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Contents

Chapter 1: Setting Up a Switch for the First Time

Before You Begin ........................................................................................................................................... 1-1

Connecting to the Switch ................................................................................................................................ 1-2

Downloading New Firmware ........................................................................................................................... 1-3

Deleting a Backup Image File .................................................................................................................. 1-5

Additional Configuration Tasks ....................................................................................................................... 1-5

Setting User Accounts and Passwords .................................................................................................... 1-5

Controlling In-band Access to the Switch ................................................................................................. 1-6

Changing SNMP Defaults ........................................................................................................................ 1-7

Saving the Configuration and Connecting Devices ........................................................................................ 1-7

Configuring a Stack of New Switches ............................................................................................................. 1-8

Where to Go Next ........................................................................................................................................... 1-9

Getting Help .................................................................................................................................................. 1-10

Downloading Firmware via the Serial Port ................................................................................................... 1-10

Chapter 2: Configuring Switches in a Stack

About Switch Operation in a Stack ................................................................................................................. 2-1

Stack Initialization .................................................................................................................................... 2-1

Configuration Management ...................................................................................................................... 2-2

Installing a New Stackable System of Up to Eight Units ................................................................................ 2-2

Installing Previously-Configured Systems in a Stack ..................................................................................... 2-3

Adding a New Unit to an Existing Stack ......................................................................................................... 2-3

Removing Units from an Existing Stack ......................................................................................................... 2-4

Stack Disruption Times ............................................................................................................................ 2-4

Creating a Virtual Switch Configuration .......................................................................................................... 2-4

Example ................................................................................................................................................... 2-5

Considerations About Using “clear config” in a Stack .................................................................................... 2-5

Configuring Standalone A4 Stack Ports ......................................................................................................... 2-6

When Uplink Ports are Configured as Ethernet Ports ........................................................................2-6

Chapter 3: CLI Basics

Switch Management Methods ........................................................................................................................ 3-1

Using the Command Line Interface ................................................................................................................ 3-1

Starting a CLI Session ............................................................................................................................. 3-1

Connecting Using the Console Port ...................................................................................................3-2

Connecting Using Telnet or SSH........................................................................................................3-2

Logging In ................................................................................................................................................ 3-3

Using a Default User Account ............................................................................................................3-3

Using an Administratively Configured User Account..........................................................................3-3

Clearing and Closing the CLI ................................................................................................................... 3-3

Navigating the Command Line Interface .................................................................................................. 3-3

Getting Help with CLI Syntax..............................................................................................................3-3

CLI Command Defaults Descriptions .................................................................................................3-3

CLI Command Modes.........................................................................................................................3-4

Performing Keyword Lookups ............................................................................................................3-4

Displaying Scrolling Screens ..............................................................................................................3-5

Abbreviating and Completing Commands..........................................................................................3-5

Basic Line Editing Commands............................................................................................................3-6

Configuring CLI Properties ............................................................................................................................. 3-6

Example CLI Properties Configuration ..................................................................................................... 3-7