D-Link DES-3326S - Switch - Stackable Command Line Interface Reference Manual

Trademarks Copyright 2005 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. FCC Warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this Manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. CE Mark Warning This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures. VCCI Warning

Introduction............................................................................................................................................................. 1 Using the Console CLI............................................................................................................................................ 4 Command Syntax.................................................................................................................................................... 8 Basic Switch Commands ...................................................................................................................................... 12 Switch Port Commands......................................................................................................................................... 32 Port Security Commands ...................................................................................................................................... 35 Network Management Commands........................................................................................................................ 40 MAC Notification Commands.............................................................................................................................. 66 Download/Upload Commands.............................................................................................................................. 71 Network Monitoring Commands .......................................................................................................................... 74 Spanning Tree Commands.................................................................................................................................... 93 Forwarding Database Commands ....................................................................................................................... 101 Broadcast Storm Control Commands.................................................................................................................. 110 QOS Commands ................................................................................................................................................. 113 Port Mirroring Commands.................................................................................................................................. 125 VLAN Commands .............................................................................................................................................. 131 Link Aggregation Commands............................................................................................................................. 140 Basic IP Commands............................................................................................................................................ 148 IGMP Snooping Commands............................................................................................................................... 151 802.1X Commands ............................................................................................................................................. 160 Access Control List and CPU Interface Filtering Commands ............................................................................ 176 Traffic Segmentation Commands ....................................................................................................................... 198 Stacking Commands ........................................................................................................................................... 201 Time and SNTP Commands ............................................................................................................................... 205 ARP Commands.................................................................................................................................................. 214 Routing Table Commands .................................................................................................................................. 220 Route Redistribution Commands........................................................................................................................ 224 IGMP Commands ............................................................................................................................................... 231 Bootp Relay Commands ..................................................................................................................................... 235 DNS Relay Commands....................................................................................................................................... 242 RIP Commands ................................................................................................................................................... 250 DVMRP Commands ........................................................................................................................................... 255 PIM Commands .................................................................................................................................................. 262 IP Multicasting Commands................................................................................................................................. 268 MD5 Configuration Commands.......................................................................................................................... 271 OSPF Configuration Commands ........................................................................................................................ 276 Command History List........................................................................................................................................ 305 Technical Specifications ..................................................................................................................................... 310

1 INTRODUCTION The Switch can be managed through the Switch’s serial port, Telnet, or the Web-based management agent. The Command Line Interface (CLI) can be used to configure and manage the Switch via the serial port or Telnet interfaces. This manual provides a reference for all of the commands contained in the CLI. Configuration and management of the Switch via the Web-based management agent is discussed in the User’s Guide. Accessing the Switch via the Serial Port The Switch’s serial port’s default settings are as follows: • 9600 baud • no parity • 8 data bits • 1 stop bit A computer running a terminal emulation program capable of emulating a VT-100 terminal and a serial port configured as above is then connected to the Switch’s serial port via an RS-232 DB-9 cable. With the serial port properly connected to a management computer, the following screen should be visible. If this screen does not appear, try pressing Ctrl+r to refresh the console screen. Figure 1-1. Initial Console screen There is no initial username or password. Just press the Enter key twice to display the CLI input cursor − DES- 3326S:4#. This is the command line where all commands are input. 1

Setting the Switch’s IP Address Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). The Switch’s default IP address is 10.90.90.90. You can change the default Switch IP address to meet the specification of your networking address scheme. The Switch is also assigned a unique MAC address by the factory. This MAC address cannot be changed, and can be found from the initial boot console screen – shown below. Figure 1-2. Boot Screen The Switch’s MAC address can also be found from 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: Starting at the command line prompt, enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx|yyy.yyy.yyy.yyy. Where the x’s represent the IP address to be assigned to the IP interface named System and the y’s represent the corresponding subnet mask. Alternatively, you can enter config ipif System ipaddress xxx.xxx.xxx.xxx|z. Where the x’s represent the IP address to be assigned to the IP interface named System and the 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. 2

Figure 1-3. Assigning the Switch an IP Address In the above example, the Switch was assigned an IP address of 10.41.44.33 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. Note: Some nonalphanumeric characters may cause the Switch to reboot if entered using the CLI interface. Be careful to use only alphanumeric characters when entering commands. 3

2 USING THE CONSOLE CLI The DES-3326S 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 • 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. 4

After the Switch reboots and you have logged in, the console looks like this: Figure 2-1. Initial Console Screen Commands are entered at the command prompt, DES-3326S:4#. There are a number of helpful features included in the CLI. Entering the ? command will display a list of all of the top-level commands. Figure 2-2. The ? Command 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. 5

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. In addition, after typing any given command plus one space, you can see all of the next possible sub-commands, in sequential order, by repeatedly pressing the Tab key. To re-enter the previous command at the command prompt, press the up arrow cursor key. The previous command will appear at the command prompt. 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. 6

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 Next 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. 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. 7

3 COMMAND SYNTAX The following symbols are used to describe how command entries are made and values and arguments are specified in this manual. The online help contained in the CLI and available through the console interface uses the same syntax. Note: All commands are case-sensitive. Be sure to disable Caps Lock or any other unwanted function that changes text case. 8

| vertical bar Purpose Separates two or more mutually exclusive items in a list, one of which must be entered. Syntax show snmp [community|detail] Description In the above syntax example, you must specify either community, or detail. Do not type the backslash. Example Command show snmp community {braces} Purpose Encloses an optional value or set of optional arguments. Syntax reset {[config|system]} Description In the above syntax example, you have the option to specify config or detail. It is not necessary to specify either optional value, however the effect of the system reset is dependent on which, if any, value is specified. Therefore, with this example there are three possible outcomes of performing a system reset. See the following chapter, Basic Commands for more details about the reset command. Example command reset config 10

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. 11

4 BASIC SWITCH COMMANDS The basic Switch commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command Parameters create account [admin|user] config account show account show session show switch show serial_port config serial_port baud_rate [9600|19200|38400|115200] auto_logout [never|2_minutes|5_minutes |10_minutes|15_minutes] enable clipaging disable clipaging enable telnet disable telnet enable web disable web save reboot reset {config|system} login logout Each command is listed, in detail, in the following sections. 12

create account Purpose Used to create user accounts Syntax create [admin|user] Description The create account command is used to create user accounts that consist of a username of 1 to 15 characters and a password of 0 to 15 characters. Up to 8 user accounts can be created. Parameters Admin 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”. DES-3326S:4#create account admin dlink Command: create account admin dlink Enter a case-sensitive new password:**** Enter the new password again for confirmation:**** Success. DES-3326S:4# 13

config account Purpose Used to configure user accounts Syntax config account Description The config account command configures a user account that has been created using the create account command. Parameters Restrictions Only Administrator-level users can issue this command. Usernames can be between 1 and 15 characters. Passwords can be between 0 15 characters. Example Usage: To configure the user password of “dlink” account: DES-3326S: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. DES-3326S:4# 14

show account Purpose Used to display user accounts Syntax show account Description Displays all user accounts created on the Switch. Up to 8 user accounts can exist on the Switch at one time. Parameters none. Restrictions none. Example Usage: To display the accounts that have been created: DES-3326S:4#show account Command: show account Current Accounts: Username Access Level --------------- ------------ dlink Admin DES-3326S:4# 15

delete account Purpose Used to delete an existing user account Syntax delete account Description The delete account command deletes a user account that has been created using the create account command. Parameters Restrictions Only Administrator-level users can issue this command. Example Usage: To delete the user account “System”: DES-3326S:4#delete account System Command: delete account System Success. DES-3326S:4# 16

show session Purpose Used to display a list of currently logged-in users. Syntax show session Description This command displays a list of all the users that are logged-in at the time the command is issued. Parameters None Restrictions None. Example Usage: To display the way that the users logged in: DES-3326S:4#show session Command: show session ID Login Time Live Time From Level Name -- ------------------- ------------ --------------- ----- --------------- *8 00000 days 03:27:34 0:0:32.670 Serial Port 4 Anonymous 17

show serial_port Purpose Used to display the current serial port settings. Syntax show serial_port Description This command displays the current serial port settings. Parameters none. Restrictions none Example Usage: To display the serial port setting: DES-3326S:4#show serial_port Command: show serial_port Baud Rate : 9600 Data Bits : 8 Parity Bits : None Stop Bits : 1 Auto-Logout : 10 mins DES-3326S:4# 18

show switch Purpose Used to display information about the Switch. Syntax show switch Description This command displays information about the Switch. Parameters None. Restrictions None. Example Usage: To display the Switch information: DES-3326S:4#show switch Command: show switch Device Type : DES-3326S Fast-Ethernet Switch Module Type : DES-332GS 1-port GBIC Gigabit Ethernet and 1 Stacking Port Unit ID : 1 MAC Address : 00-05-5D-17-FF-60 IP Address : 10.90.90.90 (Manual) VLAN Name : default Subnet Mask : 255.0.0.0 Default Gateway : 10.1.1.254 Boot PROM Version : Build 0.00.001 Firmware Version : Build 4.01-B12 Hardware Version : 2B1 Device S/N : System Name : System Location : System Contact : Spanning Tree : Disabled GVRP : Disabled IGMP Snooping : Disabled TELNET : Enabled (TCP 23) WEB : Enabled (TCP 80) RMON : Disabled RIP : Disabled CTRL+C ESC q Quit SPACE n Next Page ENTER Next Entry a All 19

show serial_port Purpose Used to display the current serial port settings. Syntax show serial_port Description This command displays the current serial port settings. Parameters none. Restrictions none Example Usage: To display the serial port setting: DES-3326S:4#show serial_port Command: show serial_port Baud Rate : 9600 Data Bits : 8 Parity Bits : None Stop Bits : 1 Auto-Logout : 10 mins DES-3326S:4# 20

config serial_port Purpose Used to configure the serial port. Syntax config serial_port {baud_rate[9600|19200|38400|115200]|auto_logout [never|2_minutes|5_minutes|10_minutes| 15_minutes]} Description This command is used to configure the serial port’s baud rate and auto logout settings. Parameters [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: DES-3326S:4#config serial_port baud_rate 9600 Command: config serial_port baud_rate 9600 Success. DES-3326S:4# 21

enable clipaging Purpose Used to pause the scrolling of the console screen when the show command displays more than one page. Syntax enable clipaging Description 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. Parameters none. Restrictions 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: DES-3326S:4#enable clipaging Command: enable clipaging Success. DES-3326S:4# 22

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. Syntax disable clipaging Description 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. Parameters none. Restrictions 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: DES-3326S:4#disable clipaging Command: disable clipaging Success. DES-3326S:4# 23

enable telnet Purpose Used to enable communication with and management of the Switch using the Telnet protocol. Syntax enable telnet Description 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. Parameters − The TCP port number. TCP ports are numbered between 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: DES-3326S:4#enable telnet 23 Command: enable telnet 23 Success. DES-3326S:4# 24

disable telnet Purpose Used to disable the Telnet protocol on the Switch. Syntax disable telnet Description This command is used to disable the Telnet protocol on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To disable the Telnet protocol on the Switch: DES-3326S:4#disable telnet Command: disable telnet Success. DES-3326S:4# 25

enable web Purpose Used to enable the HTTP-based management software on the Switch. Syntax enable web Description This command is used to enable the Web- based management software on the Switch. The user can specify the TCP port number the Switch will use to listen for Telnet requests. Parameters − The TCP port number. TCP ports are numbered between 1 and 65535. The “well-known” port for the Web-based management software is 80. Restrictions Only administrator-level users can issue this command. Example Usage: To enable HTTP and configure port number: DES-3326S:4#enable web 80 Command: enable web 80 Success. DES-3326S:4# 26

disable web Purpose Used to disable the HTTP-based management software on the Switch. Syntax disable web Description This command disables the Web-based management software on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To disable HTTP: DES-3326S:4#disable web Command: disable web Success. DES-3326S:4# 27

save Purpose Used to save changes in the Switch’s configuration to non-volatile RAM. Syntax save Description 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. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To save the Switch’s current configuration to non-volatile RAM: DES-3326S:4#save Command: save Saving all settings to NV-RAM... 100% done. DES-3326S:4# 28

reboot Purpose Used to restart the Switch. Syntax reboot Description This command is used to restart the Switch. Parameters none. Restrictions none. Example Usage: To restart the Switch: DES-3326S:4#reboot Command: reboot Are you sure you want to proceed with the system reboot? (y/n) Please wait, the Switch is rebooting... 29

reset Purpose Used to reset the Switch to the factory default settings. Syntax reset {config|system} Description This command is used to restore the Switch’s configuration to the default settings assigned from the factory. Parameters config − If 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 reboot. New user accounts information and IP settings will need to be assigned. system − If system is specified all of the factory default settings are restored on the Switch. The Switch will reboot. New user accounts information and IP settings will need to be assigned. If no parameter is specified, the Switch’s current IP address, user accounts, and the Switch history log are retained. All other parameters are restored to their factory default settings. The Switch will not reboot. Restrictions Only administrator-level users can issue this command. Example Usage: To restore all of the Switch’s parameters to their default values: DES-3326S:4#reset config Command: reset config Success. DES-3326S:4# 30

login Purpose Used to log in a user to the Switch’s console. Syntax login Description This command is used to initiate the login procedure. The user will be prompted for his Username and Password. Parameters none. Restrictions none. Example Usage: To initiate the login procedure: DES-3326S:4#login Command: login UserName: logout Purpose Used to log out a user from the Switch’s console. Syntax logout Description This command terminates the current user’s session on the Switch’s console. Parameters none. Restrictions none. Example Usage: To terminate the current user’s console session: DES-3326S:4#logout 31

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 Parameters config ports [] {speed[auto|10_half|10_full|100_half|100_half|1000_full ] learning [enable|disable] state [enable|disable]} show ports Each command is listed, in detail, in the following sections. 32

config ports Purpose Used to configure the Switch’s Ethernet port settings. Syntax config ports [] {speed[auto|10_half|10_full|100_half|100_half|1000_f ull] 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 affected. Parameters all − Displays all ports on the Switch. − 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. [half/full] − Configures the specified range of ports as either full- or half-duplex. flow_control [enable|disable] - Enables or disables the flow control on 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 port 3 to be 10 Mbps, full duplex, learning and state enabled: DES-3326S:4#config ports 1-3 speed 10_full learning on state enable Command: config ports 1-3 speed 10_full learning on state enable Success. DES-3326S:4# 33

show ports Purpose Used to display the current configuration of a range of ports. Syntax show ports {} Description This command is used to display the current configuration of a range of ports. Parameters − 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. Restrictions none. Example Usage: To display ports status: DES-3326S:4#show ports Command: show ports Port Port Settings Connection Address State Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl Learning ------ -------- --------------------- --------------------- -------- 1 Enabled Auto/Disabled Link Down Enabled 2 Enabled Auto/Disabled Link Down Enabled 3 Enabled Auto/Disabled Link Down Enabled 4 Enabled Auto/Disabled Link Down Enabled 5 Enabled Auto/Disabled Link Down Enabled 6 Enabled Auto/Disabled Link Down Enabled 7 Enabled Auto/Disabled Link Down Enabled 8 Enabled Auto/Disabled Link Down Enabled 9 Enabled Auto/Disabled Link Down Enabled 10 Enabled Auto/Disabled 100M/Full/None Enabled 11 Enabled Auto/Disabled Link Down Enabled 12 Enabled Auto/Disabled Link Down Enabled 13 Enabled Auto/Disabled Link Down Enabled 14 Enabled Auto/Disabled Link Down Enabled 15 Enabled Auto/Disabled Link Down Enabled 16 Enabled Auto/Disabled Link Down Enabled 17 Enabled Auto/Disabled 100M/Full/None Enabled 18 Enabled Auto/Disabled Link Down Enabled 19 Enabled Auto/Disabled Link Down Enabled 20 Enabled Auto/Disabled Link Down Enabled CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh 34

6 PORT SECURITY COMMANDS The Switch port security commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command Parameters config port_security |all admin_state [enable|disable] max_learning_addr <0-10> lock_address_mode [Permanent|DeleteOnTimout|DeleteOnReset ] delete port_security_entry vlan_name mac_address port clear port_security_entry port show port_security Each command is listed, in detail, in the following sections. 35

config port_security Purpose Used to configure port lock settings. Syntax config port_security |all admin_state [enable|disable] max_learning_addr lock_address_mode [Permanent|DeleteOnTimout|DeleteOnReset] Description This command allows for the configuration of the port lock security feature. Only the ports listed in the are effected. Parameters all − configure port lock for 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 highest Switch number, and the highest port number of the range (also separeted by a colon) are specified. The beginning and end of the port list range are seperated by a dash. For example, 1:3 would specify 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. admin_state [enable|disaled] – enable or disable port lock for the listed ports. max_learning_addr <1-10> - use this to limit the number of MAC addresses dynamically listed in the FDB for the ports. lock_address_mode[Permanent|DeleteOnTimout|DeleteOnReset] – The options for clearing the aging out locked addresses for the port are as follows: Permanent – Locked MAC addresses do not age out. MAC addresses retain locked status even if the Switch is restarted. DeleteOnTimeout – Removes locked MAC addresses upon aging out of the FDB. MAC address aging is set using FDB commands. (See config fdb aging_time in Forwarding Database Commands). DeleteOnReset – Locked MAC addresses do not age out. If the Switch is restarted reset, the MAC addresses will no longer have locked status. Any previously learned addresses will need to be relearned. Restrictions Only administrator-level users can issue this command. 36

Example Usage: To configure the port lock for ports 1:12 – 1:14 to delete the dynamic address table entries on timeout: DES-3326S:4#config port_security ports 12-14 lock_address_mode DeleteOnTimeout Command: config port_security ports 12-14 lock_address_mode DeleteOnTimeout Success. DES-3326S:4# delete port_security_entry Purpose Used to remove port security from specific devices according to VLAN and port. Syntax delete port_security_entry vlan_name mac_address port Description This allows specific MAC addresses to be excluded from port locked status for individual ports. Parameters − The name of the VLAN on which the port resides. − The MAC address that will be removed from eligibility for locked status. − The port number corresponding to the MAC address of the device being removed. Restrictions Only administrator-level users can issue this command. Example Usage: To remove a port eligibility for a specific device: DES-3326S:4#delete port_security_entry vlan_name default mac_address a1-01-01-01-01-01 port 4 Command: delete port_security_entry vlan_name default mac_address A1-01-01-01-01-01 port 1:4 Success DES-3326S:4# 37

config port_security_entry Purpose Used to clear the MAC entries learned from the specified port(s) for the port security function Syntax clear port_security_entry port Description This will delete all entries from the forwarding data base for a specific port or range of ports. Parameters 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 highest Switch number, and the highest port number of the range (also separeted by a colon) are specified. The beginning and end of the port list range are seperated by a dash. For example, 1:3 would specify 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 Only administrator-level users can issue this command. Example Usage: To clear the port security entries for a specific port (port 10): DES-3326S:4#clear port_security_entry port 10 Command: clear port_security_entry port 10 Success. DES-3326S:4# 38

show port_security Purpose Used to display the current portr lock configuration. Syntax show port_security {} Description This command is used to display the current port lock configuration of a range of ports. Parameters − 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 highest Switch number, and the highest port number of the range (also separeted by a colon) are specified. The beginning and end of the port list range are seperated by a dash. For example, 1:3 would specify 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 port security configuration on the entire Switch: DES-3326S:4#show port_security Command: show port_security Port# Admin State Max. Learning Addr. Lock Address Mode ---- ----------- ------------------- ----------------- 1 Disabled 1 DeleteOnReset 2 Disabled 1 DeleteOnReset 3 Disabled 1 DeleteOnReset 4 Disabled 1 DeleteOnReset 5 Disabled 1 DeleteOnReset 6 Disabled 1 DeleteOnReset 7 Enabled 10 DeleteOnReset 8 Disabled 1 DeleteOnReset 9 Disabled 1 DeleteOnReset 10 Disabled 1 DeleteOnReset 11 Disabled 1 DeleteOnReset 12 Disabled 1 DeleteOnReset 13 Disabled 1 DeleteOnReset 14 Disabled 1 DeleteOnReset 15 Disabled 1 DeleteOnReset 16 Disabled 1 DeleteOnReset 17 Disabled 1 DeleteOnReset 18 Disabled 1 DeleteOnReset 19 Disabled 1 DeleteOnReset 20 Disabled 1 DeleteOnReset CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh 39

7 NETWORK MANAGEMENT COMMANDS The network management commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. The DES-3326S supports the Simple Network Management Protocol (SNMP) versions 1, 2c, and 3. You can specifiy which version of the SNMP you want 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 Community String is used for authentication − NoAuthNoPriv v2c Community String Community String is used for authentication − NoAuthNoPriv v3 Username Username is used for authentication − NoAuthNoPriv v3 MD5 or SHA Authentication is based on the HMAC-MD5 or HMAC-SHA algorithms − AuthNoPriv v3 MD5 DES or SHA DES 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 40

Command Parameters create snmp user v1|v2c|v3 encrypted auth [md5|sha] priv [none|des show snmp user show snmp groups create snmp view view_type [included|excluded] delete snmp view [all|oid] show snmp view create snmp community view [read_only|read_write] delete snmp community show snmp community config snmp engineID show snmp engineID 41

Command Parameters create snmp group v1|v2c|v3 noauth_nopriv auth_nopriv auth_priv read_view write_view notify_view delete snmp group create snmp host v1|v2c|v3 noauth_nopriv auth_nopriv auth_priv delete snmp host show snmp host enable rmon disable rmon ping times timeout traceroute port timeout probe ttl Each command is listed, in detail, in the following sections. 42

create snmp user Purpose Used to create a new SNMP user and adds the user to an SNMP group that is also created by this command. Syntax create snmp user [v1|v2c|v3 {encrypted auth [md5|sha] priv [none|des ]}] Description The create snmp user command creates a new SNMP user and adds the user to an SNMP group that is also created by this command. Parameters − An alphanumeric name of up to 32 characters that will identify the new SNMP user. − 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 in transit. Authentication − determines that an SNMP message is from a valid source. Encryption − scrambles the contents of messages to prevent it being seen by an unauthorized source. encrypted – Specifies that the password will be in an encrypted format. auth [md5|sha] – Initiate an authentication-level setting session. md5 − Specifies that the HMAC-MD5-96 authentication level will be used. sha − Specifies that the HMAC-SHA-96 authentication level will be used. − An alphanumeric sting of between 8 and 16 characters that will be used to authorize the agent to receive packets for the host. des − 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. Restrictions Only administrator-level users can issue this command. 43

Example Usage: To create an SNMP user on the Switch: DES-3326S:4#create snmp user dlink default v3 encrypted auth md5 auth_password priv none Command: create snmp user dlink default v3 encrypted auth md5 auth_password priv none Success. DES-3326S:4# delete snmp user Purpose Used to remove an SNMP user from an SNMP group and also to delete the associated SNMP group. Syntax delete snmp user Description The delete snmp user command removes an SNMP user from its SNMP group and then deletes the associated SNMP group. Parameters − An alphanumeric string of up to 32 characters that identifies the SNMP user that will be deleted. Restrictions Only administrator-level users can issue this command. 44

Example Usage: To delete a previously entered SNMP user on the Switch: DES-3326S:4#delete snmp user dlink Command: delete snmp user dlink Success. DES-3326S:4# show snmp user Purpose Used to display information about each SNMP username in the SNMP group username table. Syntax show snmp user Description The show snmp user command displays information about each SNMP username in the SNMP group username table. Parameters None. Restrictions Only administrator-level users can issue this command. Example Usage: To display the SNMP users currently configured on the Switch: DES-3326S:4#show snmp user Command: show snmp user Username Group Name SNMP Version Auth-Protocol PrivProtocol --------------- --------------- ------------ ------------- ------------ initial initial V3 None None Total Entries: 1 DES-3326S:4# 45

show snmp groups Purpose Used to display the group-names of SNMP groups currently configured on the Switch. The security model, level, and status of each group is also displayed. Syntax show snmp groups Description 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 is also displayed. Parameters None. Restrictions Only administrator-level users can issue this command. Example Usage: To display the currently configured SNMP groups on the Switch: DES-3326S: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 Securiy Model : SNMPv3 Securiy Level : NoAuthNoPriv Group Name : Group4 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Securiy Model : SNMPv3 Securiy Level : authNoPriv Group Name : Group5 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Securiy Model : SNMPv3 Securiy Level : authNoPriv 46

Group Name : Group6 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Securiy Model : SNMPv3 Securiy Level : authPriv Group Name : Group7 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Securiy Model : SNMPv3 Securiy Level : authPriv Group Name : initial ReadView Name : restricted WriteView Name : Notify View Name : restricted Securiy Model : SNMPv3 Securiy Level : NoAuthNoPriv Group Name : ReadGroup ReadView Name : CommunityView WriteView Name : Notify View Name : CommunityView Securiy Model : SNMPv1 Securiy Level : NoAuthNoPriv 47

Group Name : ReadGroup ReadView Name : CommunityView WriteView Name : Notify View Name : CommunityView Securiy Model : SNMPv2 Securiy Level : NoAuthNoPriv Group Name : WriteGroup ReadView Name : CommunityView WriteView Name : CommunityView Notify View Name : CommunityView Securiy Model : SNMPv1 Securiy Level : NoAuthNoPriv Group Name : WriteGroup ReadView Name : CommunityView WriteView Name : CommunityView Notify View Name : CommunityView Securiy Model : SNMPv2 Securiy Level : NoAuthNoPriv Total Entries: 10 DES-3326S:4# 48

create snmp view Purpose Used to assign views to community strings to limit which MIB objects and SNMP manager can access. Syntax create snmp view view_type [included|excluded] Description The create snmp view assigns views to community strings to limit which MIB objects an SNMP manager can access. Parameters − An alphanumeric string of up to 32 characters that identifies the SNMP view that will be created. − The object ID that identifies an object tree (MIB tree) that will be included or excluded from access by an SNMP manager. included − Include this object in the list of objects that an SNMP manager can access. excluded − Exclude this object from the list of objects that an SNMP manager can access. Restrictions Only administrator-level users can issue this command. Example Usage: To create and SNMP view: DES-3326S:4#create snmp view dlinkview 1.3.6 view_type included Command: create snmp view dlinkview 1.3.6 view_type included Success. DES-3326S:4# 49

delete snmp view Purpose Used to remove an SNMP view entry previously created on the Switch. Syntax delete snmp view [all|] Description The delete snmp view command is used to remove an SNMP view previously created on the Switch. Parameters − An alphanumeric string of up to 32 characters that identifies the SNMP view to be deleted. all − Specifies that all of the SNMP views on the Switch will be deleted. − The object ID that identifies an object tree (MIB tree) that will be deleted from the Switch. Restrictions Only administrator-level users can issue this command. Example Usage: To delete a previously configured SNMP view from the Switch: DES-3326S:4#delete snmp view dlinkview Command: delete snmp view dlinkview Success. DES-3326S:4# 50

show snmp view Purpose Used to display an SNMP view previously created on the Switch. Syntax show snmp view {} Description The show snmp view command displays an SNMP view previously created on the Switch. Parameters − An alphanumeric string of up to 32 characters that identifies the SNMP view that will be displayed. Restrictions Only administrator-level users can issue this command. Example Usage: To display the previously created SNMP view: DES-3326S: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 1.3.6.1.6.3 Excluded CommunityView .3.6.1.6.3.1 Included Total Entries: 10 DES-3326S:4# 51

create snmp community 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 create snmp community view [read_only|read_write] Description The create snmp community command is used to create an SNMP community string and to assign access-limiting characteristics to this community string. Parameters − 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. − 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. Restrictions Only administrator-level users can issue this command. Example Usage: To create the SNMP community string “dlink:” DES-3326S:4#create snmp community dlink view ReadView read_write Command: create snmp community dlink view ReadView read_write Success. 52

delete snmp community Purpose Used to remove a specific SNMP community string from the Switch. Syntax delete snmp community Description The delete snmp community command is used to remove a previously defined SNMP community string from the Switch. Parameters − 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. Restrictions Only administrator-level users can issue this command. Example Usage: To delete the SNMP community string “dlink:” DES-3326S:4#delete snmp community dlink Command: delete snmp community dlink Success. DES-3326S:4# 53

show snmp community Purpose Used to display SNMP community strings configured on the Switch. Syntax show snmp community {} Description The show snmp community command is used to display SNMP community strings that are configured on the Switch. Parameters − 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. Restrictions Only administrator-level users can issue this command. Example Usage: To display the currently entered SNMP community strings: DES-3326S:4#show snmp community Command: show snmp community SNMP Community Table Community Name View Name Access Right -------------------------------- -------------------------------- ------------ dlink ReadView read_write private CommunityView read_write public CommunityView read_only Total Entries: 3 54

config snmp engineID Purpose Used to configure a name for the SNMP engine on the Switch. Syntax config snmp engineID Description The config snmp engineID command configures a name for the SNMP engine on the Switch. Parameters − An alphanumeric string that will be used to identify the SNMP engine on the Switch. Restrictions Only administrator-level users can issue this command. Example Usage: To give the SNMP agent on the Switch the name “0035636666” DES-3326S:4#config snmp 0035636666 Command: config snmp engineID 0035636666 Success. DES-3326S:4# 55

create snmp group Purpose Used to create a new SNMP group, or a table that maps SNMP users to SNMP views. Syntax create snmp group [v1|v2c|v3 [noauth_nopriv|auth_nopriv|auth_priv]] {read_view |notify_view |notify_view } Description The create snmp group command creates a new SNMP group, or a table that maps SNMP users to SNMP views. Parameters − 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 in transit. Authentication − determines that an SNMP message is from a valid source. Encryption − scrambles the contents of messages to prevent it being seen 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 swtich and a remote SNMP manger will be encrypted. read_view – Specifies that the SNMP group being created can request SNMP messages. − 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 recieve SNMP trap messages generated by the Switch’s SNMP agent. Restrictions Only administrator-level users can issue this command. 56

Example Usage: To create an SNMP group named “sg1:” DES-3326S:4#create snmp group sg1 v3 noauth_nopriv read_view v1 write_view v1 notify_view v1 Command: create snmp group sg1 v3 noauth_nopriv read_view v1 write_view v1 notify_view v1 Success. DES-3326S:4# show snmp engineID Purpose Used to display the identification of the SNMP engine on the Switch. Syntax show snmp engineID Description The show snmp engineID command displays the identification of the SNMP engine on the Switch. Parameters None. Restrictions Only administrator-level users can issue this command. Example Usage: To display the current name of the SNMP engine on the Switch: DES-3326S:4#show snmp engineID Command: show snmp engineID SNMP Engine ID : 0035636666 DES-3326S:4# delete snmp group Purpose Used to remove an SNMP group from the Switch. Syntax delete snmp group Description The delete snmp group command is used to remove an SNMP group from the Switch. Parameters − An alphanumeric name of up to 32 characters that will identify the SNMP group the new SNMP user will be associated with. Restrictions Only administrator-level users can issue this command. 57

Example Usage: To delete the SNMP group named “sg1”. DES-3326S:4#delete snmp group sg1 Command: delete snmp group sg1 Success. DES-3326S:4# show snmp host Purpose Used to display the recipient of SNMP traps generated by the Switch’s SNMP agent. Syntax show snmp host {} Description 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. Parameters − The IP address of a remote SNMP manager that will receive SNMP traps generated by the Switch’s SNMP agent. Restrictions Only administrator-level users can issue this command. Example Usage: To display the currently configured SNMP hosts on the Switch: DES-3326S:4#show snmp host Command: show snmp host SNMP Host Table Host IP Address SNMP Version Community Name SNMPv3 User Name --------------- --------------------- -------------------- ----------------------------- 10.48.76.23 V2c private 10.48.74.100 V3 authpriv public Total Entries: 2 58

create snmp host Purpose Used to create a recipient of SNMP traps generated by the Switch’s SNMP agent. Syntax create snmp host [v1|v2c|v3 [noauth_nopriv|auth_nopriv|auth_priv] ] Description The create snmp host command creates a recipient of SNMP traps generated by the Switch’s SNMP agent. Parameters − 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 in transit. Authentication − determines that an SNMP message is from a valid source. Encryption − scrambles the contents of messages to prevent it being seen 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 swtich and a remote SNMP manger will be encrypted. − An alphanumeric string used to authorize a remote SNMP manager to access the Switch’s SNMP agent. Restrictions Only administrator-level users can issue this command. Example Usage: To create an SNMP host to receive SNMP messages: DES-3326S:4#create snmp host 10.48.74.100 v3 auth_priv public Command: create snmp host 10.48.74.100 v3 auth_priv public Success. DES-3326S:4# 59

delete snmp host Purpose Used to remove a recipient of SNMP traps generated by the Switch’s SNMP agent. Syntax delete snmp host Description The delete snmp host command deletes a recipient of SNMP traps generated by the Switch’s SNMP agent. Parameters − The IP address of a remote SNMP manager that will receive SNMP traps generated by the Switch’s SNMP agent. Restrictions Only administrator-level users can issue this command. Example Usage: To delete an SNMP host entry: DES-3326S:4#delete snmp host 10.48.74.100 Command: delete snmp host 10.48.74.100 Success. DES-3326S:4# 60

show snmp host Purpose Used to display the recipient of SNMP traps generated by the Switch’s SNMP agent. Syntax show snmp host {} Description 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. Parameters − The IP address of a remote SNMP manager that will receive SNMP traps generated by the Switch’s SNMP agent. Restrictions Only administrator-level users can issue this command. Example Usage: To display the currently configured SNMP hosts on the Switch: DES-3326S:4#show snmp host Command: show snmp host SNMP Host Table Host IP Address SNMP Version Community Name SNMPv3 User Name --------------- --------------------- -------------------- ----------------------------- 10.48.76.23 V2c private 10.48.74.100 V3 authpriv public Total Entries: 2 DES-3326S:4# 61

enable rmon Purpose Used to enable RMON on the Switch. Syntax enable rmon Description This command is used, in conjunction with the disable rmon command below, to enable and disable remote monitoring (RMON) on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To enable RMON: DES-3326S:4#enable rmon Command: enable rmon Success. DES-3326S:4# 62

disable rmon Purpose Used to disable RMON on the Switch. Syntax disable rmon Description This command is used, in conjunction with the enable rmon command above, to enable and disable remote monitoring (RMON) on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To disable RMON: DES-3326S:4#disable rmon Command: disable rmon Success. DES-3326S:4# 63

ping Purpose Used to test the connectivity between network devices. Syntax ping {times } {timeout } Description This command sends Internet Control Message Protocol (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. Parameters − the IP address of the remote device. times − the number of individual ICMP echo messages to be sent. The maximum value is 255. The default is inifinite times (pings are sent coninuosly). timeout − 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. Restrictions Only administrator-level users can issue this command. Example Usage: To send ICMP echo message to “10.48.74.121” for 4 times: DES-3326S:4#ping 10.48.74.121 times 4 Command: ping 10.48.74.121 Reply from 10.48.74.121, time<10ms Reply from 10.48.74.121, time<10ms Reply from 10.48.74.121, time<10ms Reply from 10.48.74.121, time<10ms Ping Statistics for 10.48.74.121 Packets: Sent =4, Received =4, Lost =0 DES-3326S:4# 64

traceroute Purpose Used to determine the network path between two devices. Syntax traceroute {ttl } {port } {timeout >} {probe } Description This command allows you to trace a route between the Switch and a give host on the network. Parameters − the IP address of the remote device. ttl − 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. The maximum value is port − the port number. Must be above 1024. timeout defines the time-out period while waiting for a response from the remote device. probe − the number of probing. Restrictions Only administrator-level users can issue this command. Example Usage: Trace the routed path between the Switch and 10.48.74.121. DES-3326S:4#traceroute 10.48.74.121 probe 3 Command: traceroute 10.48.74.121 probe 3 1 <10 ms. 10.48.74.121 1 <10 ms. 10.48.74.121 1 <10 ms. 10.48.74.121 DES-3326S:4# 65

8 MAC NOTIFICATION COMMANDS Command config mac_notification Parameters ports |all interval historysize enable mac_notification disable mac_notification show mac_notification {ports} 66

config mac_notification Purpose Used to configure MAC address notification. Syntax config mac_notification ports |all interval historysize <1 - 500> Description MAC address notificiation is used to monitor MAC addresses learned and entered into the FDB. Parameters ports - 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 highest Switch number, and the highest port number of the range (also separeted by a colon) are specified. The beginning and end of the port list range are seperated by a dash. For example, 1:3 would specify 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 – to configure all ports for MAC notification. interval - time in seconds between notifications. historysize <1 - 500> - maximum number of entries listed in the history log used for notification. Restrictions Only administrator-level users can issue this command. Example Usage: To configure a 60 second interval for MAC address notification on unit 1 ports 6-9: DES-3326S:4#config mac_notification ports 1:6-1:9 60 Command: config mac_notification ports 1:6-1:9 interval 60 Success. DES-3326S:4# 67

enable mac_notification Purpose Used to globally enable MAC address notification without changing the mac_notification configuration. Syntax enable mac_notification Description Enables MAC notication on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To globally enable MAC notification: DES-3326S:4#enable mac_notification Command: enable mac_notification Success. DES-3326S:4# disable mac_notification Purpose Used to disable MAC address notification globally without changing mac_notification configuration.. Syntax disable mac_notification Description Disables MAC notication on the Switch. Parameters none. Restrictions Only administrator-level users can issue this command. Example Usage: To globally disnable MAC notification: DES-3326S:4#disable mac_notification Command: disable mac_notification Success. DES-3326S:4# 68

show mac_notification Purpose Used to display MAC address notification. Syntax show mac_notification {ports} Description Displays MAC notification settings either per port or globally as desired. Parameters none – this will display global MAC notification settings currently configured including Interval, History Size and State. ports – this displays per ports MAC notification settings. Restrictions Only administrator-level users can issue this command. Example usage: To display global MAC notification settings: DES-3326S:4#show mac_notification Command: show mac_notification Global Mac Notification Settings State : Disabled Interval : 1 History Size : 1 DES-3326S:4# 69

Example Usage: To display per port MAC notification settings: DES-3326S:4#show mac_notification ports Command: show mac_notification ports Port # MAC Address Table Notification State ------ ------------------ ----------- ------- 1 Enabled 2 Enabled 3 Enabled 4 Enabled 5 Enabled 6 Enabled 7 Enabled 8 Enabled 9 Enabled 10 Enabled 11 Enabled 12 Enabled 13 Enabled 14 Enabled 15 Enabled 16 Enabled 17 Enabled 18 Enabled 19 Enabled 20 Enabled CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh 70

9 DOWNLOAD/UPLOAD COMMANDS The download|upload commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command Parameters download firmware unit [all|] configuration {increment} upload configuration log Each command is listed, in detail, in the following sections. 71

download Purpose Used to download and install new firmware or a Switch configuration file from a TFTP server. Syntax download [ firmware {unit [all|]}|configuration {increment}] Description This command is used to download a new firmware or a Switch configuration file from a TFTP server. Parameters firmware − Download and install new firmware on the Switch from a TFTP server. configuration − Download a Switch configuration file from a TFTP server. − The IP address of the TFTP server. − The DOS path and filename of the firmware or Switch configuration file on the TFTP server. For example, C:\3226S.had. unit [all|] − all specifies all units (Switches), is the unit id of the Switch that will receive the download. 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 The TFTP server must be on the same IP subnet as the Switch. Only administrator-level users can issue this command. Example usage: To download a configuration file: DES-3326S:4#download configuration 10.48.74.121 c:\cfg\setting.txt Command: download configuration 10.48.74.121 c:\cfg\setting.txt Connecting to server................... Done. Download configuration............. Done. DES-3326S:4# 72

upload Purpose Used to upload the current Switch settings or the Switch history log to a TFTP server. Syntax upload [configuration|log] Description This command is used to upload either the Switch’s current settings or the Switch’s history log to a TFTP server. Parameters configuration − Specifies that the Switch’s current settings will be uploaded to the TFTP server. log − Specifies that the Switch history log will be uploaded to the TFTP server. − The IP address of the TFTP server. The TFTP server must be on the same IP subnet as the Switch. − Specifies the location of the Switch configuration file on the TFTP server. This file will be replaced by the uploaded file from the Switch. Restrictions The TFTP server must be on the same IP subnet as the Switch. Only administrator-level users can issue this command. Example usage: To upload a configuration file: DES-3326S:4#upload configuration 10.48.74.121 c:\cfg\log.txt Command: upload configuration 10.48.74.121 c:\cfg\log.txt Connecting to server................... Done. Upload configuration...................Done. DES-3326S:4# 73

10 NETWORK MONITORING COMMANDS The network monitoring commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command Parameters show packet ports show error ports show utilitzation clear counters ports clear log show log index enable syslog disable syslog show syslog create syslog host all severity informational warning all facility local0 local1 local2 local3 local4 local5 local6 local7 udp_port ipaddress state [enable|disable] config syslog host all severity informational warning all facility local0 local1 local2 local3 local4 74

Command Parameters local5 local6 local7 udp_port ipaddress state [enable|disable] delete syslog host all show syslog host Each command is listed, in detail, in the following sections. 75

show packet ports Purpose Used to display statistics about the packets sent and received by the Switch. Syntax show packet ports Description This command is used to display statistics about packets sent and received by ports specified in the port list. Parameters − 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 highest Switch number, and the highest port number of the range (also separeted by a colon) are specified. The beginning and end of the port list range are seperated by a dash. For example, 1:3 would specify 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 packets analysis for port 14: DES-3326S:4#show packet port 14 Command: show packet ports 14 Port number : 14 Frame Size Frame Counts Frames/sec Frame Type Total Total/sec ------------ ------------ ---------- ---------- --------- --------- 64 254290 52 RX Bytes 41286744 17290 65-127 38129 12 RX Frames 359507 86 128-255 51878 13 256-511 8058 3 TX Bytes 72755 0 512-1023 2046 0 TX Frames 335 0 1024-1518 5441 6 Unicast RX 2245 0 Multicast RX 57480 20 Broadcast RX 299782 66 76

show error ports Purpose Used to display the error statistics for a range of ports. Syntax show error ports Description This command will display all of the packet error statistics collected and logged by the swtich for a given port list. Parameters − 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 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 would specify 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 error statistics of the port 3 of module 1: DES-3326S:4#show errors port 1:3 RX Frames TX Frames --------------- ---------------- CRC Error 0 Excessive Deferral 0 Undersize 0 CRC Error 0 Oversize 0 Late Collision 0 Fragment 0 Excessive Collision 0 Jabber 0 Single Collision 0 Drop Pkts 0 Collision 0 77

show utilization Purpose Used to display real-time port utilization statistics. Syntax show utilization Description This command will display the real-time port utilization statistics for the Switch. Parameters none. Restrictions none. Example Usage: To display the port utilization statistics: DES-3326S:4#show utilization Port TX/sec RX/sec Util Port TX/sec RX/sec Util ---- ---------- ---------- ---- ---- ---------- ---------- ---- 1:1 0 0 0 1:22 0 0 0 1:2 0 0 0 1:23 0 0 0 1:3 0 0 0 1:24 0 0 0 1:4 0 0 0 1:25 0 0 0 1:5 0 0 0 1:26 19 49 1 1:6 0 0 0 2:1 0 0 0 1:7 0 0 0 2:2 0 0 0 1:8 0 0 0 2:3 0 0 0 1:9 0 0 0 2:4 0 0 0 1:10 0 0 0 2:5 0 0 0 1:11 0 0 0 2:6 0 0 0 1:12 0 0 0 2:7 0 30 1 1:13 0 0 0 2:8 0 0 0 1:14 0 0 0 2:9 30 0 1 1:15 0 0 0 2:10 0 0 0 1:16 0 0 0 2:11 0 0 0 1:17 0 0 0 2:12 0 0 0 1:18 0 0 0 2:13 0 0 0 1:19 0 0 0 2:14 0 0 0 1:20 0 0 0 2:15 0 0 0 1:21 0 0 0 2:16 0 0 0 78

clear counters Purpose Used to clear the Switch’s statistics counters. Syntax clear counters {ports } Description This command will clear the counters used by the Switch to compile statistics. Parameters − 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 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 would specify 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 Only administrator-level users can issue this command. Example Usage: To clear the counters: DES-3326S:4#clear counters ports 2:7-2:9 Command: clear counters ports 2:7-2:9 Success. 79

clear log Purpose Used to clear the Switch’s history log. Syntax clear log 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: DES-3326S:4#clear log Command: clear log Success. DES-3326S:4# 80

show log Purpose Used to display the Switch history log. Syntax show log {index } Description This command will display the contents of the Switch’s history log. Parameters index − The show log command will display the history log until the log number reaches this value. Restrictions None. Example Usage: To display the Switch history log: DES-3326S:4#show log Command: show log Index Time Log Text ----- ------------------- ---------------------------------------------------- 75 00000 days 01:17:05 Successful login through Telnet (Username: Anonymous) 74 00000 days 01:02:56 Successful login through Console (Username: Anonymou s) 73 00000 days 01:01:49 Successful login through Web (Username: Anonymous) 72 00000 days 01:01:22 Port 4 link up, 100Mbps FULL duplex 71 00000 days 00:45:55 Internal Power is recovered 70 00000 days 00:43:58 Internal Power failed 69 00000 days 00:19:37 Console session timed out (Username: Anonymous) 68 00000 days 00:07:43 Redundant Power is working 67 00000 days 00:05:37 Successful login through Console (Username: Anonymous) 66 00000 days 00:04:20 Logout through Console (Username: Anonymous) 65 00000 days 00:04:11 Successful login through Console (Username: Anonymous) 64 00000 days 00:00:01 System started up 63 00000 days 00:00:01 Spanning Tree Protocol is disabled 62 00000 days 00:06:19 Spanning Tree Protocol is disabled 61 00000 days 00:06:16 Configuration saved to flash (Username: Anonymous) CTRL+C ESC q Quit SPACE n Next Page ENTER Next Entry a All 81

enable syslog Purpose Used to enable the system log to be sent to a remote host. Syntax enable syslog Description The enable syslog command enables the system log to be sent to a remote host. Parameters None. Restrictions Only administrator-level users can issue this command. Example Usage: To enable the syslog function on the Switch: DES-3326S:4#enable syslog Command: enable syslog Success. DES-3326S:4# 82

disable syslog Purpose Used to enable the system log to be sent to a remote host. Syntax disable syslog Description The disable syslog command disables the system log to be sent to a remote host. Parameters None. Restrictions Only administrator-level users can issue this command. Example Usage: To disable the syslog function on the swtich: DES-3326S:4#disable syslog Command: disable syslog Success. DES-3326S:4# 83

show syslog Purpose Used to display the syslog protocol status as enable or disabled. Syntax show syslog Description The show syslog command displays the syslog status as enabled or disabled. Parameters None. Restrictions None. Example Usage: To display the current status of the syslog function: DES-3326S:4#show syslog Command: show syslog Syslog Global State: Enabled DES-3326S:4# 84

create syslog host Purpose Used to create a new syslog host. Syntax config syslog host [all|] {severity [informational|warning|all]| facility[local0|local1|local2|local3| local4|local5|local6|local7]|udp_port| ipaddress | state[enable|disable] Description The create syslog host command is used to create a new syslog host. Parameters all − Specifies that the command will be applied to all hosts. − 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 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. 85

create syslog host Parameters 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) 86

create syslog host Parameters 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 − Specifies the UDP port number that the syslog protocol will use to send messages to the remote host. ipaddress − 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. Example Usage: To create syslog host: DES-3326S:4#create syslog host 1 severity all facility local0 Command: create syslog host 1 severity all facility local0 Success. DES-3326S:4# 87

config syslog host Purpose Used to configure the syslog protocol to send system log data to a remote host. Syntax config syslog host [all|] {severity [informational|warning|all]| facility[local0|local1|local2|local3| local4|local5|local6|local7]|udp_port| ipaddress | state[enable|disable] Description The config syslog host command is used to configure the syslog protocol to send system log information to a remote host. Parameters all − Specifies that the command will be applied to all hosts. − 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 88

config syslog host Parameters 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 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 89

config syslog host Parameters Parameters 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 − Specifies the UDP port number that the syslog protocol will use to send messages to the remote host. ipaddress − 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. Example Usage: To create syslog host: DES-3326S:4#config syslog host all severity all facility local0 Command: config syslog host all severity all facility local0 Success. DES-3326S:4# 90

delete syslog host Purpose Used to remove a syslog host, that has been previously configured, from the Switch. Syntax delete syslog host [|all] Description The delete syslog host command is used to remove a syslog host, that has been previously configured, from the Switch. Parameters − Specifies that the command will be applied to an index of hosts. There are four available indexes, numbered 1 through 4. all − Specifies that the command will be applied to all hosts. Restrictions Only administrator-level users can issue this command. Example Usage: To delete a previously configured syslog host: DES-3326S:4#delete syslog host 4 Command: delete syslog host 4 Success. DES-3326S:4# 91

show syslog host Purpose Used to display the syslog hosts currently configured on the Switch. Syntax show syslog host {} Description The show syslog host command is used to display the syslog hosts that are currently configured on the Switch. Parameters − Specifies that the command will be applied to an index of hosts. There are four available indexes, numbered 1 through 4. Restrictions None. Example Usage: To show Syslog host information: DES-3326S:4#show syslog host Command: show syslog host Syslog Global State: Disabled Host Id Host IP Address Severiry Facility UDP port Status ------- --------------- -------------- -------- -------- -------- 1 10.1.1.2 All Local0 514 Disabled 2 10.40.2.3 All Local0 514 Disabled 3 10.21.13.1 All Local0 514 Disabled Total Entries : 3 DES-3326S:4# 92

11 SPANNING TREE COMMANDS The Switch supports 802.1w Rapid STP and 802.1d STP. The spanning tree commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table. Command Parameters config stp maxage hellotime forwarddelay priority fdpdu [enable|disable] txholdcount <1-10> version [rstp|stp] config stp ports cost priority migrate [yes|no] edge [true|false] p2p [true|false|auto] state [enable|disable] enable stp disable stp show stp show stp ports Each command is listed, in detail, in the following sections. 93

config stp Purpose Used to setup STP and RSTP on the Switch. Syntax config stp {maxage |hellotime |forwarddelay |priority |fbpdu [enable|disable]| txholdcount <1-10>| version[rstp|stp]} Description This command is used to setup the Spanning Tree Protocol for the entire Switch. By default, the Switch is uses Rapid Spanning Tree Protocl (RSTP) when it is enabled. The default settings for the Switch have Spanning Tree Protocol disabled (see enable/disable stp commands). Parameters maxage − The maximum amount of time (in seconds) that the Switch will wait to receive a BPDU packet before reconfiguring STP. The default is 20 seconds. hellotime − The time interval between transmission of configuration messages by the root device. The default is 2 seconds. forwarddelay − The maximum amount of time (in seconds) that the root device will wait before changing states. The default is 15 seconds. priority − A numerical value between 0 and 61440 that is used in determining the root device, root port, and designated port. The device with the highest priority becomes the root device. The lower the numerical value, the higher the priority. The default is 32,768. fbpdu [enable|disable] − Allows the forwarding of STP BPDU packets from other network devices when STP is disabled on the Switch. The default is enabled. txholdcount <1-10> - the maximum number of Hello packets transmitted per interval. Default value = 3. version [rstp|stp] - select the Spanning Tree Protocol version used for the Switch. For IEEE 802.1d STP select stp. Select rstp for IEEE 802.1w Rapid STP. Restrictions Only administrator-level users can issue this command. Example usage: To configure STP with maxage 18 and hellotime 4: DES-3326S:4#config stp maxage 18 hellotime 4 Command: config stp maxage 18 hellotime 4 Success. DES-3326S:4# 94