D-Link DS-3550 Command Line Interface Reference Manual

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DES-3550

Layer 2 Switch

Command Line Interface Reference Manual

First Edition (February 2004)

651ES3550015

Printed In Taiwan

RECYCLABLE

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Wichtige Sicherheitshinweise

1. Bitte lesen Sie sich diese Hinweise sorgfältig durch.

2. Heben Sie diese Anleitung für den spätern Gebrauch auf.

3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung.

4. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.

5. Das Gerät is vor Feuchtigkeit zu schützen.

6. Bei der Aufstellung des Gerätes ist auf sichern Stand zu achten. Ein Kippen oder Fallen könnte Verletzungen hervorrufen. Verwenden Sie nur sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers.

7. Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.

8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.

9. Die Netzanschlußsteckdose muß aus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt haben.

10. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollete auch nichts auf der Leitung abgestellt werden.

11. Alle Hinweise und Warnungen die sich am Geräten befinden sind zu beachten.

12. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.

13. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw. Elektrischen Schlag auslösen.

14. Öffnen Sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.

15. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu überprüfen: a – Netzkabel oder Netzstecker sint beschädigt. b – Flüssigkeit ist in das Gerät eingedrungen. c – Das Gerät war Feuchtigkeit ausgesetzt. d – Wenn das Gerät nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen. e – Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt. f – Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.

16. Bei Reparaturen dürfen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile verwendet werden. Der Einsatz von ungeeigneten Ersatzteilen kann eine weitere Beschädigung hervorrufen.

17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner. Somit stellen Sie die Betriebssicherheit des Gerätes sicher.

18. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem Gerätegewicht grőßer 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.

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iii

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Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited warranty for its product only to the person or entity that originally purchased the product from:

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D-Link warrants that the hardware portion of the D-Link products described below will be free from material defects in

5-Year Limited Warranty for the Product(s) is defined as follows:

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current functional specifications for the Software, as set forth in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days (“Warranty Period”), provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the Warranty Period, the magnetic media on which D-Link delive rs the Software will be free of physical defects. D-Link’s sole obligation shall be to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Link’s functional specifications for the Software or to refund at D-Link’s sole discretion. Except as otherwise agreed by D-Link in writing, the replacement Software is provided only to the original licensee, and is subject to the terms and conditions of the license granted by D-Link for the Software. Software will be warranted for the remainder of the original Warranty Period from the date or original retail purchase. If a material non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to replace the non-conforming Software, the price paid by the original licensee for the non-conforming Software will be refunded by D-Link; provided that the nonconforming Software (and all copies thereof) is first returned to D-Link. The license granted respecting any Software for which a refund is given automatically terminates.

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detail to allow D-Link to confirm the same.

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requested, provide written proof of purchase of the product (such as a copy of the dated purchase invoice for the product) before the warranty service is provided.

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ensure that it will not be damaged in transit, and the RMA number must be prominently marked on the outside of the package. Do not include any manuals or accessories in the shipping package. D-Link will only replace the defective portion of the Product and will not ship back any accessories.

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inventory clearance or liquidation sales or other sales in which D-Link, the sellers, or the liquidators e xpressly disclaim their warranty obligation pertaining to the product. Repair by anyone other than D-Link or an Authorized D-Link Service Office will void this Warranty.

Disclaimer of Other Warranties: EXCEPT FOR THE LIMITED WARRANTY SPECIFIED HEREIN, THE PRODUCT IS PROVIDED “AS-IS” WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO NINETY (90) DAYS. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT.

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The product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you. An address/telephone/fax/e-mail/Web site list of D-Link offices is provided in the back of this manual.

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Copyright 2003 D-Link Corporation. Contents subject to change without prior notice. D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. All other trademarks belong to their respective proprietors.

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.

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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 user’s guide, 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

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Table of Contents

Introduction...................................................................................................................................................................................... 1

Using the Console CLI..................................................................................................................................................................... 4

Command Syntax............................................................................................................................................................................. 8

Basic Switch Commands................................................................................................................................................................ 10

Switch Port Commands.................................................................................................................................................................. 21

Port Security Commands................................................................................................................................................................ 24

Network Management (SNMP) Commands .................................................................................................................................. 27

Switch Utility Commands .............................................................................................................................................................. 49

Network Monitoring Commands ................................................................................................................................................... 53

Spanning Tree Commands............................................................................................................................................................. 66

Forwarding Database Commands .................................................................................................................................................. 72

Broadcast Storm Control Commands............................................................................................................................................. 80

QoS Commands ............................................................................................................................................................................. 82

Port Mirroring Commands............................................................................................................................................................. 90

VLAN Commands.......................................................................................................................................................................... 94

Asymmetric VLAN Commands................................................................................................................................................... 100

Link Aggregation Commands ...................................................................................................................................................... 102

Basic IP Commands ..................................................................................................................................................................... 108

IGMP Snooping Commands ........................................................................................................................................................ 110

802.1X Commands....................................................................................................................................................................... 120

Access Control List (ACL) Commands ....................................................................................................................................... 132

Traffic Segmentation Commands................................................................................................................................................. 143

Time and SNTP Commands......................................................................................................................................................... 145

ARP Commands........................................................................................................................................................................... 152

Routing Table Commands............................................................................................................................................................156

MAC Notification Commands ..................................................................................................................................................... 158

Access Authentication Control Commands.................................................................................................................................. 162

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Single IP Management Commands...............................................................................................................................................187

Command History List..................................................................................................................................................................198

Technical Specifications...............................................................................................................................................................201

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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.

There is no initial username or password. Just press the Enter key twice to display the CLI input cursor − DES-3550:4#. This is the command line where all commands are input.

Setting the Switch’s IP Address

Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). The Switch’s default IP address is 10.90.90.90. You can change the default Switch IP address to meet the specification of your networking address scheme.

The Switch is also assigned a unique MAC address by the factory. This MAC address cannot be changed, and can be found on the initial boot console screen – shown below.

Figure 1-1. Initial CLI screen

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Figure 1-2. Boot Screen

The Switch’s MAC address can also be found in the Web management program on the Switch Information (Basic Settings) window on the Configuration menu.

The IP address for the switch must be set before it can be managed with the Web-based manager. The Switch IP address can be automatically set using BOOTP or DHCP protocols, in which case the actual address assigned to the switch must be known.

The IP address may be set using the Command Line Interface (CLI) over the console serial port as follows:

1. Starting at the command line prompt, enter the commands config ipif System ipaddress

xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy

. Where the x’s represent the IP address to be assigned to the IP interface named

System and the y’s represent the corresponding subnet mask.

2. Alternatively, you can enter config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x’s represent the IP address to be assigned to the IP interface named System and the 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.

Figure 1-3. Assigning an IP Address

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In the above example, the Switch was assigned an IP address of 10.53.13.144/8 with a subnet mask of 255.0.0.0. The system message Success indicates that the command was executed successfully. The Switch can now be configured and managed via Telnet, SNMP MIB browser and the CLI or via the Web-based management agent using the above IP address to connect to the Switch.

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USING THE CONSOLE CLI

The DES-3550 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.

: Switch configuration settings are saved to non-volatile RAM using

Note

the save command. The current configuration will then be retained in the switch’s NV-RAM, and reloaded when the Switch is rebooted. If the Switch is rebooted without using the save command, the last configuration saved to NV-RAM will be loaded.

Connecting to the Switch

The console interface is used by connecting the Switch to a VT100-compatible terminal or a computer running an ordinary terminal emulator program (e.g., the HyperTerminal program included with the Windows operating system) using an RS-232C serial cable. Your terminal parameters will need to be set to:

• VT-100 compatible

• 9600 baud

• 8 data bits

• No parity

• One stop bit

• No flow control

You can also access the same functions over a Telnet interface. Once you have set an IP address for your Switch, you can use a Telnet program (in VT-100 compatible terminal mode) to access and control the Switch. All of the screens are identical, whether accessed from the console port or from a Telnet interface.

After the Switch reboots and you have logged in, the console looks like this:

Figure 2-1. Initial Console Screen

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Commands are entered at the command prompt, DES-3550:4#.

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

When you enter a command without its required parameters, the CLI will prompt you with a

Next possible completions:

message.

Figure 2-3. Example Command Parameter Help

In this case, the command

config account

was entered with the parameter

. The CLI will then prompt you to enter the <username> with the message, Next possible completions:. Every command in the CLI has this feature, and complex commands have several layers of parameter prompting.

In addition, after typing any given command plus one space, you can see all of the next possible sub-commands, in sequential order, by repeatedly pressing the Tab key.

To re-enter the previous command at the command prompt, press the up arrow cursor key. The previous command will appear at the command prompt.

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Figure 2-4. Using the Up Arrow to Re-enter a Command

In the above example, the command config account was entered without the required parameter <username>, the CLI returned the Next possible completions: <username> prompt. The up arrow cursor control key was pressed to re-enter the previous command (config account) at the command prompt. Now the appropriate username can be entered and the config account command re-executed.

All commands in the CLI function in this way. In addition, the syntax of the help prompts are the same as presented in this manual − angle brackets < > indicate a numerical value or character string, braces { } indicate optional parameters or a choice of parameters, and brackets [ ] indicate required parameters.

If a command is entered that is unrecognized by the CLI, the top-level commands will be displayed under the

Available

commands: prompt.

Figure 2-5. The Next Available Commands Prompt

The top-level commands consist of commands such as show or config. Most of these commands require one or more parameters to narrow the top-level command. This is equivalent to show what? or config what? Where the what? is the next parameter.

For example, if you enter the show command with no additional parameters, the CLI will then display all of the possible next parameters.

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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.

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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.

Purpose Encloses a variable or value that must be specified.

Syntax

Description In the above syntax example, you must supply an IP interface name in

Example Command

create ipif <ipif_name> vlan <vlan_name 32> ipaddress <network_address>

the <ipif_name> space, a VLAN name in the <vlan_name 32> space, and the network address in the <network_address> space. Do not type the angle brackets.

create ipif Engineering vlan Design ipaddress 10.24.22.5/255.0.0.0

[square brackets]

Purpose Encloses a required value or set of required arguments. One value or

argument can be specified.

Syntax

Description

Example Command

create account [admin|user]

In the above syntax example, you must specify either an

level account to be created. Do not type the square brackets.

user

create account admin

admin

or a

| vertical bar

Purpose Separates two or more mutually exclusive items in a list, one of which

must be entered.

Syntax

Description

Example Command

show snmp [community|detail]

In the above syntax example, you must specify either

detail

show snmp community

{braces}

Purpose Encloses an optional value or set of optional arguments.

Syntax

reset {[config|system]}

. Do not type the backslash.

community,

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{braces}

Description

Example command

In the above syntax example, you have the option to specify

. It is not necessary to specify either optional value, however the

detail

effect of the system reset is dependent on which, if any, value is specified. Therefore, with this example there are three possible outcomes of performing a system reset. See the following chapter, Basic Commands for more details about the reset command.

reset config

config

Line Editing Key Usage

Delete Deletes the character under the cursor and then shifts the remaining

characters in the line to the left.

Backspace Deletes the character to the left of the cursor and shifts the remaining

characters in the line to the left.

Insert or Ctrl+R Toggle on and off. When toggled on, inserts text and shifts previous

text to right. 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.

Page 18

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 <username 15>

show account

delete account <username 15>

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 <tcp_port_number 1-65535>

disable telnet

enable web <tcp_port_number 1-65535>

disable web

save

reboot

reset {[config|system]}

logout

Each command is listed, in detail, in the following sections.

create account

Purpose

Syntax create [admin | user] <username 15>

Description

Parameters

Restrictions

Used to create user accounts

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.

Admin <username>

User <username>

Only Administrator-level users can issue this command.

Usernames can be between 1 and 15 characters.

Passwords can be between 0 and 15 characters.

Page 19

Example usage:

To create an administrator-level user account with the username “dlink”.

DES-3550:4#create account admin dlink Command: create account admin dlink

Enter a case-sensitive new password:**** Enter the new password again for confirmation:****

Success.

DES-3550:4#

config account

Example usage:

To configure the user password of “dlink” account:

Purpose

Syntax config account <username>

Description

Parameters

Restrictions

DES-3550:4#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-3550:4#

Used to configure user accounts

The config account command configures a user account that has been created using the

Only Administrator-level users can issue this command.

Usernames can be between 1 and 15 characters.

Passwords can be between 0 and 15 characters.

create account

command.

show account

Purpose

Syntax show account

Used to display user accounts

Page 20

show account

Example usage:

To display the accounts that have been created:

Description

Parameters

Restrictions

Displays all user accounts created on the switch. Up to 8 user accounts can exist on the switch at one time.

None.

Only Administrator-level users can issue this command.

DES-3550:4#show account

Command: show account

Current Accounts:

Username Access Level

--------------- ------------

dlink Admin

Total Entries: 1

DES-3550:4#

Example usage:

To delete the user account “System”:

delete account

Purpose

Syntax delete account <username>

Description

Parameters

Restrictions

Used to delete an existing user account

The delete account command deletes a user account that has been

created using the

Only Administrator-level users can issue this command.

DES-3550:4#delete account System

Command: delete account System

Success.

DES-3550:4#

create account

command.

show session

Purpose

Used to display a list of currently logged-in users.

Page 21

show session

Syntax show session

Example usage:

To display the way that the users logged in:

Description

This command displays a list of all the users that are logged-in at the time the command is issued.

Parameters

Restrictions

None

None.

DES-3550:4#show session

Command: show session

ID Login Time Live Time From Level Name

-- ------------------------------- --------- ------------ ----- -----------

*8 00000 days 00:00:37 03:36:27 Serial Port 4 Anonymous

show switch

Purpose

Used to display information about the switch.

Example usage:

To display the switch information:

Syntax show switch

Description

Parameters

Restrictions

DES-3550:4#show switch Command: show switch

Device Type : DES-3550 Fast Ethernet Switch Combo Port : 1000Base-T + 1000Base-T MAC Address : 00-01-02-03-04-00 IP Address : 10.41.44.22 (Manual) VLAN Name : default Subnet Mask : 255.0.0.0 Default Gateway : 0.0.0.0 Boot PROM Version : Build 3.00.001 Firmware Version : Build 1.00-B02 Hardware Version : 2A1 Device S/N : Power Status : Main – Normal, Redundant – Not Present System Name : DES-3550

This command displays information about the switch.

None.

Only Administrator-level users can issue this command.

Page 22

System Location : 7th_flr_east_cabinet System Contact : Julius_Erving_212-555-6666 Spanning Tree : Disabled GVRP : Disabled IGMP Snooping : Disabled TELNET : Enabled (TCP 23) WEB : Enabled (TCP 80) RMON : Enabled Asymmetric VLAN : Disabled

DES-3550:4#

show serial_port

Purpose

Syntax show serial_port

Description

Parameters

Restrictions

Example usage:

To display the serial port setting:

Used to display the current serial port settings.

This command displays the current serial port settings.

None.

None

DES-3550:4#show serial_port

Command: show serial_port

Baud Rate : 9600

Data Bits : 8

Parity Bits : None

Stop Bits : 1

Auto-Logout : 10 mins

DES-3550:4#

config serial_port

Purpose

Syntax config serial_port {baud_rate [9600|19200|38400|115200] |

Description

Parameters

Used to configure the serial port and the auto logout time for idle connections.

auto_logout [never | 2_minutes | 5_minutes | 10_minutes | 15_minutes]}

This command is used to configure the serial port’s baud rate and auto logout settings.

baud_rate[9600|19200|38400|115200]− The serial bit rate that will be used to communicate with the management host. There are four options: 9600,

Page 23

config serial_port

19200, 38400, 115200.

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.

Example usage:

To configure baud rate:

Restrictions

Only administrator-level users can issue this command.

DES-3550:4#config serial_port baud_rate 115200 Command: config serial_port baud_rate 115200

Success.

DES-3550:4#

enable clipaging

Purpose

Syntax enable clipaging

Description

Used to pause the scrolling of the console screen when the show command displays more than one page.

This command is used when issuing the show command which causes the console screen to rapidly scroll through several pages. This command will cause the console to pause at the end of each page. The default setting is enabled.

Parameters

Restrictions

Example usage:

To enable pausing of the screen display when the show command output reaches the end of the page:

None.

Only administrator-level users can issue this command.

Page 24

DES-3550:4#enable clipaging

Command: enable clipaging

Success.

DES-3550:4#

disable clipaging

Purpose

Syntax disable clipaging

Description

Parameters

Restrictions

Example usage:

To disable pausing of the screen display when show command output reaches the end of the page:

Used to disable the pausing of the console screen scrolling at the end of each page when the show command displays more than one screen of information.

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.

None.

Only administrator-level users can issue this command.

DES-3550:4#disable clipaging

Command: disable clipaging

Success.

DES-3550:4#

enable telnet

Purpose

Syntax enable telnet <tcp_port_number 1-65535>

Description

Parameters

Restrictions

Example usage:

To enable Telnet and configure port number:

Used to enable communication with and management of the switch using the Telnet protocol.

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.

<tcp_port_number> − The TCP port number. TCP ports are numbered between 1 and 65535. The “well-known” TCP port for the Telnet protocol is 23.

Only administrator-level users can issue this command.

Page 25

DES-3550:4#enable telnet 23

Command: enable telnet 23

Success.

DES-3550:4#

disable telnet

Example usage:

To disable the Telnet protocol on the switch:

Purpose

Syntax disable telnet

Description

Parameters

Restrictions

Used to disable the Telnet protocol on the switch.

This command is used to disable the Telnet protocol on the switch.

None.

Only administrator-level users can issue this command.

DES-3550:4#disable telnet

Command: disable telnet

Success.

DES-3550:4#

enable web

Purpose

Used to enable the HTTP-based management software on the switch.

Syntax enable web <tcp_port_number 1-65535>

Description

Parameters

Restrictions

Example usage:

To enable HTTP and configure port number:

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.

<tcp_port_number> − The TCP port number. TCP ports are numbered between 1 and 65535. The “well-known” port for the Webbased management software is 80.

Only administrator-level users can issue this command.

Page 26

DES-3550:4#enable web 80

Command: enable web 80

Success.

DES-3550:4#

disable web

Example usage:

To disable HTTP:

Purpose

Syntax disable web

Description

Parameters

Restrictions

Used to disable the HTTP-based management software on the

switch.

This command disables the Web-based management software on

the switch.

None.

Only administrator-level users can issue this command.

DES-3550:4#disable web

Command: disable web

Success.

DES-3550:4#

Example usage:

To save the switch’s current configuration to non-volatile RAM:

save

Purpose

Syntax save

Description

Parameters

Restrictions

Used to save changes in the switch’s configuration to non-volatile RAM.

This command is used to enter the current switch configuration into non-volatile RAM. The saved switch configuration will be loaded into the switch’s memory each time the switch is restarted.

None

Only administrator-level users can issue this command.

Page 27

DES-3550:4#save

Command: save

Saving all configurations to NV-RAM... Done.

DES-3550:4#

reboot

Purpose

Syntax reboot

Description

Parameters

Restrictions

Example usage:

To restart the switch:

DES-3550:4#reboot

Command: reboot

Are you sure want to proceed with the system reboot? (y|n)

Please wait, the switch is rebooting...

reset

Purpose

Syntax reset {[config|system]}

Used to restart the switch.

This command is used to restart the switch.

None.

Used to reset the switch to the factory default settings.

Description

Parameters

Restrictions

Example usage:

This command is used to restore the switch’s configuration to the default settings assigned from the factory.

config − If the keyword ‘config’ is specified, all of the factory default settings are restored on the switch including the IP address, user accounts, and the switch history log. The switch will not save or reboot.

system − If the keyword ‘system’ is specified all of the factory default settings are restored on the switch. The switch will save and reboot after the settings are changed to default. Rebooting will clear all entries in the Forwarding Data Base.

If no parameter is specified, the switch’s current IP address, user accounts, and the switch history log are not changed. All other parameters are restored to the factory default settings. The switch will not save or reboot.

Only administrator-level users can issue this command.

Page 28

To restore all of the switch’s parameters to their default values:

DES-3550:4#reset config Command: reset config

Are you sure to proceed with system reset?(y/n)

Success.

DES-3550:4#

Example usage:

To initiate the login procedure:

Purpose

Syntax login

Description

Parameters

Restrictions

DES-3550:4#login

Command: login

UserName:

Used to log in a user to the switch’s console.

This command is used to initiate the login procedure. The user will

be prompted for his Username and Password.

None.

logout

Purpose

Used to log out a user from the switch’s console.

Syntax logout

Description

Parameters

Restrictions

Example usage:

To terminate the current user’s console session:

DES-3550:4#logout

This command terminates the current user’s session on the switch’s console.

None.

Page 29

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 [<portlist | all> {speed [auto | 10_half | 10_full |100_half | 100_full |

1000_full} | flow_control [enable | disable] | learning [enable | disable] state [enable | disable]} description <desc 32>

show ports <portlist> {description}

Each command is listed, in detail, in the following sections.

config ports

Purpose

Syntax config ports [<portlist | all>] {speed [auto | 10_half | 10_full |100_half

Description

Parameters

Used to configure the Switch’s Ethernet port settings.

| 100_full | 1000_half | 1000_full} | flow_control [enable | disable] | learning [enable | disable] state [enable | disable] description <desc 32>

This command allows for the configuration of the switch’s Ethernet ports. Only the ports listed in the <portlist> will be affected.

all − Configure all ports on the switch.

<portlist> − Specifies a port or range of ports to be configured. Tauto − Enables auto-negotiation for the specified range of ports.

[10|100|1000] − Configures the speed in Mbps for the specified range of ports. Gigabit ports are statically set to 1000 and cannot be set to slower speeds.

[half|full] − Configures the specified range of ports as either full- or halfduplex.

[master | slave] This parameter denotes whether the ports selected will be of the master switch or the slave switch and is only used when the port speed is selected to be 1000_full.

flow_control [enabled | disabled] – Enable or disable flow control for the specified ports.

learning [enabled | disabled] − Enables or disables the MAC address learning on the specified range of ports.

state [enabled | disabled] − Enables or disables the specified range of ports.

description <desc 32> - Enter an alphanumeric string of no more than 32 characters to describe a selected port interface.

Restrictions

Example usage:

Only administrator-level users can issue this command.

Page 30

To configure the speed of port 3 to be 10 Mbps, full duplex, with learning and state enabled:

DES-3550:4#config ports 1-3 speed 10_full learning enabled state enabled

Command: config ports 1-3 speed 10_full learning enabled state enabled

Success.

DES-3550:4#

show ports

Example usage:

To display the configuration of all ports on a switch:

Purpose

Used to display the current configuration of a range of ports.

Syntax show ports <portlist> {description}

Description

This command is used to display the current configuration of a range

of ports.

Parameters

<portlist> − Specifies a port or range of ports to be displayed.

{description} – Adding this parameter to the

indicates that the port description will be included in the display.

Restrictions

None.

DES-3550:4#show ports Command show ports:

Port Port Settings Connection Address State Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl Learning

------ -------- --------------------- --------------------- -------1 Enabled Auto/Enabled Link Down Enabled 2 Enabled Auto/Enabled Link Down Enabled 3 Enabled Auto/Enabled Link Down Enabled 4 Enabled Auto/Enabled Link Down Enabled 5 Enabled Auto/Enabled Link Down Enabled 6 Enabled Auto/Enabled Link Down Enabled 7 Enabled Auto/Enabled Link Down Enabled 8 Enabled Auto/Enabled Link Down Enabled 9 Enabled Auto/Enabled Link Down Enabled 10 Enabled Auto/Enabled 100M/Full/None Enabled 11 Enabled Auto/Enabled Link Down Enabled 12 Enabled Auto/Enabled 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 Link Down 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

show ports

command

Page 31

Example usage:

To display the configuration of all ports on a switch, with description:

DES-3550:4#show ports description

Command: show ports description

Port Port Settings Connection Address

State Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl Learning

------ -------- --------------------- --------------------- --------

1 Enabled Auto/Disabled Link Down Enabled

Description: dads1

2 Enabled Auto/Disabled Link Down Enabled

Description:

3 Enabled Auto/Disabled Link Down Enabled

Description:

4 Enabled Auto/Disabled Link Down Enabled

Description:

5 Enabled Auto/Disabled Link Down Enabled

Description:

6 Enabled Auto/Disabled Link Down Enabled

Description:

7 Enabled Auto/Disabled Link Down Enabled

Description:

8 Enabled Auto/Disabled Link Down Enabled

Description:

9 Enabled Auto/Disabled Link Down Enabled

Description:

10 Enabled Auto/Disabled Link Down Enabled

Description:

CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh

Page 32

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 ports

delete port_security entry

clear port_security_entry

show port_security {ports <portlist>}

Each command is listed, in detail, in the following sections.

[<portlist>| all ] {admin_state [enable| disable] |max_learning_addr <max_lock_no 0-10> | lock_address_mode [Permanent | DeleteOnTimeout | DeleteOnReset]}

vlan_name <vlan_name 32> mac_address <macaddr> port <port>

port <portlist>

config port_security ports

Purpose

Syntax config port_security ports [<portlist>| all ] {admin_state [enable|

Description

Parameters

Used to configure port security settings.

disable] | max_learning_addr <max_lock_no 0-10> | lock_address_mode [Permanent | DeleteOnTimeout | DeleteOnReset]}

This command allows for the configuration of the port security feature. Only the ports listed in the <portlist> are effected.

portlist − specifies a port or range of ports to be configured.

Example usage:

Restrictions

all − configure port security for all ports on the switch.

admin_state [enable|disable] – enable or disable port security for the listed ports.

max_learning_addr <max_lock_no 0-10> - use this to limit the number of MAC addresses dynamically listed in the FDB for the ports.

lock_address_mode[Permanent | DeleteOnTimout | DeleteOnReset] – Indicates the method of locking addresses. The user has three choices:

Permanent – The locked addresses will not age out after the



aging timer expires.

DeleteOnTimeout – The locked addresses will age out after the



aging timer expires.

DeleteOnReset – The locked addresses will not age out until the



switch has been reset.

Only administrator-level users can issue this command.

Page 33

To configure the port security:

DES-3550:4#config port_security ports 1-5 admin_state enable max_learning_addr 5 lock_address_mode DeleteOnReset

Command: config port_security ports 1-5 admin_state enable max_learning_addr 5 lock_address_mode DeleteOnReset

Success.

DES-3550:4#

delete port_security_entry

Purpose

Syntax delete port_security_entry vlan name <vlan_name 32>

Description

Parameters

Restrictions

Example usage:

To delete a port security entry:

DES-3550:4#delete port_security_entry vlan_name default mac_address 00-01-30-10-2C-C7 port 6

Command: delete port_security_entry vlan_name default mac_address 00-01-30-10-2C-C7 port 6

Success.

DES-3550:4#

Used to delete a port security entry by MAC address, port number and VLAN ID.

mac_address <macaddr> port <port>

This command is used to delete a single, previously learned port security entry by port, VLAN name, and MAC Address.

vlan name <vlan_name 32> Enter the corresponding vlan name of the port which the user wishes to delete.

mac_address <macaddr> - Enter the corresponding MAC address, previously learned by the port, which the user wishes to delete.

port <port> - Enter the port number which has learned the previously enterd MAC address.

Only administrator-level users can issue this command.

clear port_security_entry

Purpose

Syntax clear port_security_entry port <portlist>

Description

Used to clear MAC address entries learned from a specified port for the port security function.

This command is used to clear MAC address entries which were learned by the switch by a specified port. This command only relates

Page 34

clear port_security_entry

to the port security function.

Parameters

Restrictions

Example usage:

To clear a port security entry by port:

DES-3550:4# clear port_security_entry port 6

Command: clear port_security_entry port 6

Success.

DES-3550:4#

<portlist> − specifies a port or port range the user wishes to clear.

Only administrator-level users can issue this command.

show port_security

Purpose

Syntax show port_security {ports <portlist>}

Description

Used to display the current port security configuration.

This command is used to display port security information of the

switch ports. The information displayed includes port security admin

state, maximum number of learning address and lock mode.

Example usage:

To display the port security configuration:

Parameters

Restrictions

DES-3550:4#show port_security ports 1-5 Command: show port_security ports 1-5

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

CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh

<portlist> − specifies a port or range of ports to be viewed.

None.

Page 35

NETWORK MANAGEMENT (SNMP) COMMANDS

The network management commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.

The DES-3550 supports the Simple Network Management Protocol (SNMP) versions 1, 2c, and 3. You can specify 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

v1 Community String

v2c Community String

v3 Username

v3 MD5 or SHA Authentication is based on the HMAC-MD5 or

v3 MD5 DES or SHA DES Authentication is based on the HMAC-MD5 or

Authentication Method Description

Community String is used for authentication − NoAuthNoPriv

Username is used for authentication − NoAuthNoPriv

HMAC-SHA algorithms − AuthNoPriv

HMAC-SHA algorithms − AuthPriv. DES 56-bit encryption is added based on the CBC-

DES (DES-56) standard

Command Parameters

create snmp user <username 32> <groupname 32> {encrypted [by_password auth

[md5 <auth_password 8-16 > | sha <auth_password 8-20 >] priv [none | des <priv_password 8-16> ] | by_key auth [md5 <auth_key 32-32>| sha <auth_key 40-40>] priv [none | des <priv_key 3232> ]]}

delete snmp user <SNMP_name 32>

show snmp user

create snmp view

delete snmp view <view_name 32> [all | oid]

show snmp view <view_name 32>

create snmp community

delete snmp community

show snmp community

config snmp

<view_name 32> <oid> view_type [included | excluded]

<community_string 32> view <view_name 32> [read_only | read_write]

<community_string 32>

<snmp_engineID>

Page 36

Command Parameters

engineID

show snmp engineID

create snmp group <groupname 32> {v1 | v2c |v3 [noauth_nopriv | auth_nopriv |

delete snmp group <groupname 32>

show snmp groups

create snmp host <ipaddr> {v1 |v2c | v3 [noauth_nopriv | auth_nopriv | auth_priv]}

delete snmp host <ipaddr>

show snmp host <ipaddr>

create trusted_host <ipaddr>

delete trusted_host <ipaddr>

show trusted_host <ipaddr>

enable snmp traps

auth_priv ]} {read_view <view_name 32> | write_view <view_name 32> | notify_view <view_name 32>}

<auth_string 32>

enable snmp authenticate_traps

show snmp traps

disable snmp traps

disable snmp authenticate_traps

config snmp system contact

config snmp system location

config snmp system name

enable rmon

disable rmon

Each command is listed, in detail, in the following sections.

<sw_contact>

<sw_location>

<sw_name>

create snmp user

Purpose Used to create a new SNMP user and adds the user to an SNMP

Page 37

create snmp user

group that is also created by this command.

Syntax

Description

Parameters

create snmp user <username 32> <groupname 32> {encrypted [by_password auth [md5 <auth_password 8-16 > | sha <auth_password 8-20 >] priv [none | des <priv_password 816> ]|by_key auth [md5 <auth_key 32-32>| sha <auth_key 4040>] priv [none | des <priv_key 32-32> ]]}

The

create snmp user

adds the user to an SNMP group that is also created by this command.

<username 32> − An alphanumeric name of up to 32 characters that will identify the new SNMP user.

<groupname 32> − An alphanumeric name of up to 32 characters that will identify the SNMP group the new SNMP user will be associated with.

by_password – Requires the SNMP user to enter a password for authentication and privacy. The password is defined by specifying the auth_password below. This method is recommended.

by_key - Requires the SNMP user to enter a encryption key for authentication and privacy. The key is defined by specifying the priv_password below. This method is not recommended.

Message integrity − ensures that packets have not been tampered with during transit.

command creates a new SNMP user and

Authentication − determines if an SNMP message is from a valid source.

Encryption − scrambles the contents of messages to prevent it being viewed by an unauthorized source.

encrypted – Specifies that the password will be in an encrypted format.

auth [md5|sha] – Initiate an authentication-level setting session.

− Specifies that the HMAC-MD5-96 authentication level will be

md5

used.

− Specifies that the HMAC-SHA-96 authentication level will be

sha

used.

<auth_password 8-20> − An alphanumeric sting of between 8 and 20 characters that will be used to authorize the agent to receive packets for the host.

des <priv_password 8-16> − An alphanumeric string of between 8 and 16 characters that will be used to encrypt the contents of messages the host sends to the agent.

Restrictions Only administrator-level users can issue this command.

Example usage:

Page 38

To create an SNMP user on the switch:

DES-3550:4#create snmp user dlink default encrypted by_password auth md5 auth_password priv none

Command: create snmp user dlink default encrypted by_password auth md5 auth_password priv none

Success.

DES-3550:4#

delete snmp user

Example usage:

To delete a previously entered SNMP user on the switch:

Purpose

Syntax delete snmp user <usmusername 32>

Description

Parameters

Restrictions

Used to remove an SNMP user from an SNMP group and also to

delete an entry from the USM User Table Settings

The

delete snmp user

SNMP group and then deletes the entry from the USM User Table

Settings.

<username 32> − An alphanumeric string of up to 32 characters that

identifies the SNMP user that will be deleted.

Only administrator-level users can issue this command.

DES-3550:4#delete snmp user dlink

Command: delete snmp user dlink

Success.

DES-3550:4#

command removes an SNMP user from its

show snmp user

Purpose Used to display information about each SNMP username in the

SNMP group username table.

Syntax

Description

Parameters None.

Restrictions Only administrator-level users can issue this command.

Example usage:

To display the SNMP users currently configured on the switch:

show snmp user

The

SNMP username in the SNMP group username table.

show snmp user

command displays information about each

Page 39

DES-3550:4#show snmp user

Command: show snmp user

Username Group Name Ver Auth Priv

--------------- -------------- ----- -------- -------

initial initial V3 None None

Total Entries: 1

DES-3550:4#

create snmp view

Purpose Used to assign views to community strings to limit which MIB objects

and SNMP manager can access.

Example usage:

To create an SNMP view:

Syntax

Description The

Parameters <view_name 32> − An alphanumeric string of up to 32 characters

Restrictions Only administrator-level users can issue this command.

DES-3550:4#create snmp view dlinkview 1.3.6 view_type included

Command: create snmp view dlinkview 1.3.6 view_type included

Success.

DES-3550:4#

create snmp view <view_name 32> <oid> view_type [included | excluded]

create snmp view

strings to limit which MIB objects an SNMP manager can access.

that identifies the SNMP view that will be created.

<oid> − 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.

command assigns views to community

delete snmp view

Purpose Used to remove an SNMP view entry previously created on the

switch.

Page 40

delete snmp view

Example usage:

To delete a previously configured SNMP view from the switch:

Syntax

Description

Parameters

Restrictions Only administrator-level users can issue this command.

delete snmp view <view_name 32> [all | <oid>]

The

delete snmp view

previously created on the switch.

<view_name 32> − 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.

<oid> − The object ID that identifies an object tree (MIB tree) that will be deleted from the switch.

DES-3550:4#delete snmp view dlinkview all

Command: delete snmp view dlinkview all

Success.

DES-3550:4#

command is used to remove an SNMP view

Example usage:

To display SNMP view configuration:

show snmp view

Purpose Used to display an SNMP view previously created on the switch.

Syntax

Description

Parameters

Restrictions None.

DES-3550:4#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

show snmp view {<view_name 32>}

The

show snmp view

created on the switch in the VACM View Table Settings.

<view_name 32> − An alphanumeric string of up to 32 characters

that identifies the SNMP view that will be displayed.

command displays an SNMP view previously

Page 41

restricted 1.3.6.1.6.3.10.2.1 Included restricted 1.3.6.1.6.3.11.2.1 Included restricted 1.3.6.1.6.3.15.1.1 Included CommunityView 1 Included CommunityView 1.3.6.1.6.3 Excluded CommunityView 1.3.6.1.6.3.1 Included

Total Entries: 11

DES-3550:4#

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.

Syntax

Description

Parameters

Read|write or read-only level permission for the MIB objects accessible to the SNMP community.

create snmp community <community_string 32> view <view_name 32> [read_only | read_write]

The

create snmp community

community string and to assign access-limiting characteristics to this community string.

<community_string 32> − An alphanumeric string of up to 32 characters that is used to identify members of an SNMP community. This string is used like a password to give remote SNMP managers access to MIB objects in the switch’s SNMP agent.

<view_name 32> − An alphanumeric string of up to 32 characters that is used to identify the group of MIB objects that a remote SNMP manager is allowed to access on the switch.

read_only − Specifies that SNMP community members using the community string created with this command can only read the contents of the MIBs on the switch.

read_write − Specifies that SNMP community members using the community string created with this command can read from and write to the contents of the MIBs on the switch.

command is used to create an SNMP

Restrictions Only administrator-level users can issue this command.

Example usage:

To create the SNMP community string “dlink:”

Page 42

DES-3550:4#create snmp community dlink view ReadView read_write

Command: create snmp community dlink view ReadView read_write

Success.

delete snmp community

Purpose Used to remove a specific SNMP community string from the switch.

Example usage:

To delete the SNMP community string “dlink:”

Syntax

Description

Parameters

Restrictions Only administrator-level users can issue this command.

delete snmp community <community_string 32>

The

delete snmp community

previously defined SNMP community string from the switch.

<community_string 32> − An alphanumeric string of up to 32

characters that is used to identify members of an SNMP community.

This string is used like a password to give remote SNMP managers

access to MIB objects in the switch’s SNMP agent.

DES-3550:4#delete snmp community dlink

Command: delete snmp community dlink

Success.

DES-3550:4#

command is used to remove a

show snmp community

Purpose Used to display SNMP community strings configured on the switch.

Syntax

Description

Parameters

Restrictions None.

Example usage:

To display the currently entered SNMP community strings:

show snmp community {<community_string 32>}

The

community strings that are configured on the switch.

<community_string 32> − An alphanumeric string of up to 32

characters that is used to identify members of an SNMP community.

This string is used like a password to give remote SNMP managers

access to MIB objects in the switch’s SNMP agent.

show snmp community

command is used to display SNMP

Page 43

DES-3550:4#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

DES-3550:4#

config snmp engineID

Purpose Used to configure a name for the SNMP engine on the switch.

Example usage:

To give the SNMP agent on the switch the name “0035636666”

Syntax

Description

Parameters

Restrictions Only administrator-level users can issue this command.

config snmp engineID <snmp_engineID>

The

config snmp engineID

SNMP engine on the switch.

<snmp_engineID> − An alphanumeric string that will be used to identify the SNMP engine on the switch.

DES-3550:4#config snmp 0035636666

Command: config snmp engineID 0035636666

Success.

DES-3550:4#

command configures a name for the

show snmp engineID

Purpose Used to display the identification of the SNMP engine on the switch.

Syntax

Description

Parameters None.

show snmp engineID

The

show snmp engineID

the SNMP engine on the switch.

command displays the identification of

Page 44

Example usage:

To display the current name of the SNMP engine on the switch:

create snmp group

Purpose Used to create a new SNMP group, or a table that maps SNMP users

show snmp engineID

Restrictions None.

DES-3550:4#show snmp engineID

Command: show snmp engineID

SNMP Engine ID : 0035636666

DES-3550:4#

to SNMP views. This will set then entry in the VACM Access Table Settings.

Syntax

Description

Parameters

create snmp group <groupname 32> [v1|v2c|v3 [noauth_nopriv | auth_nopriv | auth_priv]] {read_view <view_name 32> | write_view <view_name 32> | notify_view <view_name 32>}

The

create snmp group

table that maps SNMP users to SNMP views.

<groupname 32> − An alphanumeric name of up to 32 characters that will identify the SNMP group the new SNMP user will be associated with.

v1 – Specifies that SNMP version 1 will be used. The Simple Network Management Protocol (SNMP), version 1, is a network management protocol that provides a means to monitor and control network devices.

v2c – Specifies that SNMP version 2c will be used. The SNMP v2c supports both centralized and distributed network management strategies. It includes improvements in the Structure of Management Information (SMI) and adds some security features.

v3 – Specifies that the SNMP version 3 will be used. SNMP v3 provides secure access to devices through a combination of authentication and encrypting packets over the network. SNMP v3 adds:

Message integrity − ensures that packets have not been tampered with during transit.

command creates a new SNMP group, or a

Authentication − determines if an SNMP message is from a valid source.

Encryption − scrambles the contents of messages to prevent it being viewed by an unauthorized source.

noauth_nopriv − Specifies that there will be no authorization and no encryption of packets sent between the switch and a remote SNMP

Page 45

create snmp group

manager.

auth_nopriv − Specifies that authorization will be required, but there will be no encryption of packets sent between the switch and a remote SNMP manager.

auth_priv − Specifies that authorization will be required, and that packets sent between the switch and a remote SNMP manger will be encrypted.

read_view – Specifies that the SNMP group being created can request SNMP messages.

write_view – Specifies that the SNMP group being created has write privileges.

<view_name 32> − An alphanumeric string of up to 32 characters that is used to identify the group of MIB objects that a remote SNMP manager is allowed to access on the switch.

notify_view − Specifies that the SNMP group being created can receive SNMP trap messages generated by the switch’s SNMP agent.

Restrictions Only administrator-level users can issue this command.

Example usage:

To create an SNMP group named “sg1:”

DES-3550:4#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-3550:4#

delete snmp group

Purpose Used to remove an SNMP group from the switch.

Syntax

Description

delete snmp group <groupname 32>

The

delete snmp group

group from the switch.

command is used to remove an SNMP

Parameters

Restrictions Only administrator-level users can issue this command.

Example usage:

<groupname 32> − An alphanumeric name of up to 32 characters that will identify the SNMP group the new SNMP user will be associated with.

Page 46

To delete the SNMP group named “sg1”.

DES-3550:4#delete snmp group sg1

Command: delete snmp group sg1

Success.

DES-3550:4#

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 are also displayed.

Example usage:

To display the currently configured SNMP groups on the switch:

Syntax

Description

Parameters None.

Restrictions None.

DES-3550:4#show snmp groups Command: show snmp groups

Vacm Access Table Settings

Group Name : Group3 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Security Model : SNMPv3 Security Level : NoAuthNoPriv

Group Name : Group4 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Security Model : SNMPv3 Security Level : authNoPriv

Group Name : Group5 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Security Model : SNMPv3 Security Level : authNoPriv

Group Name : Group6 ReadView Name : ReadView

show snmp groups

The

show snmp groups

SNMP groups currently configured on the switch. The security

model, level, and status of each group are also displayed.

command displays the group-names of

Page 47

WriteView Name : WriteView Notify View Name : NotifyView Security Model : SNMPv3 Security Level : authPriv

Group Name : Group7 ReadView Name : ReadView WriteView Name : WriteView Notify View Name : NotifyView Security Model : SNMPv3 Security Level : authPriv

Group Name : initial ReadView Name : restricted WriteView Name : Notify View Name : restricted Security Model : SNMPv3 Security Level : NoAuthNoPriv

Group Name : ReadGroup ReadView Name : CommunityView WriteView Name : Notify View Name : CommunityView Security Model : SNMPv1 Security Level : NoAuthNoPriv

Group Name : ReadGroup ReadView Name : CommunityView WriteView Name : Notify View Name : CommunityView Security Model : SNMPv2 Security Level : NoAuthNoPriv

Group Name : WriteGroup ReadView Name : CommunityView WriteView Name : CommunityView Notify View Name : CommunityView Security Model : SNMPv1 Security Level : NoAuthNoPriv

Group Name : WriteGroup ReadView Name : CommunityView WriteView Name : CommunityView Notify View Name : CommunityView Security Model : SNMPv2 Security Level : NoAuthNoPriv

Total Entries: 10

DES-3550:4#

create snmp host

Purpose Used to create a recipient of SNMP traps generated by the switch’s

Syntax

SNMP agent.

create snmp host <ipaddr> [v1 | v2c | v3 [noauth_nopriv |

Page 48

create snmp host

auth_nopriv | auth_priv] <auth_string 32>]

Description

Parameters

The

create snmp host

generated by the switch’s SNMP agent.

<ipaddr> − The IP address of the remote management station that

will serve as the SNMP host for the switch.

v1 – Specifies that SNMP version 1 will be used. The Simple

Network Management Protocol (SNMP), version 1, is a network

management protocol that provides a means to monitor and control

network devices.

v2c – Specifies that SNMP version 2c will be used. The SNMP v2c

supports both centralized and distributed network management

strategies. It includes improvements in the Structure of

Management Information (SMI) and adds some security features.

v3 – Specifies that the SNMP version 3 will be used. SNMP v3

provides secure access to devices through a combination of

authentication and encrypting packets over the network. SNMP v3

adds:

Message integrity − ensures that packets have not been tampered

with during transit.

Authentication − determines if an SNMP message is from a valid

source.

command creates a recipient of SNMP traps

Example usage:

To create an SNMP host to receive SNMP messages:

Encryption − scrambles the contents of messages to prevent it being

viewed by an unauthorized source.

noauth_nopriv − Specifies that there will be no authorization and no

encryption of packets sent between the switch and a remote SNMP

manager.

auth_nopriv − Specifies that authorization will be required, but there

will be no encryption of packets sent between the switch and a

remote SNMP manager.

auth_priv − Specifies that authorization will be required, and that

packets sent between the switch and a remote SNMP manger will

be encrypted.

<auth_sting 32> − An alphanumeric string used to authorize a

remote SNMP manager to access the switch’s SNMP agent.

Restrictions Only administrator-level users can issue this command.

Page 49

DES-3550:4#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-3550:4#

delete snmp host

Purpose Used to remove a recipient of SNMP traps generated by the switch’s

SNMP agent.

Example usage:

To delete an SNMP host entry:

Syntax

Description

Parameters

Restrictions Only administrator-level users can issue this command.

DES-3550:4#delete snmp host 10.48.74.100

Command: delete snmp host 10.48.74.100

Success.

DES-3550:4#

delete snmp host <ipaddr>

The

delete snmp host

generated by the switch’s SNMP agent.

<ipaddr> − The IP address of a remote SNMP manager that will receive SNMP traps generated by the switch’s SNMP agent.

command deletes a recipient of SNMP traps

show snmp host

Purpose Used to display the recipient of SNMP traps generated by the

switch’s SNMP agent.

Syntax

Description

Parameters

Restrictions None.

Example usage:

To display the currently configured SNMP hosts on the switch:

show snmp host {<ipaddr>}

The

show snmp host

and configuration information of remote SNMP managers that are designated as recipients of SNMP traps that are generated by the switch’s SNMP agent.

<ipaddr> − The IP address of a remote SNMP manager that will receive SNMP traps generated by the switch’s SNMP agent.

command is used to display the IP addresses

Page 50

DES-3550:4#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-3550:4#

create trusted_host

Purpose Used to create the trusted host.

Example usage:

To create the trusted host:

Syntax

Description

Parameters

Restrictions Only administrator-level users can issue this command.

DES-3550:4#create trusted_host 10.48.74.121

Command: create trusted_host 10.48.74.121

Success.

DES-3550:4#

create trusted_host <ipaddr>

The

create trusted_host

switch allows you to specify up to four IP addresses that are allowed

to manage the switch via in-band SNMP or TELNET based

management software. These IP addresses must be members of

the Management VLAN. If no IP addresses are specified, then there

is nothing to prevent any IP address from accessing the switch,

provided the user knows the Username and Password.

<ipaddr> − The IP address of the trusted host.

command creates the trusted host. The

show trusted_host

Purpose Used to display a list of trusted hosts entered on the switch using the

create trusted_host

Syntax

Description This command is used to display a list of trusted hosts entered on

show trusted_host <ipaddr>

command above.

Page 51

show trusted_host

the switch using the

create trusted_host

command above.

Parameters

Restrictions none.

Example Usage:

To display the list of trust hosts:

delete trusted_host

<ipaddr> − The IP address of the trusted host.

DES-3550:4#show trusted_host

Command: show trusted_host

Management Stations

IP Address

-----------------------

10.53.13.94

Total Entries: 1

DES-3550:4#

Purpose Used to delete a trusted host entry made using the create

Syntax

Description This command is used to delete a trusted host entry made using the

Parameters

Restrictions Only administrator-level users can issue this command.

Example Usage:

To delete a trusted host with an IP address 10.48.74.121:

enable snmp traps

trusted_host command above.

delete trusted _host <ipaddr>

create trusted_host command above.

<ipaddr> − The IP address of the trusted host.

DES-3550:4#delete trusted_host 10.48.74.121

Command: delete trusted_host 10.48.74.121

Success.

DES-3550:4#

Purpose Used to enable SNMP trap support.

Page 52

enable snmp traps

Syntax

Description The enable snmp traps command is used to enable SNMP trap

Parameters none.

Restrictions Only administrator-level users can issue this command.

Example usage:

To enable SNMP trap support on the switch:

DES-3550:4#enable snmp traps

Command: enable snmp traps

Success.

DES-3550:4#

enable snmp traps

support on the switch.

enable snmp authenticate_traps

Purpose Used to enable SNMP authentication trap support.

Syntax

Description This command is used to enable SNMP authentication trap support

Parameters none.

Restrictions Only administrator-level users can issue this command.

Example Usage:

To turn on SNMP authentication trap support:

show snmp traps

Purpose Used to show SNMP trap support on the switch .

enable snmp authenticate_traps

on the Switch.

DES-3550:4#enable snmp authenticate_traps

Command: enable snmp authenticate_traps

Success.

DES-3550:4#

Syntax

Description This command is used to view the SNMP trap support status

show snmp traps

Page 53

show snmp traps

currently configured on the Switch.

Parameters none.

Restrictions Only administrator-level users can issue this command.

Example usage:

To view the current SNMP trap support:

DES-3550:4#show snmp traps

Command: show snmp traps

SNMP Traps : Enabled

Authenticate Traps : Enabled

DES-3550:4#

disable snmp traps

Example Usage:

To prevent SNMP traps from being sent from the Switch:

disable snmp authenticate_traps

Purpose Used to disable SNMP trap support on the switch.

Syntax

Description This command is used to disable SNMP trap support on the Switch.

Parameters none.

Restrictions Only administrator-level users can issue this command.

DES-3550:4#disable snmp traps

Command: disable snmp traps

Success.

DES-3550:4#

disable snmp traps

Purpose Used to disable SNMP authentication trap support.

Syntax

Description This command is used to disable SNMP authentication support on

disable snmp authenticate_traps

the Switch.

Page 54

disable snmp authenticate_traps

Parameters none.

Restrictions Only administrator-level users can issue this command.

Example Usage:

To disable the SNMP authentication trap support:

config snmp system_contact

Purpose Used to enter the name of a contact person who is responsible for

DES-3550:4#disable snmp authenticate_traps

Command: disable snmp authenticate_traps

Success.

DES-3550:4#

the switch.

Syntax

Description The config snmp system_contact command is used to enter the

Parameters <sw_contact> - A maximum of 255 characters is allowed. A NULL

Restrictions Only administrator-level users can issue this command.

Example usage:

To configure the switch contact to “

DES-3550:4#config snmp system_contact MIS Department II

Command: config snmp system_contact MIS Department II

Success.

DES-3550:4#

config snmp system_contact{<sw_contact>}

name and/or other information to identify a contact person who is

responsible for the switch. A maximum of 255 character can be

used.

string is accepted if there is no contact.

MIS Department II

”:

config snmp system_location

Purpose Used to enter a description of the location of the switch.

Syntax

Description The config snmp system_location command is used to enter a

config snmp system_location {<sw_location>}

description of the location of the switch. A maximum of 255

Page 55

config snmp system_location

Parameters <sw_location> - A maximum of 255 characters is allowed. A NULL

Restrictions Only administrator-level users can issue this command.

Example usage:

characters can be used.

string is accepted if there is no location desired.

To configure the switch location for “

DES-3550:4#config snmp system_location HQ 5F

Command: config snmp system_location HQ 5F

Success.

DES-3550:4#

HQ 5F

”:

config snmp system_name

Purpose Used to configure the name for the switch.

Syntax

Description The config snmp system_name command configures the name of

Parameters <sw_name> - A maximum of 255 characters is allowed. A NULL

Restrictions Only administrator-level users can issue this command.

config snmp system_name {<sw_name>}

the switch.

string is accepted if no name is desired.

Example usage:

To configure the switch name for “

DES-3550:4#config snmp system_name DES-3550 Switch

Command: config snmp system_name DES-3550 Switch

Success.

DES-3550:4#

enable rmon

Purpose Used to enable RMON on the switch.

Syntax

enable rmon

DES-3550 Switch

”:

Page 56

enable rmon

Description This command is used, in conjunction with the disable rmon

Parameters none.

Restrictions Only administrator-level users can issue this command.

Example Usage:

command below, to enable and disable remote monitoring (RMON)

on the switch.

To enable RMON:

disable rmon

Purpose Used to disable RMON on the switch.

Syntax

Description This command is used, in conjunction with the enable rmon

Parameters none.

Restrictions Only administrator-level users can issue this command.

DES-3550:4#enable rmon

Command: enable rmon

Success.

DES-3550:4#

disable rmon

command above, to enable and disable remote monitoring (RMON)

on the switch.

Example Usage:

To disable RMON:

DES-3550:4#disable rmon

Command: disable rmon

Success.

DES-3550:4#

Page 57

SWITCH UTILITY 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 <ipaddr> <path_filename 64> {section_id <int 1-2>}

configuration <ipaddr> <path_filename 64> {increment} ]

config firmware section_id <value 1-2> [delete | boot_up]

show firmware_information

upload [ configuration | log ] <ipaddr> <path_filename 64>

ping <ipaddr> {times <value 1-255>} {timeout <sec 1-99>}

Each command is listed, in detail, in the following sections.

download

Purpose Used to download and install new firmware or a switch configuration

file from a TFTP server.

Syntax

Description This command is used to download a new firmware or a switch

Parameters

download[ firmware <ipaddr> <path_filename 64> {section_id <int 1-2>} configuration <ipaddr> <path_filename 64> {increment} ]

configuration file from a TFTP server.

firmware − Download and install new firmware on the switch from a TFTP server.

configuration − Download a switch configuration file from a TFTP server.

<ipaddr> − The IP address of the TFTP server.

Restrictions The TFTP server must be on the same IP subnet as the switch. Only

Example usage:

<path_filename> − The DOS path and filename of the firmware or switch configuration file on the TFTP server. For example, C:\3550.had.

section_id <int 1-2> - Specify the working section id. The Switch can hold two firmware versions for the user to select from, which are specified by section id.

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.

administrator-level users can issue this command.

Page 58

To download a configuration file:

DES-3550:4#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-3550:4#

config firmware

Purpose Used to configure the firmware section as a boot up section, or to

delete the firmware section

Syntax

Description This command is used to configure the firmware section. The user

Parameters section_id – Specifies the working section. The Switch can hold two

Restrictions Only administrator-level users can issue this command.

Example usage:

To configure firmware section 1 as a boot up section:

DES-3550:4# config firmware section_id 1 boot_up

Command: config firmware section_id 1 boot_up

Success.

DES-3550:4#

config firmware section_id <int 1-2> [delete | boot_up]

may choose to remove the firmware section or use it as a boot up

section.

firmware versions for the user to select from, which are specified by

section id.

delete – Entering this parameter will delete the specified firmware

section.

boot_up – Entering this parameter will specify the firmware section id

as a boot up section.

show firmware information

Purpose Used to display the firmware section information.

Syntax

Description This command is used to display the firmware section information

Parameters None.

show firmware information

Page 59

show firmware information

Restrictions None.

Example usage:

To display the current firmware information on the switch:

DES-3550:4#show firmware information

Command: show firmware information

ID Version Size(B) Update Time From User

-- -------- ------- ------------------- ------------------ ---------------

1 1.00-B00 1360471 00000 days 00:00:00 Serial Port (PROM) Unknown

*2 1.00-B02 2052372 00000 days 00:00:56 10.53.13.94 Anonymous

'*' means boot up section

(T) means firmware update thru TELNET

(S) means firmware update thru SNMP

(W) means firmware update thru WEB

Free space: 3145728 bytes

DES-3550:4#

Example usage:

upload

Purpose Used to upload the current switch settings or the switch history log to

a TFTP.

Syntax

Description This command is used to upload either the switch’s current settings

Parameters

Restrictions The TFTP server must be on the same IP subnet as the switch.

upload [ configuration | log ] <ipaddr> <path_filename 64>

or the switch’s history log to a TFTP server.

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.

<ipaddr> − The IP address of the TFTP server. The TFTP server must be on the same IP subnet as the switch.

<path_filename> − Specifies the location of the switch configuration file on the TFTP server. This file will be replaced by the uploaded file from the switch.

Only administrator-level users can issue this command.

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To upload a configuration file:

DES-3550:4#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-3550:4#

ping

Purpose Used to test the connectivity between network devices.

Example usage:

To ping a device with the IP address 10.48.74.121 four times:

Syntax

Description The ping command sends Internet Control Message Protocol (ICMP)

Parameters <ipaddr> - Specifies the IP address of the host.

Restrictions None.

DES-3550:4#ping 10.48.74.121 times 4

Command: ping 10.48.74.121

Reply from 10.48.74.121, time<10ms

Ping statistics for 10.48.74.121

Packets: Sent =4, Received =4, Lost =0

DES-3550:4#

ping <ipaddr> {times <value 1-255>} {timeout <sec 1-99>}

echo messages to a remote IP address. The remote IP address will

then “echo” or return the message. This is used to confirm

connectivity between the switch and the remote device.

times - The number of individual ICMP echo messages to be sent.

A value of 0 will send an infinite ICMP echo messages. The

maximum value is 255. The default is 0.

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

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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 <portlist>

show error ports <portlist>

show utilitzation [cpu | ports {<portlist>}]

clear counters ports <portlist>

clear log

show log index <value_list>

enable syslog

disable syslog

show syslog

create syslog host <index 1-4> ipaddress <ipaddr> {severity

config syslog host

delete syslog host

show syslog host

Each command is listed, in detail, in the following sections.

[all | <index 1-4>] {severity [informational | warning |all] |facility [local0|local1|local2|local3|local4|local5|local6|local7] |udp_port <udp_port_number> | ipaddress <ipaddr> | state [enable | disable]}

<index 1-4> all

show packet ports

Purpose Used to display statistics about the packets sent

and received by the switch.

Syntax

Description This command is used to display statistics about

Parameters

show packet ports <portlist>

packets sent and received by ports specified in the port list.

<portlist> − specifies a port or range of ports to be displayed.

Restrictions None.

Example usage:

To display the packets analysis for port 7 of module 2:

Page 62

DES-3550:4#show packet port 2

Port number : 2

Frame Size Frame Counts Frame/sec Frame Type Total Total/sec

------------ ------------ ---------- ---------- ------- ---------

64 3275 10 RX Bytes 408973 1657

65-127 755 10 RX Frames 395 19

128-255 316 1

256-511 145 0 TX Bytes 7918 178

512-1023 15 0 TX Frames 111 2

1024-1518 0 0

Unicast RX 152 1

Multicast RX 557 2

Broadcast RX 3686 16

DES-3550:4#

show error ports

Example usage:

To display the errors of port 3:

Purpose Used to display the error statistics for a range of ports.

Syntax

Description This command will display all of the packet error statistics collected

Parameters

Restrictions None.

DES-3550:4#show errors port 3

RX Frames TX Frames

--------------- ----------------

CRC Error 19 Excessive Deferral 0

Undersize 0 CRC Error 0

Oversize 0 Late Collision 0

Fragment 0 Excessive Collision 0

Jabber 11 Single Collision 0

Drop Pkts 20837 Collision 0

DES-3550:4#

show error ports <portlist>

and logged by the switch for a given port list.

<portlist> − specifies a port or range of ports to be displayed.

Page 63

show utilization

Purpose Used to display real-time port and cpu utilization statistics.

Example usage:

To display the port utilization statistics:

Syntax

Description This command will display the real-time port and cpu utilization

Parameters cpu – Entering this parameter will display the current cpu utilization

Restrictions None.

DES-3550:4#show utilization ports

Command: show utilization ports

Port TX/sec RX/sec Util Port TX/sec RX/sec Util

------ ---------- ---------- ---- ------ ---------- ---------- ----

1 0 0 0 22 0 0 0

2 0 0 0 23 0 0 0

3 0 0 0 24 0 0 0

4 0 0 0 25 0 26 1

5 0 0 0 26 0 0 0

6 0 0 0 27 0 0 0

7 0 0 0 28 0 0 0

8 0 0 0 29 0 0 0

9 0 0 0 30 0 0 0

10 0 0 0 31 0 0 0

11 0 0 0 32 0 0 0

12 0 0 0 33 0 0 0

13 0 0 0 34 0 0 0

14 0 0 0 35 0 0 0

15 0 0 0 36 0 0 0

16 0 0 0 37 0 0 0

17 0 0 0 38 0 0 0

18 0 0 0 39 0 0 0

19 0 0 0 40 0 0 0

20 0 0 0 41 0 0 0

21 0 0 0 42 0 0 0

CTRL+C ESC q Quit Space n Next Page p Previous Page r Refresh

show utilization [cpu | ports {<portlist>}]

statistics for the switch.

of the switch.

ports - Entering this parameter will display the current port utilization of the switch.

<portlist> Specifies a port or range of ports to be displayed.



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To display the current cpu utilization:

DES-3550:4#show utilization cpu

Command: show utilization cpu

CPU utilization :

-------------------------------------------------------------------------------

Five seconds - 15% One minute - 25% Five minutes - 14%

DES-3550:4#

clear counters

Purpose Used to clear the switch’s statistics counters.

Example usage:

To clear the counters:

Syntax

Description This command will clear the counters used by the switch to compile

Parameters

Restrictions Only administrator-level users can issue this command.

DES-3550:4#clear counters ports 2-9

Command: clear counters ports 2-9

Success.

DES-3550:4#

clear counters {ports <portlist>}

statistics.

<portlist> − specifies a port or range of ports to be displayed.

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:

Page 65

DES-3550:4#clear log

Command: clear log

Success.

DES-3550:4#

show log

Purpose Used to display the switch history log.

Syntax

Description This command will display the contents of the switch’s history log.

Parameters

Restrictions None.

Example usage:

To display the switch history log:

DES-3550:4#show log index 5

Command: show log index 5

Index Time Log Text

----- ------------------- ----------------------------------------------------

5 00000 days 00:01:09 Successful login through Console (Username: Anonymous)

4 00000 days 00:00:14 System started up

3 00000 days 00:00:06 Port 1 link up, 100Mbps FULL duplex

2 00000 days 00:00:01 Spanning Tree Protocol is disabled

1 00000 days 00:06:31 Configuration saved to flash (Username: Anonymous)

DES-3550:4#

show log {index <value>}

index <value> − This command will display the history log, beginning at 1 and ending at the value specified by the user in the <value> field.

If no parameter is specified, all history log entries will be displayed.

enable syslog

Purpose Used to enable the system log to be sent to a remote host.

Syntax

Description

Parameters None.

Restrictions Only administrator-level users can issue this command.

enable syslog

The

enable syslog

remote host.

command enables the system log to be sent to a

Page 66

Example usage:

To the syslog function on the switch:

DES-3550:4#enable syslog

Command: enable syslog

Success.

DES-3550:4#

disable syslog

Purpose Used to enable the system log to be sent to a remote host.

Example usage:

To disable the syslog function on the switch:

Syntax

Description

Parameters None.

Restrictions Only administrator-level users can issue this command.

disable syslog

The

disable syslog

a remote host.

DES-3550:4#disable syslog

Command: disable syslog

Success.

DES-3550:4#

command enables the system log to be sent to

show syslog

Purpose Used to display the syslog protocol status as enabled or disabled.

Syntax

Description

Parameters None.

Restrictions None.

Example usage:

To display the current status of the syslog function:

show syslog

The

or disabled.

show syslog

command displays the syslog status as enabled

Page 67

DES-3550:4#show syslog

Command: show syslog

Syslog Global State: Enabled

DES-3550:4#

create syslog host

Purpose Used to create a new syslog host.

Syntax

Description

Parameters

create syslog host <index 1-4> ipaddress <ipaddr> {severity [informational|warning|all]| facility[local0|local1|local2|local3| local4|local5|local6|local7] |udp_port<udp_port_number>| state[enable|disable]

The

create syslog host

host.

<index 1-4> − Specifies that the command will be applied to an index of hosts. There are four available indexes, numbered 1 through 4.

ipaddress <ipaddr> − Specifies the IP address of the remote host where syslog messages will be sent.

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

command is used to create a new syslog

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.

Page 68

create syslog host

facility − Some of the operating system daemons and processes

have been assigned Facility values. Processes and daemons that

have not been explicitly assigned a Facility may use any of the"local

use" facilities or they may use the "user-level" Facility. Those

Facilities that have been designated are shown in the following: Bold

font indicates the facility values that the switch currently supports.

Numerical Facility

Code

0 kernel messages

1 user-level messages

2 mail system

3 system daemons

4 security|authorization messages

5 messages generated internally by syslog

6 line printer subsystem

7 network news subsystem

8 UUCP subsystem

9 clock daemon

10 security|authorization messages

11 FTP daemon

12 NTP subsystem

13 log audit

14 log alert

15 clock daemon

16 local use 0 (local0)

17 local use 1 (local1)

18 local use 2 (local2)

19 local use 3 (local3)

20 local use 4 (local4)

21 local use 5 (local5)

22 local use 6 (local6)

23 local use 7 (local7)

local0 − Specifies that local use 0 messages will be sent to the

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create syslog host

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.

Example usage:

To create syslog host:

udp_port <udp_port_number> − Specifies the UDP port number that the syslog protocol will use to send messages to the remote host.

state [enable | disable] − Allows the sending of syslog messages to the remote host, specified above, to be enabled and disabled.

Restrictions Only administrator-level users can issue this command.

DES-3550:4#create syslog host 1 severity all facility local0

Command: create syslog host 1 severity all facility local0

Success.

DES-3550:4#

config syslog host

Purpose

Used to configure the syslog protocol to send system log data to a remote host.

Syntax

Description

Parameters

config syslog host [all | <index 1-4>] {severity [informational | warning | all] | facility [local0|local1|local2|local3| local4|local5|local6|local7] | udp_port<udp_port_number> | ipaddress <ipaddr> | state [enable | disable]

The

config syslog host

protocol to send system log information to a remote host.

all − Specifies that the command will be applied to all hosts.

command is used to configure the syslog

Page 70

config syslog host

<index 1-4> − Specifies that the command will be applied to an index

of hosts. There are four available indexes, numbered 1 through 4.

severity − Severity level indicator. These are described in the

following:

Bold font indicates that the corresponding severity level is currently

supported on the switch.

Numerical Severity

Code

0 Emergency: system is unusable

1 Alert: action must be taken immediately

2 Critical: critical conditions

3 Error: error conditions

4 Warning: warning conditions

5 Notice: normal but significant condition

6 Informational: informational messages

7 Debug: debug-level messages

informational − Specifies that informational messages will be sent to

the remote host. This corresponds to number 6 from the list above.

warning − Specifies that warning messages will be sent to the

remote 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

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config syslog host

11 FTP daemon

12 NTP subsystem

13 log audit

14 log alert

15 clock daemon

16 local use 0 (local0)

17 local use 1 (local1)

18 local use 2 (local2)

19 local use 3 (local3)

20 local use 4 (local4)

21 local use 5 (local5)

22 local use 6 (local6)

23 local use 7 (local7)

local0 − Specifies that local use 0 messages will be sent to the remote host. This corresponds to number 16 from the list above.