Cabletron Systems 802.1Q manual Using this Guide, Structure of this Guide

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PREFACE

Welcome to the Cabletron Systems 802.1Q VLAN User’s Guide. This guide introduces and describes Cabletron Systems’ implementation of the IEEE 802.1Q standard for 802.1Q Virtual Local Area Network (VLAN) technology, and the VLAN Local Management screens used to configure Cabletron Systems products used in 802.1Q VLAN environments.

USING THIS GUIDE

This guide serves as a supplement to the Local Management chapter of the Cabletron Systems user’s guides for devices that support 802.1Q VLANs. Read Chapter 1 and Chapter 2 first to gain an understanding of VLANs, the associated terminology, and the process for configuring VLANs on a switch. Look at the examples in Chapter 4 to see how VLANs can be created and changed using the existing network infrastructure in a building and how the switch handles the frames while they make their way through the networks shown in the examples. Chapter 3 describes the VLAN Local Management screens and provides a quick walkthrough on how to use them to configure VLANs in a switch.

STRUCTURE OF THIS GUIDE

This guide is organized as follows:

Chapter 1, Virtual Local Area Networks, presents the basic concepts of VLANs, including their benefits and uses. This chapter also provides information about how to obtain additional help if needed.

Chapter 2, VLAN Operation, describes the operation of an 802.1Q VLAN, the steps necessary to prepare an 802.1Q VLAN aware switch for VLAN operation, and examines the operation of an 802.1Q VLAN switch.

Chapter 3, VLAN Configuration, describes how to set up the switch for local and remote management, shows the Local Management screens used in 802.1Q VLAN configuration and explains their use.

Chapter 4, Examples, offers examples of 802.1Q VLANs and explains how network transmissions are treated by the components of each VLAN.

802.1Q VLAN User’s Guide

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Contents 802.1Q Vlan User’s Guide Page 802.1Q Vlan User’s Guide 802.1Q Vlan User’s Guide Contents Contents Contents Contents 802.1Q Vlan User’s Guide Figures Tables Structure of this Guide Using this GuideDocument Conventions Related DocumentsDefining VLANs Chapter Virtual Local Area NetworksBuilding One Building Two Other Vlan Strategies Types of VLANs1 802.1Q VLANs SecureFast VLANsVlan Terms Benefits and RestrictionsData frame that does not have a Tag Header 1D Trunk Your email address Getting Help802.1Q Vlan User’s Guide Vlan Components DescriptionClassifying Frames to a Vlan Configuration Process1 Defining a Vlan Customizing the Vlan Forwarding List Vlan Switch OperationReceiving Frames from Vlan Ports Inside the SwitchKnown Unicasts Forwarding DecisionsBroadcasts, Multicasts, and Unknown Unicasts Garp Switch Operation Switch Without VLANs Managing the SwitchSwitch Management with VLANs Switch with VLANsManaging the Switch Preparing for Vlan Configuration Summary of Vlan Local ManagementWhen to Use 802.1Q Vlan Configuration Menu ScreenHow to Access Menu Definitions Device Vlan Configuration Screen Device Vlan Configuration ScreenField Definitions 1 Defining a Vlan Renaming a Vlan Changing the Vlan to FID AssociationDisabling VLANs Deleting a VlanEnabling VLANs Paging Through the Vlan List Changing the Forwarding ModePort Assignment Configuration Screen Port Assignment Configuration ScreenPort Mode Changing the Port ModeAssigning a Vlan ID Paging Through the Port List Port Filtering Configuration ScreenPort Filtering Configuration Screen Vlan Lists Displaying Vlan IDs Associated with a PortSelecting the Type of Filtering for a Port Vlan Forwarding Configuration Screen Vlan Forwarding Configuration ScreenFrame Format Viewing Current Vlan PortsDeleting Forwarding List Entries Paging Through Vlan Forwarding List EntriesAdding Forwarding List Entries Changing the Frame Format Protocol Vlan Configuration ScreenProtocol Vlan Configuration Screen Selectable Feature Status Ether type Assigning a Protocol Family to a Vlan IDProtocol Vlan Configuration Screen Displaying the Protocol Types on Current Ports 10 Protocol Ports Configuration Screen Protocol Ports Configuration ScreenDelete ALL Quick Vlan Walkthrough Adding/Deleting Ports Associated with a Vlan ID802.1Q Vlan User’s Guide Hybrid 12 Walkthrough Stage Two 13 Walkthrough Stage Three 14 Walkthrough Stage Four Quick Vlan Walkthrough 15 Final Walkthrough Stage Chapter Examples Example 1, Single Switch OperationSwitch Configured for VLANs Solving the ProblemFrame Handling Example 2, Vlans Across Multiple Switches Example 2, VLANs Across Multiple Switches Switch Example 2, VLANs Across Multiple Switches Bridge 1 Broadcasts Frames Transmitting to Switch Transmitting to Bridge Example 3, 1D Trunk Connection to 802.1Q Vlan NetworkExample 3, 1D Trunk Connection to 802.1Q Vlan Network Solving the Problem Frame Handling 226318 Switch 2 Forwards to 1Q Trunk Examples Example 4, Isolating Network Traffic According to Protocol 11 Example 4, Isolating Traffic According to Protocol Switch Examples Example 4, Isolating Network Traffic According to Protocol Examples 802.1Q Vlan User’s Guide Numerics IndexIndex-2 802.1Q Vlan User’s Guide 802.1Q Vlan User’s Guide Index-3 Index Index-4 802.1Q Vlan User’s Guide