DGS-3224TGR Layer 2 Switch Command Line Interface Reference Manual First Edition (October 2003) 6S24TGRCLI01 Printed In China RECYCLABLE i Trademarks Copyright 2003 D-Link Corporation. Contents subject to change without prior notice. D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. All other trademarks belong to their respective proprietors. Copyright Statement No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as stipulated by the United States Copyright Act of 1976. ii Table of Contents Introduction ............................................................................1 Using the Console CLI .............................................................6 Command Syntax.................................................................. 14 Basic Switch Commands....................................................... 19 Switch Port Commands ......................................................... 44 Network Management Commands ......................................... 49 Download/Upload Commands .............................................. 66 Network Monitoring Commands ............................................ 70 Spanning Tree Commands .................................................... 78 Layer 2 Forwarding Database Commands ............................. 87 Broadcast Storm Control Commands .................................... 97 ARP Commands .................................................................. 101 QOS Commands ................................................................. 106 Port Mirroring Commands................................................... 121 VLAN Commands ................................................................ 128 iii Link Aggregation Commands............................................... 141 IP Interface Commands ....................................................... 149 IGMP Snooping Commands................................................. 154 Routing Table Commands ................................................... 168 802.1X Commands ............................................................. 173 Access Control List (ACL) Commands.................................. 197 SSH Commands .................................................................. 213 Command History List ........................................................ 224 Technical Specifications ...................................................... 230 iv DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 1 INTRODUCTION The switch can be managed through the switch's serial port, Telnet, or the Web-based management agent. The Command Line Interface (CLI) can be used to configure and manage the switch via the serial port or Telnet interfaces. This manual provides a reference for all of the commands contained in the CLI. Configuration and management of the switch via the Web-based management agent is discussed in the User's Guide. Accessing the Switch via the Serial Port The switch's serial port's default settings are as follows: · · · · 9600 baud no parity 8 data bits 1 stop bit A computer running a terminal emulation program capable of emulating a VT-100 terminal and a serial port configured as above is then connected to the switch's serial port via an RS-232 DB-9 cable. 1 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide With the serial port properly connected to a management computer, the following screen should be visible. If this screen does not appear, try pressing Ctrl+r to refresh the console screen. Figure 1-1. Initial Console screen. There is no initial username or password. Just press the Enter key twice to display the CLI input cursor - DGS-3224TGR: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 or TFTP). The switch's default IP address is 10.90.90.90. You can change the default switch IP address to meet the specification of your networking address scheme. 2 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide The switch is also assigned a unique MAC address by the factory that cannot be changed. Figure 1-2. Boot Screen The switch's MAC address can be found from the console program under the Switch Information menu item, as shown below. 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. By default, an IP interface named System is configured on the switch and contains all of the ports on the switch. The System interface can be used initially to assign a range of IP addresses to the switch. Later, when you configure VLANs and IP interfaces on the switch, the ports you assign to these VLANs and IP interfaces will be removed from the System interface. 3 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 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 DGS3224TGR:4# - 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. Alternaltively, you can enter DGS3224TGR:4# - enter the commands 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 Webbased management agent. 4 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Figure 1-3. Assigning the Switch an IP Address In the above example, the switch was assigned an IP address of 10.24.22.9 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. 5 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 2 USING THE CONSOLE CLI The DGS-3224TGR 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 SNMPbased 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. Switch configuration settings are saved to nonvolatile RAM using 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 6 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 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 9,600 baud 8 data bits No parity One stop bit No flow control You can also access the same functions over a Telnet interface. Once you have set an IP address for your switch, you can use a Telnet program (in VT-100 compatible terminal mode) to access and control the switch. All of the screens are identical, whether accessed from the console port or from a Telnet interface. After the switch reboots and you have logged in, the console looks like this: 7 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Figure 2-1. Initial Console Screen Commands are 3224TGR:4#. entered at the command prompt, DGS- There are a number of helpful features included in the CLI. Entering the ? command will display a list of all of the top-level commands. 8 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Figure 2-2. The ? Command The dir command has the same function as the ? command. When you enter a command without its required parameters, the CLI will prompt you with a Next possible completions: message. 9 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Figure 2-3. Example Command Parameter Help In this case, the command config account was entered with the parameter . The CLI will then prompt you to enter the with the message, Next possible completions:. Every command in the CLI has this feature, and complex commands have several layers of parameter prompting. 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. 10 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 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 , the CLI returned the Next possible completions: 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. 11 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Figure 2-5. The Available Commands Prompt The top-level commands consist of commands like show or config. Most of these commands require one or more parameters to narrow the top-level command. This is equivalent to show what? or config what? Where the what? is the next parameter. For example, if you enter the show command with no additional parameters, the CLI will then display all of the possible next parameters. 12 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 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. 13 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 3 COMMAND SYNTAX The following symbols are used in this manual 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. Purpose Example Syntax Description Encloses a variable or value that must be specified. config ipif System ipaddress In the above syntax example, you must supply the network address in the space. Do not type the angle brackets. config ipif System 10.24.22.9/255.0.0.0 ipaddress Example Command 14 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide [square brackets] Purpose Encloses a required value or set of required arguments. One or more values or arguments can be specified. create account [admin|user] In the above syntax example, you must specify either an admin or a user level account to be created. Do not type the square brackets. create account admin Example Syntax Description Example Command | vertical bar Purpose Separates two or more mutually exclusive items in a list - one of which must be entered. show snmp [community|trap receiver|detail] In the above syntax example, you must specify either community, trap receiver, or detail. Do not type the vertical bar. show snmp community Example Syntax Description Example Command 15 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide {braces} Purpose Example Syntax Encloses an optional optional arguments. value or set of config igmp [|all] {version |query_interval |max_response_time | robustness_variable |last_member_query_interval |state [enabled|disabled]} In the above syntax example, you must choose to enter an IP interface name in the space or all, but version , query_interval , max_response_time , robustness_variable , last_member_query_interval , and state [enabled|disabled] are all optional arguments. You can specify any or all of the arguments contained by braces. Do not type the braces. config igmp all version 2 Description Example command Line Editing Key Usage Delete Deletes character under the cursor and then shifts the remaining characters in the line to the left. Delete the character to the left of the cursor and shifts the remaining characters in the 16 Backspace DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Line Editing Key Usage line to the left. Insert Can be toggled on or off. When toggled on, inserts text at the current cursor position and shifts the remainder of the line to the left. Moves the cursor to the left. Moves the cursor to the right. Shifts the cursor to the next field to the left. Left Arrow Right Arrow Tab Multiple Page Display Control Keys Space CTRL+c ESC n p q r a Displays the next page. Stops the display of remaining pages when multiple pages are to be displayed. Stops the display of remaining pages when multiple pages are to be displayed. Displays the next page. Displays the previous page. Stops the display of remaining pages when multiple pages are to be displayed. Refreshes the pages currently displaying. Displays the remaining pausing between pages. pages without 17 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Line Editing Key Usage Enter Displays the next line or table entry. 18 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 4 BASIC SWITCH COMMANDS The basic switch commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command create account config account show account delete account show session show switch show serial_port config serial_port Parameters [admin|user] {baud_rate [9600|19200|38400|115200] auto_logout(2) [never(0)|2_minutes(2)|5_minutes(5) |10_minutes(10)|15_minutes(15)]}(1) enable jumbo_frame disable jumbo_frame 19 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Command show jumbo_frame enable clipaging disable clipaging enable telnet disable telnet enable web disable web save reboot reset login logout config realtime date show realtime Parameters {} {} {config|system} Each command is listed, in detail, in the following sections. create account Purpose Syntax Description Used to create user accounts create [admin|user] 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 eight user accounts can be created. 20 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide create account Parameters Admin User Restrictions Only Administrator-level users can issue this command. Usernames can be between 1 and 15 characters. Passwords can be between 0 and 15 characters. Example Usage: To create an administrator-level user account with the username "dlink": DGS-3224TGR: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-3224TGR:4# config account Purpose Used to configure user accounts 21 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide config account Syntax Description config account The config account command configures a user account that has been created using the create account command. Only Administrator-level users can issue this command. Usernames can be between 1 and 15 characters. Passwords characters. can be between 0 15 Parameters Restrictions Example Usage: To configure the user password of "dlink" account: DGS-3224TGR:4#config account dlink Command: config account dlink Enter a old password:**** Enter a case-sensitive new password:**** Enter the new password again for confirmation:**** Success. DGS-3224TGR:4# show account 22 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide show account Purpose Syntax Description Used to display user accounts show account Displays all user accounts created on the switch. Up to eight user accounts can exist on the switch at one time. None. None. Parameters Restrictions Example Usage: To display the accounts that have been created: DGS-3224TGR:4#show account Command: show account Current Accounts: Username Access Level -------------------------System user dlink Admin DGS-3224TGR:4# delete account Purpose Syntax Used to delete an existing user account delete account 23 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide delete account Description The delete account command deletes a user account that has been created using the create account command. Only Administrator-level users can issue this command. Parameters Restrictions Example Usage: To delete the user account "System": DGS-3224TGR:4#delete account System Command: delete account System Success. DGS-3224TGR:4# show session Purpose Syntax Description Used to display a list of currently logged-in users. show session This command displays a list of all the users that are logged-in at the time the command is issued. None Parameters 24 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide show session Restrictions None. Example Usage: To display the way that the users logged in: DGS-3224TGR:4#show session ID Login Time Live Time --- ------------------- -------------------8 2003/10/01 15:13:40 00:17:27 8 2003/10/01 15:13:40 00:17:29 8 2003/10/01 15:13:40 00:17:31 8 2003/10/01 15:13:40 00:17:35 From Level Name ------------------- ------- ---------------Serial Port 4 Anonymous Serial Port Serial Port Serial Port 4 4 4 Anonymous Anonymous Anonymous show switch Purpose Syntax Description Parameters Restrictions Used to display information about the switch. show switch This command displays information about the switch. None. None. 25 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Example Usage: To display the switch information: DGS-3224TGR:4#show switch Command: show switch Device Type : DGS-3224TGR Gigabit-Ethernet Switch MAC Address : 00-01-02-03-04-00 IP Address : 10.90.90.90 (Manual) VLAN Name : default Subnet Mask : 255.0.0.0 Default Gateway : 0.0.0.0 Boot PROM Version : Build 0.01.004 Firmware Version : Build 0.02.021 Hardware Version : 1A1 System Name : System Location : System Contact : Spanning Tree : Disabled GVRP : Disabled IGMP Snooping : Disabled TELNET : Enabled(TCP 23) SSH : Enabled(TCP 22) WEB : Enabled(TCP 80) RMON : Disabled RPS State : Disabled DGS-3224TGR:4# show serial_port Purpose Used to display the current serial port settings 26 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide show serial_port settings. Syntax Description Parameters Restrictions show serial_port This command displays the current serial port settings. None. None Example Usage: To display the serial port setting: DGS-3224TGR:4#show serial_port Command: show serial_port Baud Rate Data Bits Parity Bits Stop Bits Auto-Logout : 9600 :8 : None :1 : 10 mins DGS-3224TGR:4# config serial_port Purpose Syntax Used to configure the serial port. config serial_port {baud_rate[9600|19200|38400|115200]|au to_logout 27 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide config serial_port [never|2_minutes|5_minutes|10_minutes| 15_minutes]} Description Parameters This command is used to configure the serial port's baud rate and auto logout settings. [9600|19200|38400|115200] - The serial bit rate that will be used to communicate with the management host. never - No time limit on the length of time the console can be open with no user input. 2_minutes - The console will log out the current user if there is no user input for 2 minutes. 5_minutes - The console will log out the current user if there is no user input for 5 minutes. 10_minutes - The console will log out the current user if there is no user input for 10 minutes. 15_minutes - The console will log out the current user if there is no user input for 15 minutes. Restrictions Only administrator-level users can issue this command. Example Usage: To configure baud rate: 28 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide DGS-3224TGR:4#config serial_port baud_rate 9600 Command: config serial_port baud_rate 9600 Success. DGS-3224TGR:4# enable jumbo_frame Purpose Syntax Description Parameters Restrictions Used to enable support for Jumbo Frames. enable jumbo_frame This command is used to enable support for Jumbo Frames up to 9216 bytes. None. Only administrator-level users can issue this command. Example Usage: To enable jumbo frame support on the switch: DGS-3224TGR:4#enable jumbo_frame Command: enable jumbo_frame Success. DGS-3224TGR:4# 29 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide disable jumbo_frame Purpose Syntax Description Parameters Restrictions Used to disable support for Jumbo Frames. disable jumbo_frame This command is used to disable support for Jumbo Frames of up to 9216 bytes. None. Only administrator-level users can issue this command. Example Usage: To disable jumbo frame support on the switch: DGS-3224TGR:4#disable jumbo_frame Command: disable jumbo_frame Success. DGS-3224TGR:4# show jumbo_frame Purpose Syntax Description Used to display whether support for Jumbo Frames is currently enabled. show jumbo_frame This command is used to display whether support for Jumbo Frames of up to 9216 30 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide show jumbo_frame bytes is enabled. Parameters Restrictions None. Only administrator-level users can issue this command. Example Usage: To display jumbo frame support on the switch: DGS-3224TGR:4#show jumbo_frame Command: show jumbo_frame On. DGS-3224TGR:4# enable clipaging Purpose Used to pause the scrolling of the console screen when the show command displays more than one page. enable clipaging This command is used when issuing the show command will cause 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 enabled. Syntax Description 31 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide enable clipaging Parameters Restrictions None. Only administrator-level users can issue this command. Example Usage: To enable pausing of the screen display when show command output reaches the end of the page: DGS-3224TGR:4#enable clipaging Command: enable clipaging Success. DGS-3224TGR:4# disable clipaging Purpose Used to disable the pausing of the console screen scrolling at the end of each page when the show command would display more than one screen of information. disable clipaging This command is used to disable the pausing of the console screen at the end of each page when the show command would display more than one screen of information. Syntax Description 32 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide disable clipaging Parameters Restrictions None. Only administrator-level users can issue this command. Example Usage: To disable pausing of the screen display when show command output reaches the end of the page: DGS-3224TGR:4#disable clipaging Command: disable clipaging Success. DGS-3224TGR:4# enable telnet Purpose Used to enable communication with and management of the switch using the Telnet protocol. enable telnet This command is used to enable the Telnet protocol on the switch. The user can specify the TCP or UDP port number the switch will use to listen for Telnet requests. - the TCP port number. TCP ports are numbered between 33 Syntax Description Parameters DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide enable telnet 1 and 65535. The "well-known" TCP port for the Telnet protocol is 23. Restrictions Only administrator-level users can issue this command. Example Usage: To enable Telnet and configure port number: DGS-3224TGR:4#enable telnet 23 Command: enable telnet 23 Success. DGS-3224TGR:4# disable telnet Purpose Syntax Description Parameters Restrictions Used to disable the Telnet protocol on the switch. disable telnet This command is used to disable the Telnet protocol on the switch. None. Only administrator-level users can issue this command. 34 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide Example Usage: To disable the Telnet protocol on the switch: DGS-3224TGR:4#disable telnet Command: disable telnet Success. DGS-3224TGR:4# enable web Purpose Syntax Description Used to enable the HTTP-based management software on the switch. enable web This command is used to enable the Webbased management software on the switch. The user can specify the TCP port number the switch will use to listen for Telnet requests. - The TCP port number. TCP ports are numbered between 1 and 65,535. The "well-known" port for the Web-based management software is 80. Only administrator-level users can issue this command. Parameters Restrictions Example Usage: 35 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide To enable HTTP and configure port number: DGS-3224TGR:4#enable web 80 Command: enable web 80 Success. DGS-3224TGR:4# disable web Purpose Syntax Description Parameters Restrictions Used to disable the HTTP-based management software on the switch. disable web This command disables the Web-based management software on the switch. None. Only administrator-level users can issue this command. Example Usage: To disable HTTP: DGS-3224TGR:4#disable web Command: disable web Success. 36 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide DGS-3224TGR:4# save Purpose Syntax Description Used to save changes in the switch's configuration to non-volatile RAM. save This command is used to enter the current switch configuration into non-volatile RAM. The saved switch configuration will be loaded into the switch's memory each time the switch is restarted. None. Only administrator-level users can issue this command. Parameters Restrictions Example Usage: To save the switch's current configuration to non-volatile RAM: DGS-3224TGR:4#save Command: save Saving all settings to NV-RAM... 100% done. DGS-3224TGR:4# 37 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide reboot Purpose Syntax Description Parameters Restrictions Used to restart the switch. reboot This command is used to restart the switch. None. None. Example Usage: To restart the switch: DGS-3224TGR:4#reboot Command: reboot Are you sure want to proceed with the system reboot? (y|n) Please wait, the switch is rebooting... reset Purpose Syntax Description Used to reset the switch to the factory default settings. reset {config|system} This command is used to restore the switch's configuration to the default 38 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide reset settings assigned from the factory. Parameters config - If config is specified, all of the factory default settings are restored on the switch except for the IP address, user accounts, and the switch history log. system - If system is specified all of the factory default settings are restored on the switch. If no parameter is specified, the switch's current IP address, user accounts, and switch history log are retained. All other parameters are restored to their factory default settings. Restrictions Only administrator-level users can issue this command. Example Usage: To restore all of the switch's parameters to their default values: DGS-3224TGR:4#reset config Command: reset config Success. DGS-3224TGR:4# 39 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide login Purpose Syntax Description Used to log in a user to the switch's console. login This command is used to initiate the login procedure. The user will be prompted for his Username and Password. None. None. Parameters Restrictions Example Usage: To initiate the login procedure: DGS-3224TGR:4#login Command: login UserName: logout Purpose Syntax Description Used to log out a user from the switch's console. logout This command terminates the current user's session on the switch's console. 40 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide logout Parameters Restrictions None. None. Example Usage: To terminate the current user's console session: DGS-3224TGR:4#logout config realtime date Purpose Syntax Description Parameters Used to configure the date and time on the switch. config realtime date This command is used to set the date and time on the switch. - Use this format for setting the date. - Use this format for setting the time. Restrictions Only administrator-level users can issue this command. Example Usage: 41 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide To configure the date: DGS-3224TGR:4#config realtime date 23sep2003 10:59:30 Command: config realtime date 23sep2003 10:59:30 Success. DGS-3224TGR:4# show realtime Purpose Syntax Description Parameters Restrictions Used to display the date and time on the switch. show realtime This command is used to display the date and time on the switch. None. Only administrator-level users can issue this command. Example Usage: To display the date: DGS-3224TGR:4#show realtime Command: show realtime The current time : 2003/09/23 11:00:59 42 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide DGS-3224TGR:4# 43 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide 5 SWITCH PORT COMMANDS The switch port commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command config ports Parameters speed [auto|10_half|10_full|100_half|100_full| |1000_full] flow_control [enabled|disabled] learning [enabled|disabled] state [enabled|disabled] show ports Each command is listed, in detail, in the following sections. 44 DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide config ports Purpose Syntax Used to configure the switch's Ethernet port settings. config ports [] {speed [auto|10_half|10_full|100_half|100_full| 1000_full] flow_control [enable|disable] learning [enable|disable] state [enable|disable]} Description This command allows for the configuration of the switch's Ethernet ports. Only the ports listed in the will be effected. all - Displays all ports on the switch. portlist - Specifies a range of ports to be configured. The port list is specified by listing the beginning port number and the highest port number of the range. The beginning and end of the port list range are separated by a dash. For example, 3 would specify port 3. 4 specifies port 4. 3-4 specifies all of the ports between port 3 and 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. Gigabit ports are statically set to 1000 and cannot be set to 45 Parameters DGS-3224TGR Layer 2 Gigabit Ethernet Switch User's Guide config ports slower speeds. [half|full] - Configures the specified range of ports as either full- or half-duplex. flow_control [enable|disable] - Enables or disables flow control for the specified range of 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. Restrictions Only administrator-level users can issue this command. Example Usage: To configure the speed of the ports 1 to 3 to be 10 Mbps, full duplex, learning, and state enabled: DGS-3224TGR:4#config ports 1-3 speed 10_full learning enable state enable Command: config ports 1-3 speed 10_full learning enable state enable Success. 46