated by the Switch’s SNMP agent.
<ipaddr>− The IP address of a remote SNMP manager that will
receive SNMP traps generated by the Switch’s SNMP agent.
DGS-3324SRi:4#show snmp host
Command: show snmp host
SNMP Host Table
Host IP Address SNMP Version Community Name/SNMPv3 User Name
Restrictions Only administrator-level users can issue this command.
Example usage:
To create the trusted host:
create trusted_host <ipaddr>
The create trusted_host command creates the trusted host.
The Switch allows specification up to four IP addresses that are
allowed to manage the Switch via in-band SNMP or TELNET
based management software. These IP addresses must be
members of the Management VLAN. If no IP addresses are
specified, then there is nothing to prevent any IP address from
accessing the Switch, provided the user knows the Username
and Password.
<ipaddr>− The IP address of the trusted host.
DGS-3324SRi:4#create trusted_host 10.48.74.121
Command: create trusted_host 10.48.74.121
Success.
show trusted_host
Purpose Used to display a list of trusted hosts entered on the Switch using
Syntax
Description This command is used to display a list of trusted hosts entered on
Parameters None.
Restrictions None.
Example Usage:
To display the list of trust hosts:
DGS-3324SRi:4#
the create trusted_host command above.
show trusted_host
the Switch using the create trusted_host command above.
Purpose Used to disable SNMP authentication trap support.
Syntax
Description This command is used to disable SNMP authentication support on
Parameters None.
Restrictions Only administrator-level users can issue this command.
Example Usage:
To disable the SNMP authentication trap support:
config snmp system_contact
Purpose Used to enter the name of a contact person who is responsible for
disable snmp authenticate_traps
the Switch.
DGS-3324SRi:4#disable snmp authenticate_traps
Command: disable snmp authenticate_traps
Success.
DGS-3324SRi:4#
the Switch.
Syntax
Description
Parameters <sw_contact> - A maximum of 255 characters is allowed. A NULL
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the Switch contact to “
config snmp system_contact {<sw_contact>}
The config snmp system_contact command is used to enter the
name and/or other information to identify a contact person who is
responsible for the Switch. A maximum of 255 character can be
used.
The switch utility commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the
following table. Please note that commands concerning the CompactFlash card (cfg_fromCf, firmware_to CF, etc.) are specific
to the DGS-3324SRi only.
image_id <int 1-2>- This Switch holds two places for
storing firmware so the user may store an extra firmware file
on the Switch. image_id 1 will hold the current boot up
firmware in use on the Switch, unless otherwise configured.
unit [all | <unitid>] - all specifies all units (switches),
<unitid> is the unit ID of the Switch that will receive the
download.
<ipaddr> − The IP address of the TFTP server. The TFTP
server must be on the same IP subnet as the Switch.
<path_filename 64> − The DOS path and filename of the
firmware or switch configuration file on the TFTP server or
CompactFlash card. For example, C:\3226S.had.
increment − Allows the download of a partial switch
configuration file. This allows a file to be downloaded that will
change only the Switch parameters explicitly stated in the
configuration file. All other switch parameters will remain
unchanged.
Restrictions Only administrator-level users can issue this command.
Do not power off device before PROM upgrade process has completed!
Powering off the device during PROM upgrade may cause boot up device failure.
Upon upgrade completion, the device will reboot.
Are you sure you want to proceed with the PROM upgrade? (y/n) y
Connecting to server.................……….Done.
Download prom code...........………….. Done.
Do not power off!
Please wait, programming flash……….Done.
Saving current settings to NV-RAM…..Done.
Please wait, the switch is rebooting…
upload
Purpose Used to upload the current switch settings or the switch history log
to a TFTP server or a CompactFlash memory card.
Syntax
Description This command is used to upload either the Switch’s current
settings, the Switch’s history log or firmware to a TFTP server or a
CompactFlash memory card.
cfg_toTFTP − Specifies that the Switch’s current settings will be
uploaded to the TFTP server.
log_toTFTP − Specifies that the Switch’s current log will be
uploaded to the TFTP server.
firmware_toCF - Specifies that the Switch’s current firmware will
be uploaded to the CompactFlash card.
cfg_toCF - Specifies that the Switch’s current configuration
settings will be uploaded to the CompactFlash card.
log_toCF − Specifies that the Switch’s current log will be uploaded
to the CompactFlash card.
<ipaddr> − The IP address of the TFTP server. The TFTP
server must be on the same IP subnet as the Switch.
<path_filename 64>− Specifies the location of the Switch
configuration file on the TFTP server. This file will be
replaced by the uploaded file from the Switch.
image_id <int 1-2>- This Switch holds two places for
storing firmware so the user may store an extra firmware file
on the Switch. image_id 1 will hold the current firmware in
use on the Switch. The user may specify which firmware
version is to be uploaded to the CompactFlash card by
specifying the image_id of the firmware located on the
Switch. This parameter is only used for the firmware_toCF
parameter.
on the Switch. This Switch allows the user to hold two firmware
versions in its memory, labeled as image_id 1 and 2. Using this
command, the user may delete a firmware or set it as the boot up
firmware for the Switch. If the boot up firmware is not specified by
the user, image_id 1 will be the default boot up firmware.
memory to be configured.
delete – Selecting this parameter, along with the image_id will delete
this firmware from the Switch’s memory.
boot_up - Selecting this parameter, along with the image_id will set
this firmware as the default boot up runtime image firmware upon the
next reboot of the Switch.
Success.
DGS-3324SRi:4#
Example usage:
To configure a firmware as the boot up runtime image firmware:
Purpose Used to display the firmware section information.
Syntax
Description This command is used to display the firmware section information.
Parameters None.
Restrictions None.
Example usage:
To display the current firmware information on the Switch:
DGS-3324SRi:4#show firmware information
Command: show firmware information
Box ID Version Size(B) Update Time From User
--- -- -------- ------- ------------------- ------------------ --------------1 *1 4.00-B02 2360471 00000 days 00:00:00 Serial Port (PROM) Unknown
1 2 3.00-B13 1052372 00000 days 00:00:56 10.53.13.94 Anonymous
'*' means boot up firmware
(R) means firmware update thru SerialPort (RS232)
(T) means firmware update thru TELNET
(S) means firmware update thru SNMP
(W) means firmware update thru WEB
(SIM) means firmware update thru Single IP Management
DGS-3324SRi:4#
show firmware information
ping
Purpose Used to test the connectivity between network devices.
Syntax
Description The ping command sends Internet Control Message Protocol
Parameters <ipaddr> - Specifies the IP address of the host.
(ICMP) echo messages to a remote IP address. The remote IP
address will then “echo” or return the message. This is used to
confirm connectivity between the Switch and the remote device.
times <value 1-255> - The number of individual ICMP echo
messages to be sent. The maximum value is 255. The default is 0.
timeout <sec 1-99> - Defines the time-out period while waiting for a
response from the remote device. A value of 1 to 99 seconds can
be specified. The default is 1 second.
Pinging an IP address without the times parameter will ping the
target device an infinite amount of times.
ttl <value 1-60> - The time to live value of the trace route request.
This is the maximum number of routers the traceroute command will
cross while seeking the network path between two devices.
port <value 30000-64900> - The port number. Must be above
1024.The value range is from 30000 to 64900.
timeout <sec 1-65535> - Defines the time-out period while waiting
for a response from the remote device. The user may choose an
entry between 1 and 65535 seconds.
probe <value 1-9> - The probe value is the number of times the
Switch will send probe packets to the next hop on the intended
traceroute path. The default is 1.
Purpose Used to display statistics about the packets sent and received by
the Switch.
Syntax
Description This command is used to display statistics about packets sent and
Parameters
Restrictions None.
Example usage:
To display the packets analysis for port 7 of module 2:
show packet ports <portlist>
received by ports specified in the port list. The results are
separated into three tables, labeled A, B, and C in the window
above. Table A is relevant to the size of the packets, Table B is
relevant to the type of packets and Table C is relevant to the type
of frame associated with these packets.
<portlist>− Specifies a range of ports to be displayed. The port list
is specified by listing the lowest switch number and the beginning
port number on that switch, separated by a colon. Then the
highest switch number, and the highest port number of the range
(also separated by a colon) are specified. The beginning and end
of the port list range are separated by a dash. For example, 1:3
specifies switch number 1, port 3. 2:4 specifies switch number 2,
port 4. 1:3-2:4 specifies all of the ports between switch 1, port 3
and switch 2, port 4 − in numerical order.
DGS-3324SRi:4#show packet ports 2:7
Command: show packet ports 2:7
Port number : 2:7 (A) (B)
Frame Size Frame Counts Frames/sec Frame Type Total Total/sec
<portlist>− Specifies a range of ports to be displayed. The port
list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon.
Then the highest switch number, and the highest port number of
the range (also separated by a colon) are specified. The
beginning and end of the port list range are separated by a dash.
For example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports
between switch 1, port 3 and switch 2, port 4 − in numerical
order.
DGS-3324SRi:4#show errors ports 1:3
Command: show errors ports 1:3
RX Frames TX Frames
--------------- ---------------CRC Error 19 Excessive Deferral 0
Undersize 0 CRC Error 0
Oversize 0 Late Collision 0
Fragment 0 Excessive Collision 0
Jabber 11 Single Collision 0
Drop Pkts 20837 Collision 0
show utilization
Purpose Used to display real-time port and CPU utilization statistics.
Syntax
Description This command will display the real-time port and CPU utilization
Parameters cpu – Entering this parameter will display the current CPU
Restrictions None.
Example usage:
To display the port utilization statistics:
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh
show utilization [ports | cpu]
statistics for the Switch.
utilization of the Switch, as a percentage.
ports - Entering this parameter will display the current utilization
of all ports on the Switch.
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh
To display the current CPU utilization:
DGS-3324SRi:4#show utilization cpu
Command: show utilization cpu
CPU utilization :
--------------------------------------------------------------------------------------------Five seconds - 15% One minute - 25% Five minutes - 14%
DGS-3324SRi:4#
clear counters
Purpose Used to clear the Switch’s statistics counters.
Syntax
Description This command will clear the counters used by the Switch to compile
Parameters
clear counters {ports <portlist>}
statistics.
<portlist>− Specifies a range of ports to be configured. The port list
is specified by listing the lowest switch number and the beginning
port number on that switch, separated by a colon. Then the highest
switch number, and the highest port number of the range (also
separated by a colon) are specified. The beginning and end of the
port list range are separated by a dash. For example, 1:3 specifies
switch number 1, port 3. 2:4 specifies switch number 2, port 4. 1:32:4 specifies all of the ports between switch 1, port 3 and switch 2,
port 4 − in numerical order.
Restrictions Only administrator-level users can issue this command.
Description This command will clear the Switch’s history log.
Parameters None.
Restrictions Only administrator-level users can issue this command.
Example usage:
To clear the log information:
show log
Purpose Used to display the Switch history log.
Syntax
Description This command will display the contents of the Switch’s history log.
clear log
DGS-3324SRi:4#clear log
Command: clear log
Success.
DGS-3324SRi:4#
show log {index <value_list>}
Parameters
Restrictions None.
Example usage:
To display the Switch history log:
index <value_list>− Enter a value that corresponds to an entry
made in the log. Multiple entries may be made in the form of x-x
where x is the number of an entry in the log. The smallest number
(and therefore the earlier entry) will be first.
----- ---------- -------- ----------------------------------------------------4 2000-03-02 01:54:53 Port 1:13 link up, 100Mbps FULL duplex
3 2000-03-02 01:54:53 Spanning Tree Protocol is enabled
2 2000-03-02 01:54:53 Unit 1, System started up
1 2000-02-28 06:06:09 Spanning Tree Protocol is disabled
DGS-3324SRi:4#
enable syslog
Purpose Used to enable the system log to be sent to a remote host.
Syntax
Description
Parameters None.
Restrictions Only administrator-level users can issue this command.
Example usage:
To the syslog function on the Switch:
disable syslog
Purpose Used to disable the system log function on the Switch.
Syntax
enable syslog
The enable syslog command enables the system log to be sent
to a remote host.
DGS-3324SRi:4#enable syslog
Command: enable syslog
Success.
DGS-3324SRi:4#
disable syslog
Description
Parameters None.
Restrictions Only administrator-level users can issue this command.
Example usage:
To disable the syslog function on the Switch:
The disable syslog command disables the system log function on
the Switch. After disabling, Syslog entries will no longer be sent to
a remote host.
<index 1-4> − Specifies that the command will be applied to an
index of hosts. There are four available indexes, numbered 1
through 4.
severity − Severity level indicator, as shown below:
Bold font indicates that the corresponding severity level is
currently supported on the Switch.
Numerical Severity
Code
0 Emergency: system is unusable
1 Alert: action must be taken immediately
2 Critical: critical conditions
3 Error: error conditions
4 Warning: warning conditions
5 Notice: normal but significant condition
6 Informational: informational messages
7 Debug: debug-level messages
informational− Specifies that informational messages will be sent
to the remote host. This corresponds to number 6 from the list
above.
warning − Specifies that warning messages will be sent to the
remote host. This corresponds to number 4 from the list above.
all
−
Specifies that all of the currently supported syslog messages
that are generated by the Switch will be sent to the remote host.
facility− Some of the operating system daemons and processes
have been assigned Facility values. Processes and daemons that
have not been explicitly assigned a Facility may use any of the
"local use" facilities or they may use the "user-level" Facility.
Those Facilities that have been designated are shown in the
following: Bold font indicates the facility values that the Switch
currently supports.
Numerical Facility
Code
0 kernel messages
1 user-level messages
2 mail system
3 system daemons
4 security/authorization messages
5 messages generated internally by syslog
16 local use 0 (local0)
17 local use 1 (local1)
18 local use 2 (local2)
19 local use 3 (local3)
20 local use 4 (local4)
21 local use 5 (local5)
22 local use 6 (local6)
23 local use 7 (local7)
local0− Specifies that local use 0 messages will be sent to the
remote host. This corresponds to number 16 from the list above.
local1− Specifies that local use 1 messages will be sent to the
remote host. This corresponds to number 17 from the list above.
local2− Specifies that local use 2 messages will be sent to the
remote host. This corresponds to number 18 from the list above.
local3− Specifies that local use 3 messages will be sent to the
remote host. This corresponds to number 19 from the list above.
Restrictions Only administrator-level users can issue this command.
Example usage:
To create syslog host:
−
local4
remote host. This corresponds to number 20 from the list above.
local5− Specifies that local use 5 messages will be sent to the
remote host. This corresponds to number 21 from the list above.
local6− Specifies that local use 6 messages will be sent to the
remote host. This corresponds to number 22 from the list above.
local7 − Specifies that local use 7 messages will be sent to the
remote host. This corresponds to number 23 from the list above.
udp_port <udp_port_number> − Specifies the UDP port number
that the syslog protocol will use to send messages to the remote
host.
ipaddress <ipaddr>− Specifies the IP address of the remote host
where syslog messages will be sent.
state [enable | disable]− Allows the sending of syslog messages
to the remote host, specified above, to be enabled and disabled.
DGS-3324SRi:4#create syslog host 1 severity all facility local0 ipaddress
10.53.13.94 state enable
Command: create syslog host 1 severity all facility local0 ipaddress
10.53.13.94 state enable
Success.
DGS-3324SRi:4#
Specifies that local use 4 messages will be sent to the
The config syslog host command is used to configure the syslog
protocol to send system log information to a remote host.
<index 1-4> − Specifies that the command will be applied to an index
of hosts. There are four available indexes, numbered 1 through 4.
severity − Severity level indicator. These are described in the
following:
Bold font indicates that the corresponding severity level is currently
supported on the Switch.
Numerical Severity
Code
0 Emergency: system is unusable
1 Alert: action must be taken immediately
2 Critical: critical conditions
3 Error: error conditions
4 Warning: warning conditions
5 Notice: normal but significant condition
6 Informational: informational messages
7 Debug: debug-level messages
informational− Specifies that informational messages will be sent to
the remote host. This corresponds to number 6 from the list above.
warning − Specifies that warning messages will be sent to the
remote all − Specifies that all of the currently supported syslog
messages that are generated by the Switch will be sent to the
remote host.
facility− Some of the operating system daemons and processes
have been assigned Facility values. Processes and daemons that
have not been explicitly assigned a Facility may use any of the "local
use" facilities or they may use the "user-level" Facility. Those
Facilities that have been designated are shown in the following:
Bold font indicates the facility values the Switch currently supports.
host. This corresponds to number 4 from the list above.
Numerical Facility
Code
0 kernel messages
1 user-level messages
2 mail system
3 system daemons
4 security/authorization messages
5 messages generated internally by syslog
6 line printer subsystem
16 local use 0 (local0)
17 local use 1 (local1)
18 local use 2 (local2)
19 local use 3 (local3)
20 local use 4 (local4)
21 local use 5 (local5)
22 local use 6 (local6)
23 local use 7 (local7)
local0 − Specifies that local use 0 messages will be sent to the
remote host. This corresponds to number 16 from the list above.
local1− Specifies that local use 1 messages will be sent to the
remote host. This corresponds to number 17 from the list above.
local2− Specifies that local use 2 messages will be sent to the
remote host. This corresponds to number 18 from the list above.
local3− Specifies that local use 3 messages will be sent to the
remote host. This corresponds to number 19 from the list above.
Example usage:
To configure a syslog host:
local4− Specifies that local use 4 messages will be sent to the
remote host. This corresponds to number 20 from the list above.
local5− Specifies that local use 5 messages will be sent to the
remote host. This corresponds to number 21 from the list above.
local6− Specifies that local use 6 messages will be sent to the
remote host. This corresponds to number 22 from the list above.
local7− Specifies that local use 7 messages will be sent to the
remote host. This corresponds to number 23 from the list above.
udp_port <udp_port_number>− Specifies the UDP port number that
the syslog protocol will use to send messages to the remote host.
ipaddress <ipaddr>− Specifies the IP address of the remote host
where syslog messages will be sent.
state [enable | disable] − Allows the sending of syslog messages to
the remote host, specified above, to be enabled and disabled.
Restrictions Only administrator-level users can issue this command.
DGS-3324SRi:4#config syslog host 1 severity all
Command: config syslog host 1 severity all
facility− Some of the operating system daemons and processes
have been assigned Facility values. Processes and daemons that
have not been explicitly assigned a Facility may use any of the "local
use" facilities or they may use the "user-level" Facility. Those
Facilities that have been designated are shown in the following:
Bold font indicates that the facility values the Switch currently
supports.
Numerical Facility
Code
0 kernel messages
1 user-level messages
2 mail system
3 system daemons
4 security/authorization messages
5 messages generated internally by syslog
6 line printer subsystem
7 network news subsystem
8 UUCP subsystem
9 clock daemon
10 security/authorization messages
11 FTP daemon
12 NTP subsystem
13 log audit
14 log alert
15 clock daemon
16 local use 0 (local0)
17 local use 1 (local1)
18 local use 2 (local2)
19 local use 3 (local3)
20 local use 4 (local4)
21 local use 5 (local5)
22 local use 6 (local6)
23 local use 7 (local7)
local0 − Specifies that local use 0 messages will be sent to the
remote host. This corresponds to number 16 from the list above.
local1− Specifies that local use 1 messages will be sent to the
remote host. This corresponds to number 17 from the list above.
local2− Specifies that local use 2 messages will be sent to the
remote host. This corresponds to number 18 from the list above.
local3− Specifies that local use 3 messages will be sent to the
remote host. This corresponds to number 19 from the list above.
local4− Specifies that local use 4 messages will be sent to the
remote host. This corresponds to number 20 from the list above.
local5− Specifies that local use 5 messages will be sent to the
remote host. This corresponds to number 21 from the list above
local6− Specifies that local use 6 messages will be sent to the
remote host. This corresponds to number 22 from the list above.
local7− Specifies that local use 7 messages will be sent to the
remote host. This corresponds to number 23 from the list above.
udp_port <udp_port_number>− Specifies the UDP port number that
the syslog protocol will use to send messages to the remote host.
state [enable | disable] − Allows the sending of syslog messages to
Description This command is used to configure the system severity levels on the
Switch. When an event occurs on the Switch, a message will be sent
to the SNMP agent (trap), the Switch’s log or both. Events occurring
on the Switch are separated into three main categories.
• Information – Events classified as information are basic events
occurring on the Switch that are not deemed as problematic,
such as enabling or disabling various functions on the Switch.
• Warning - Events classified as warning are problematic events
that are not critical to the overall function of the Switch but do
require attention, such as unsuccessful downloads or uploads
and failed logins.
• Critical – Events classified as critical are fatal exceptions
occurring on the Switch, such as hardware failures or spoofing
attacks.
Parameters Choose one of the following to identify where severity messages are
to be sent.
• trap – Entering this parameter will define which events
occurring on the Switch will be sent to a SNMP agent for
analysis.
• log – Entering this parameter will define which events
occurring on the Switch will be sent to the Switch’s log for
analysis.
• all – Entering this parameter will define which events occurring
Choose one of the following to identify what type of severity
warnings are to be sent to the destination entered above.
• critical – Entering this parameter along with the proper
• warning – Entering this parameter along with the proper
• information – Entering this parameter along with the proper
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the system severity:
on the Switch will be sent to a SNMP agent and the Switch’s
log for analysis.
destination, stated above, will instruct the Switch to send only
critical events to the Switch’s log or SNMP agent.
destination, stated above, will instruct the Switch to send
critical and warning events to the Switch’s log or SNMP agent.
destination, stated above, will instruct the Switch to send
informational, warning and critical events to the Switch’s log or
SNMP agent.
This switch supports three versions of the Spanning Tree Protocol; 802.1d STP, 802.1w Rapid STP and 802.1s MSTP. Multiple
Spanning Tree Protocol, or MSTP, is a standard defined by the IEEE community that allows multiple VLANs to be mapped to a
single spanning tree instance, which will provide multiple pathways across the network. Therefore, these MSTP configurations
will balance the traffic load, preventing wide scale disruptions when a single spanning tree instance fails. This will allow for
faster convergences of new topologies for the failed instance. Frames designated for these VLANs will be processed quickly
and completely throughout interconnected bridges utilizing either of the three spanning tree protocols (STP, RSTP or MSTP).
This protocol will also tag BDPU packets so receiving devices can distinguish spanning tree instances, spanning tree regions
and the VLANs associated with them. These instances will be classified by an instance_id. MSTP will connect multiple
spanning trees with a Common and Internal Spanning Tree (CIST). The CIST will automatically determine each MSTP region,
its maximum possible extent and will appear as one virtual bridge that runs a single spanning tree. Consequentially, frames
assigned to different VLANs will follow different data routes within administratively established regions on the network,
continuing to allow simple and full processing of frames, regardless of administrative errors in defining VLANs and their
respective spanning trees. Each switch utilizing the MSTP on a network will have a single MSTP configuration that will have
the following three attributes:
a) A configuration name defined by an alphanumeric string of up to 32 characters (defined in the config stp mst_config_id
command as name <string>).
b) A configuration revision number (named here as a revision_level) and;
c) A 4096 element table (defined here as a vid_range) which will associate each of the possible 4096 VLANs supported
by the Switch for a given instance.
To utilize the MSTP function on the Switch, three steps need to be taken:
a) The Switch must be set to the MSTP setting (config stp version)
b) The correct spanning tree priority for the MSTP instance must be entered (config stp priority).
c) VLANs that will be shared must be added to the MSTP Instance ID (config stp instance_id).
The Multiple Spanning Tree Protocol commands in the Command Line Interface (CLI) are listed (along with the appropriate
parameters) in the following table.
maxage <value 6-40>− This value may be set to ensure that old
information does not endlessly circulate through redundant paths
in the network, preventing the effective propagation of the new
information. Set by the Root Bridge, this value will aid in
determining that the Switch has spanning tree configuration
values consistent with other devices on the bridged LAN. If the
value ages out and a BPDU has still not been received from the
Root Bridge, the Switch will start sending its own BPDU to all
other switches for permission to become the Root Bridge. If it
turns out that your switch has the lowest Bridge Identifier, it will
become the Root Bridge. The user may choose a time between 6
and 40 seconds. The default value is 20.
maxhops <value 1-20> - The number of hops between devices in
a spanning tree region before the BPDU (bridge protocol data
unit) packet sent by the Switch will be discarded. Each switch on
the hop count will reduce the hop count by one until the value
reaches zero. The Switch will then discard the BDPU packet and
the information held for the port will age out. The user may set a
hop count from 1 to 20. The default is 20.
hellotime <value 1-10>− The user may set the time interval
between transmission of configuration messages by the root
device in STP, or by the designated router in RSTP, thus stating
that the Switch is still functioning. A time between 1 and 10
seconds may be chosen, with a default setting of 2 seconds.
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure STP with maxage 18 and maxhops of 15:
In MSTP, the spanning tree is configured by port and
therefore, the hellotime must be set using the configure stp ports
command for switches utilizing the Multiple Spanning Tree
Protocol.
forwarddelay <value 4-30>− The maximum amount of time (in
seconds) that the root device will wait before changing states. The
user may choose a time between 4 and 30 seconds. The default is
15 seconds.
txholdcount <value 1-10> - The maximum number of BDPU Hello
packets transmitted per interval. Default value = 3.
fbpdu [enable | disable] − Allows the forwarding of STP BPDU
packets from other network devices when STP is disabled on the
Switch. The default is enable.
<portlist>− Specifies a range of ports to be configured. The port
list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. Then
the highest switch number, and the highest port number of the
range (also separated by a colon) are specified. The beginning
and end of the port list range are separated by a dash. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order.
externalCost− This defines a metric that indicates the relative cost
of forwarding packets to the specified port list. Port cost can be set
automatically or as a metric value. The default value is auto.
auto – Setting this parameter for the external cost will
automatically set the speed for forwarding packets to the
specified port(s) in the list for optimal efficiency. Default port
cost: 100Mbps port = 200000. Gigabit port = 20000.
<value 1-200000000> - Define a value between 1 and
200000000 to determine the external cost. The lower the
number, the greater the probability the port will be chosen to
forward packets.
hellotime <value 1-10>− The time interval between transmission
of configuration messages by the designated port, to other
devices on the bridged LAN, thus stating that the Switch is still
functioning. The user may choose a time between 1 and 10
seconds. The default is 2 seconds.
migrate [yes | no] – Setting this parameter as “yes” will set the
ports to send out BDPU packets to other bridges, requesting
information on their STP setting If the Switch is configured for
RSTP, the port will be capable to migrate from 802.1d STP to
802.1w RSTP. If the Switch is configured for MSTP, the port is
capable of migrating from 802.1d STP to 802.1s MSTP. RSTP
and MSTP can coexist with standard STP, however the benefits of
RSTP and MSTP are not realized on a port where an 802.1d
network connects to an 802.1w or 802.1s enabled network.
Migration should be set as yes on ports connected to network
stations or segments that are capable of being upgraded to
802.1w RSTP or 802.1s MSTP on all or some portion of the
segment.
edge [true | false] – true designates the port as an edge port.
Edge ports cannot create loops, however an edge port can lose
edge port status if a topology change creates a potential for a
loop. An edge port normally should not receive BPDU packets. If a
BPDU packet is received it automatically loses edge port status.
false indicates that the port does not have edge port status.
shared link. P2P ports are similar to edge ports however they are
restricted in that a P2P port must operate in full-duplex. Like edge
ports, P2P ports transition to a forwarding state rapidly thus
benefiting from RSTP. A p2p value of false indicates that the port
cannot have p2p status. auto allows the port to have p2p status
whenever possible and operate as if the p2p status were true. If
the port cannot maintain this status (for example if the port is
forced to half-duplex operation) the p2p status changes to operate
as if the p2p value were false. The default setting for this
parameter is auto.
state [enable | disable]− Allows STP to be enabled or disabled for
the ports specified in the port list. The default is enable.
Purpose Used to create a STP instance ID for MSTP.
Syntax
Description This command allows the user to create a STP instance ID for the
Parameters <value 1-15> - Enter a value between 1 and 15 to identify the
Restrictions Only administrator-level users can issue this command.
create stp instance_id <value 1-15>
Multiple Spanning Tree Protocol. There are 16 STP instances on
the Switch (one internal CIST, unchangeable) and the user may
create up to 15 instance IDs for the Switch.
configured STP instances on the Switch by creating an
instance_id. A STP instance may have multiple members with the
same MSTP configuration. There is no limit to the number of STP
regions in a network but each region only supports a maximum of
16 spanning tree instances (one unchangeable default entry).
VIDs can belong to only one spanning tree instance at a time.
Note that switches in the same spanning tree region having the
same STP instance_id must be mapped identically, and have the
same configuration revision_level number and the same name.
instance_id. The Switch supports 16 STP regions with one
unchangeable default instance ID set as 0.
add_vlan – Along with the vid_range <vidlist> parameter,
this command will add VIDs to the previously configured STP
instance_id.
remove_vlan – Along with the vid_range <vidlist>
parameter, this command will remove VIDs to the previously
configured STP instance_id.
<vidlist> – Specify the VID range from configured VLANs
set on the Switch. Supported VIDs on the Switch range from
ID number 1 to 4094.
Restrictions Only administrator-level users can issue this command.
settings on the Switch. The MSTP will utilize the priority in
selecting the root bridge, root port and designated port. Assigning
higher priorities to STP regions will instruct the Switch to give
precedence to the selected instance_id for forwarding packets.
The lower the priority value set, the higher the priority.
specify the priority for a specified instance id for forwarding
packets. The lower the value, the higher the priority. This entry
must be divisible by 4096.
instance_id <value 0-15> - Enter the value corresponding to the
previously configured instance id of which the user wishes to set
the priority value. An instance id of 0 denotes the default
instance_id (CIST) internally set on the Switch.
Purpose Used to update the MSTP configuration identification.
Syntax
Description This command will uniquely identify the MSTP configuration
Parameters revision_level <int 0-65535>– Enter a number between 0 and
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the MSTP region of the Switch with revision_level 10 and the name “Trinity”:
DGS-3324SRi:4#config stp mst_config_id revision_level 10 name Trinity
config stp mst_config_id {revision_level <int 0-65535> | name
<string>
currently configured on the Switch. Information entered here will
be attached to BPDU packets as an identifier for the MSTP region
to which it belongs. Switches having the same revision_level and name will be considered as part of the same MSTP region.
65535 to identify the MSTP region. This value, along with the
name will identify the MSTP region configured on the Switch. The
default setting is 0.
name <string> - Enter an alphanumeric string of up to 32
characters to uniquely identify the MSTP region on the Switch.
This name, along with the revision_level value will identify the
MSTP region configured on the Switch. If no name is entered, the
default name will be the MAC address of the device.
Command : config stp mst_config_id revision_level 10 name Trinity
Success.
DGS-3324SRi:4#
config stp mst_ports
Purpose Used to update the port configuration for a MSTP instance.
Syntax
Description This command will update the port configuration for a STP
instance_id. If a loop occurs, the MSTP function will use the port
priority to select an interface to put into the forwarding state. Set a
higher priority value for interfaces to be selected for forwarding
first. In instances where the priority value is identical, the MSTP
function will implement the lowest port number into the forwarding
state and other interfaces will be blocked. Remember that lower
priority values mean higher priorities for forwarding packets.
Parameters <portlist> - Specifies a port or range of ports to be configured. The
port list is specified by listing the lowest switch number and the
beginning port number on that switch, separated by a colon. Then
the highest switch number, and the highest port number of the
range (also separated by a colon) are specified. The beginning
and end of the port list range are separated by a dash. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order.
instance_id <value 0-15> - Enter a numerical value between 0 and
15 to identify the instance_id previously configured on the Switch.
An entry of 0 will denote the CIST (Common and Internal
Spanning Tree.
internalCost – This parameter is set to represent the relative cost
of forwarding packets to specified ports when an interface is
selected within a STP instance. The default setting is auto. There
are two options:
auto – Selecting this parameter for the internalCost will
set quickest route automatically and optimally for an
interface. The default value is derived from the media speed
of the interface.
Restrictions Only administrator-level users can issue this command.
Example usage:
To designate ports 1 through 5 on module one, with instance ID 2, to have an auto internalCost and a priority of 16:
value 1-2000000 – Selecting this parameter with a value
in the range of 1-2000000 will set the quickest route when a
loop occurs. A lower internalCost represents a quicker
transmission.
priority <value 0-240> - Enter a value between 0 and 240 to set
the priority for the port interface. A higher priority will designate the
interface to forward packets first. A lower number denotes a
higher priority.
STP Status : Enabled
STP Version : STP Compatible
Max Age : 20
Hello Time : 2
Forward Delay : 15
Max Age : 20
TX Hold Count : 3
Forwarding BPDU : Enabled
DGS-3324SRi:4#
DGS-3324SRi:4#show stp
Command: show stp
STP Status : Enabled
STP Version : RSTP
Max Age : 20
Hello Time : 2
Forward Delay : 15
Max Age : 20
TX Hold Count : 3
Forwarding BPDU : Enabled
DGS-3324SRi:4#
Status 3 : STP enabled for MSTP
DGS-3324SRi:4#show stp
Command: show stp
STP Status : Enabled
STP Version : MSTP
Max Age : 20
Forward Delay : 15
Max Age : 20
TX Hold Count : 3
Forwarding BPDU : Enabled
Instance Operational Status currently implemented on the Switch.
<portlist>− Specifies a range of ports to be viewed. The port list
is specified by listing the lowest switch number and the beginning
port number on that switch, separated by a colon. Then the
highest switch number, and the highest port number of the range
(also separated by a colon) are specified. The beginning and end
of the port list range are separated by a dash. For example, 1:3
specifies switch number 1, port 3. 2:4 specifies switch number 2,
port 4. 1:3-2:4 specifies all of the ports between switch 1, port 3
and switch 2, port 4 − in numerical order.
show stp instance_id
Purpose Used to display the Switch’s STP instance configuration
Syntax
Description This command displays the Switch’s current STP Instance
Parameters <value 0-15> - Enter a value defining the previously configured
Restrictions None.
Example usage:
To display the STP instance configuration for instance 0 (the internal CIST) on the Switch:
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh
show stp instance_id <value 0-15>
Settings and the STP Instance Operational Status.
instance_id on the Switch. An entry of 0 will display the STP
configuration for the CIST internally set on the Switch.
Each command is listed, in detail, in the following sections.
[enable | disable]
create fdb
Purpose Used to create a static entry to the unicast MAC address
forwarding table (database).
Syntax
Description This command will make an entry into the Switch’s unicast MAC
Parameters
create fdb <vlan_name 32> <macaddr> port <port>
address forwarding database.
<vlan_name 32>− The name of the VLAN on which the MAC
address resides.
<macaddr>− The MAC address that will be added to the
forwarding table.
Restrictions Only administrator-level users can issue this command.
Example usage:
To create a unicast MAC FDB entry:
port <port>− The port number corresponding to the MAC
destination address. The Switch will always forward traffic to the
specified device through this port. The port is specified by listing
the switch number and the port number on that switch, separated
by a colon. For example, 1:3 specifies switch number 1, port 3. 2:4
specifies switch number 2, port 4.
Restrictions Only administrator-level users can issue this command.
Example usage:
To add multicast MAC forwarding:
<vlan_name 32>− The name of the VLAN on which the MAC
address resides.
<macaddr>− The MAC address that will be added to the
multicast forwarding table.
[add | delete] − Add will add ports to the forwarding table. Delete
will remove ports from the multicast forwarding table.
<portlist> − Specifies a range of ports to be configured.
The port list is specified by listing the lowest switch number
and the beginning port number on that switch, separated by
a colon. Then the highest switch number, and the highest
port number of the range (also separated by a colon) are
specified. The beginning and end of the port list range are
separated by a dash. For example, 1:3 specifies switch
number 1, port 3. 2:4 specifies switch number 2, port 4. 1:32:4 specifies all of the ports between switch 1, port 3 and
switch 2, port 4 − in numerical order.
Purpose Used to set the aging time of the forwarding database.
Syntax
Description The aging time affects the learning process of the Switch.
config fdb aging_time <sec 10-1000000>
Dynamic forwarding table entries, which are made up of the
source MAC addresses and their associated port numbers, are
deleted from the table if they are not accessed within the aging
time. The aging time can be from 10 to 1000000 seconds with a
default value of 300 seconds. A very long aging time can result in
dynamic forwarding table entries that are out-of-date or no longer
exist. This may cause incorrect packet forwarding decisions by the
Switch. If the aging time is too short however, many entries may
be aged out too soon. This will result in a high percentage of
received packets whose source addresses cannot be found in the
forwarding table, in which case the Switch will broadcast the
packet to all ports, negating many of the benefits of having a
switch.
Parameters
Restrictions Only administrator-level users can issue this command.
<sec10-1000000>− The aging time for the MAC address
forwarding database value. The value in seconds may be between
10 and 1000000 seconds. The default is 300 seconds.
90
Page 94
Example usage:
To set the fdb aging time:
delete fdb
Purpose Used to delete an entry to the Switch’s forwarding database.
Purpose Used to clear the Switch’s forwarding database of all
dynamically learned MAC addresses.
Example usage:
To clear all FDB dynamic entries:
Syntax
Description This command is used to clear dynamically learned entries to
Parameters
Restrictions Only administrator-level users can issue this command.
DGS-3324SRi:4#clear fdb all
Command: clear fdb all
Success.
DGS-3324SRi:4#
clear fdb [vlan <vlan_name 32> | port <port> | all]
the Switch’s forwarding database.
vlan <vlan_name 32>− The name of the VLAN on which the
MAC address resides.
port <port>− The port number corresponding to the MAC
destination address. The Switch will always forward traffic to the
specified device through this port. The port is specified by listing
the switch number and the port number on that switch,
separated by a colon. For example, 1:3 specifies switch number
1, port 3. 2:4 specifies switch number 2, port 4.
all − Clears all dynamic entries to the Switch’s forwarding
database.
show multicast_fdb
Purpose Used to display the contents of the Switch’s multicast forwarding
Syntax
Description This command is used to display the current contents of the
Parameters
Restrictions None.
Example usage:
To display multicast MAC address table:
database.
show mulitcast_fdb [vlan <vlan_name 32> | mac_address
<macaddr>]
Switch’s multicast MAC address forwarding database.
vlan <vlan_name 32>− The name of the VLAN on which the
MAC address resides.
mac_address <macaddr>− The MAC address that is present in
the forwarding database table.
port <port>− The port number corresponding to the MAC
destination address. The Switch will always forward traffic to the
specified device through this port. The port is specified by listing
the switch number and the port number on that switch, separated
by a colon. For example, 1:3 specifies switch number 1, port 3.
2:4 specifies switch number 2, port 4.
<vlan_name 32> − The name of the VLAN on which the MAC
address resides.
<macaddr>− The MAC address that is present in the forwarding
database table.
static − Displays the static MAC address entries.
aging_time − Displays the aging time for the MAC address
------------ --------------- ------ -----------System 10.0.0.1 1:13 Dynamic
System 10.0.0.2 1:13 Dynamic
System 10.0.0.3 1:13 Dynamic
System 10.0.0.4 1:13 Dynamic
System 10.0.0.7 1:13 Dynamic
System 10.0.0.30 1:13 Dynamic
System 10.0.34.1 1:13 Dynamic
System 10.0.51.1 1:13 Dynamic
System 10.0.58.4 1:13 Dynamic
System 10.0.85.168 1:13 Dynamic
System 10.1.1.1 1:13 Dynamic
System 10.1.1.99 1:13 Dynamic
System 10.1.1.101 1:13 Dynamic
System 10.1.1.102 1:13 Dynamic
System 10.1.1.103 1:13 Dynamic
System 10.1.1.152 1:13 Dynamic
System 10.1.1.157 1:13 Dynamic
System 10.1.1.161 1:13 Dynamic
System 10.1.1.162 1:13 Dynamic
System 10.1.1.163 1:13 Dynamic
CTRL+C ESC q Quit SPACE n Next Page ENTER Next Entry a All
config fdb destination_hit
Purpose To set the Switch for the FDB destination hit function.
Syntax
Description This command will allow the user to enable the Switch as a
Parameters [enable | disable] – Used to enable or disable the Switch to be
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure the Switch to be destination hit enabled:
DGS-3324SRi:4#config fdb destination_hit enable
Command: config fdb destination_hit enable
config fdb destination_hit [enable | disable]
destination hit bridge. This destination hit function will keep FDB
entries learned in the forwarding database table from aging out.
When a packet with a destination MAC address is received by the
Switch, the packet will refresh the MAC address in the forwarding
database table once a match has been made, so that it will not age
out.
<storm_grouplist> − Used to specify a broadcast storm control
group. This is specified by listing the lowest switch number and
the beginning port number on that switch, separated by a colon.
Then the highest switch number, and the highest port number of
the range (also separated by a colon) are specified. The beginning
and end of the port list range are separated by a dash. For
example, 1:3 specifies switch number 1, port 3. 2:4 specifies
switch number 2, port 4. 1:3-2:4 specifies all of the ports between
switch 1, port 3 and switch 2, port 4 − in numerical order.
all − Specifies all broadcast storm control groups on the Switch.
broadcast [enable | disable] − Enables or disables broadcast
storm control.
multicast [enable | disable]− Enables or disables multicast storm
control.
threshold <value 0-255> − The upper threshold at which the
specified traffic control is switched on. The <value> is the number
of broadcast/multicast/dlf packets, in kilopackets per second
(Kpps), received by the Switch that will trigger the storm traffic
control measures.
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure traffic control and enable broadcast storm control system wide:
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