Cabletron-systems 802.1Q Manual do Utilizador

9032599-02 802.1Q VLANUser’s Guide

802.1Q VLAN User’s Guide viii TABLES Table Page3-1 802.1Q VLAN Configuration Menu Screen Menu Items ... 3-73-2 Device VLAN Configuration Scree

802.1Q VLAN User’s Guide ix PREFACE Welcome to the Cabletron Systems 802.1Q VLAN User’s Guide . This guide introduces and describes Cabletron Syste

Prefacex 802.1Q VLAN User’s Guide RELATED DOCUMENTS Other Cabletron Systems documents that may be useful for understanding some of the concepts intro

802.1Q VLAN User’s Guide 1-1 CHAPTER 1VIRTUAL LOCAL AREA NETWORKS This chapter introduces the concepts of Virtual Local Area Networks (VLANs) and dis

Chapter 1: Virtual Local Area Networks 1-2 802.1Q VLAN User’s Guide Figure 1-1 Example of a VLAN In this example, the Sales and Finance workstations

Types of VLANs802.1Q VLAN User’s Guide 1-3 1.2 TYPES OF VLANs There are a number of different strategies for creating Virtual Local Area Networks, ea

Chapter 1: Virtual Local Area Networks 1-4 802.1Q VLAN User’s Guide 1.3 BENEFITS AND RESTRICTIONS The primary benefit of the 802.1Q VLAN technology i

VLAN Terms802.1Q VLAN User’s Guide 1-5 The configuration is accomplished using the Local Management VLAN Forwarding Configuration screen. By default a

Chapter 1: Virtual Local Area Networks 1-6 802.1Q VLAN User’s Guide 1D Trunk A connection from a switch that passes only untagged traffic. By default

Getting Help802.1Q VLAN User’s Guide 1-7 1.5 GETTING HELP For additional support related to this device or document, contact Cabletron Systems using

Chapter 1: Virtual Local Area Networks 1-8 802.1Q VLAN User’s Guide

802.1Q VLAN User’s Guide 2-1 CHAPTER 2VLAN OPERATION This chapter describes the operation of a VLAN switch and discusses the operations that a VLAN s

Chapter 2: VLAN Operation 2-2 802.1Q VLAN User’s Guide 2.3 CONFIGURATION PROCESS Before a VLAN can operate, steps must be performed to configure the

VLAN Switch Operation802.1Q VLAN User’s Guide 2-3 2.3.3 Customizing the VLAN Forwarding List Each port on a VLAN aware switch has a VLAN forwarding l

Chapter 2: VLAN Operation 2-4 802.1Q VLAN User’s Guide Figure 2-1 depicts the inside of a switch with six ports, numbered one through six. The switc

VLAN Switch Operation802.1Q VLAN User’s Guide 2-5The switch will now make a forwarding decision on the frame, as described in Section 2.4.2, Forwardin

Chapter 2: VLAN Operation2-6 802.1Q VLAN User’s GuideFor example, assume that a frame is received by the switch depicted in Figure 2-1. This frame is

802.1Q VLAN User’s Guide 3-1CHAPTER 3VLAN CONFIGURATIONThis chapter describes how to set up the switch for local or remote management, and the VLAN Lo

Chapter 3: VLAN Configuration3-2 802.1Q VLAN User’s Guide3.1.2 Switch with VLANsIf the switch is to be configured for multiple VLANs, it may be desirabl

Managing the Switch802.1Q VLAN User’s Guide 3-3b. Set the FID so the Management VLAN has its own number to make the VLAN secure. In this example, the

802.1Q VLAN User’s Guide i NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this docum

Chapter 3: VLAN Configuration3-4 802.1Q VLAN User’s Guide3.2 SUMMARY OF VLAN LOCAL MANAGEMENTThe VLAN configuration process is an extension of normal Lo

802.1Q VLAN Configuration Menu Screen802.1Q VLAN User’s Guide 3-53.3 802.1Q VLAN CONFIGURATION MENU SCREENWhen to UseTo select screens to assign switch

Chapter 3: VLAN Configuration3-6 802.1Q VLAN User’s GuideHow to AccessUse the arrow keys to highlight the 802.1Q VLAN CONFIGURATION MENU item from the

802.1Q VLAN Configuration Menu Screen802.1Q VLAN User’s Guide 3-7Menu DefinitionsTable 3-1 802.1Q VLAN Configuration Menu Screen Menu Items Menu Item Scr

Chapter 3: VLAN Configuration3-8 802.1Q VLAN User’s Guide3.4 DEVICE VLAN CONFIGURATION SCREENWhen to UseTo define the operating characteristics of the s

Device VLAN Configuration Screen802.1Q VLAN User’s Guide 3-9Field DefinitionsTable 3-2 Device VLAN Configuration Screen Field Definitions Use this field …

Chapter 3: VLAN Configuration3-10 802.1Q VLAN User’s Guide3.4.1 Defining a VLANTo define a VLAN, proceed as follows:1. Use the arrow keys to highlight th

Device VLAN Configuration Screen802.1Q VLAN User’s Guide 3-113.4.2 Changing the VLAN to FID AssociationTo change the association of a VLAN to a FID, pr

Chapter 3: VLAN Configuration3-12 802.1Q VLAN User’s Guide3.4.4 Deleting a VLANTo delete a VLAN from the current VLAN list, proceed as follows:1. Enter

Device VLAN Configuration Screen802.1Q VLAN User’s Guide 3-134. Press ENTER. The message “SAVED OK” displays.3.4.7 Changing the Forwarding ModeTo chang

Noticeii 802.1Q VLAN User’s Guide

Chapter 3: VLAN Configuration3-14 802.1Q VLAN User’s Guide3.5 PORT ASSIGNMENT CONFIGURATION SCREENWhen to UseTo select a mode of operation for each por

Port Assignment Configuration Screen802.1Q VLAN User’s Guide 3-15Field Definitions3.5.1 Changing the Port ModeTo change the operational mode of a port,

Chapter 3: VLAN Configuration3-16 802.1Q VLAN User’s Guide• 1Q TRUNK – This mode sets the port for transmitting to another 802.1Q aware device. In this

Port Filtering Configuration Screen802.1Q VLAN User’s Guide 3-173. When the desired VLAN ID is displayed, use the arrow keys to highlight the SAVE comm

Chapter 3: VLAN Configuration3-18 802.1Q VLAN User’s GuideHow to AccessUse the arrow keys to highlight the PORT FILTERING CONFIGURATION menu item on th

Port Filtering Configuration Screen802.1Q VLAN User’s Guide 3-19Field Definitions3.6.1 Displaying VLAN IDs Associated with a PortTo display the VLAN IDs

Chapter 3: VLAN Configuration3-20 802.1Q VLAN User’s Guide4. To display the next screen, use the arrow keys to highlight NEXT. Press ENTER to view the

VLAN Forwarding Configuration Screen802.1Q VLAN User’s Guide 3-213.7 VLAN FORWARDING CONFIGURATION SCREENWhen to UseTo perform the following functions:

Chapter 3: VLAN Configuration3-22 802.1Q VLAN User’s GuideField Definitions3.7.1 Viewing Current VLAN PortsTo display the VLAN Forwarding List for a par

VLAN Forwarding Configuration Screen802.1Q VLAN User’s Guide 3-233.7.2 Paging Through VLAN Forwarding List EntriesTo display additional entries in the

802.1Q VLAN User’s Guide iii CONTENTS Figures ...vii

Chapter 3: VLAN Configuration3-24 802.1Q VLAN User’s Guide2. Use the arrow keys to highlight the Port field. Step through the available ports on the mo

Protocol VLAN Configuration Screen802.1Q VLAN User’s Guide 3-25How to AccessUse the arrow keys to highlight the PROTOCOL VLAN CONFIGURATION menu item o

Chapter 3: VLAN Configuration3-26 802.1Q VLAN User’s GuideField DefinitionsTable 3-6 Protocol VLAN Configuration Screen Field Definitions Use this field …

Protocol VLAN Configuration Screen802.1Q VLAN User’s Guide 3-27Protocol Type (Selectable)Select one of the following protocol types: IP – pertains to a

Chapter 3: VLAN Configuration3-28 802.1Q VLAN User’s Guide3.8.1 Displaying the Current Protocol, VLAN ID, andPort AssignmentsIn some instances it may b

Protocol VLAN Configuration Screen802.1Q VLAN User’s Guide 3-291. Use the arrow keys to highlight the VLAN ID field at the bottom of the screen.2. Ente

Chapter 3: VLAN Configuration3-30 802.1Q VLAN User’s Guide7. If CUSTOM was selected in the Protocol Type field, use the arrow keys to highlight the Eth

Protocol Ports Configuration Screen802.1Q VLAN User’s Guide 3-313.9 PROTOCOL PORTS CONFIGURATION SCREENWhen to UseTo display the current ports and port

Chapter 3: VLAN Configuration3-32 802.1Q VLAN User’s GuideField DefinitionsTable 3-7 Protocol Ports Configuration Screen Field Definitions Use this field …

Quick VLAN Walkthrough802.1Q VLAN User’s Guide 3-333.9.1 Adding/Deleting Ports Associated with a VLAN IDTo add or delete ports from a VLAN, proceed as

Contentsiv 802.1Q VLAN User’s Guide CHAPTER 3 VLAN CONFIGURATION 3.1 Managing the Switch...

Chapter 3: VLAN Configuration3-34 802.1Q VLAN User’s Guide3. Use the arrow keys to highlight the VLAN ID field. Assign a number to a new VLAN by typing

Quick VLAN Walkthrough802.1Q VLAN User’s Guide 3-35Figure 3-11 Walkthrough Stage OneIt is now time to assign a port to this new VLAN.9. Use the arrow

Chapter 3: VLAN Configuration3-36 802.1Q VLAN User’s Guide11. Use the SPACE bar to step sequentially through the previously configured VLAN ID numbers.

Quick VLAN Walkthrough802.1Q VLAN User’s Guide 3-3713. Use the arrow keys to highlight the Port Mode field for port 10. Use the SPACE bar or BACKSPACE

Chapter 3: VLAN Configuration3-38 802.1Q VLAN User’s Guide15. On the 802.1Q VLAN Main Menu screen, use the arrow keys to highlight the DEVICE VLAN CONF

Quick VLAN Walkthrough802.1Q VLAN User’s Guide 3-39The Port VLAN List of any port on the device can also be checked at any time using the Port Filteri

Chapter 3: VLAN Configuration3-40 802.1Q VLAN User’s GuideFigure 3-15 Final Walkthrough Stage This effectively completes the displaying of the Port VLA

802.1Q VLAN User’s Guide 4-1CHAPTER 4EXAMPLESThis chapter provides examples of how VLAN aware SmartSwitches can be configured to group users at the por

Chapter 4: Examples4-2 802.1Q VLAN User’s Guide4.1.1 Solving the ProblemTo set up this switch, users will be assigned to two new VLANs, red stations t

Example 1, Single Switch Operation802.1Q VLAN User’s Guide 4-3The switch will now classify each frame received as belonging to either the Red or Blue

Contents802.1Q VLAN User’s Guide v CHAPTER 4 EXAMPLES 4.1 Example 1, Single Switch Operation ... 4-14.1.1 Sol

Chapter 4: Examples4-4 802.1Q VLAN User’s Guide6. The switch examines its VLAN configuration information and determines that the frame for Red VLAN is

Example 2, VLANs Across Multiple Switches802.1Q VLAN User’s Guide 4-5Figure 4-3 Example 2, VLANs Across Multiple Switches4.2.1 Solving the ProblemTo s

Chapter 4: Examples4-6 802.1Q VLAN User’s GuideSwitch 4Switch 4 is set as follows:1. Two VLANs are added to the list of VLANs in the Device/VLAN Confi

Example 2, VLANs Across Multiple Switches802.1Q VLAN User’s Guide 4-7Switch 2Switch 2 is set as follows:1. Two VLANs are added to the list of VLANs us

Chapter 4: Examples4-8 802.1Q VLAN User’s Guide4.2.2 Frame HandlingThe following describes how, when User A attempts to log on to the File Server on B

Example 2, VLANs Across Multiple Switches802.1Q VLAN User’s Guide 4-9The VLAN Tag Header is inserted because Switch 4, Port 4 is designated as an 802.

Chapter 4: Examples4-10 802.1Q VLAN User’s GuideFigure 4-6 Transmitting to Bridge 44. The File Server responds with a unicast frame to User A. All swi

Example 3, 1D Trunk Connection to 802.1Q VLAN Network802.1Q VLAN User’s Guide 4-11As illustrated in Figure 4-7, a third group of stations, the Green I

Chapter 4: Examples4-12 802.1Q VLAN User’s Guide4.3.1 Solving the ProblemMuch of the existing network configuration can remain as it was for Example 2,

Example 3, 1D Trunk Connection to 802.1Q VLAN Network802.1Q VLAN User’s Guide 4-132. The Forward Default VLAN Out All Ports is set to YES using the De

Contentsvi 802.1Q VLAN User’s Guide

Chapter 4: Examples4-14 802.1Q VLAN User’s Guide2. Switch 4 receives the frame and classifies this new untagged frame as belonging to the Red VLAN. Si

Example 3, 1D Trunk Connection to 802.1Q VLAN Network802.1Q VLAN User’s Guide 4-15Figure 4-9 Switch 2 Forwards to 1Q Trunk4. When Switch 1 receives th

Chapter 4: Examples4-16 802.1Q VLAN User’s GuideSwitch 1 checks the Filtering Database for the MAC address of User B. User B’s MAC address is located,

Example 4, Isolating Network Traffic According to Protocol802.1Q VLAN User’s Guide 4-174.4 EXAMPLE 4, ISOLATING NETWORK TRAFFIC ACCORDING TO PROTOCOLTh

Chapter 4: Examples4-18 802.1Q VLAN User’s GuideFigure 4-11 Example 4, Isolating Traffic According to Protocol4.4.1 Solving the ProblemMuch of the exis

Example 4, Isolating Network Traffic According to Protocol802.1Q VLAN User’s Guide 4-19Switch 5 will be configured to isolate all AppleTalk protocol fra

Chapter 4: Examples4-20 802.1Q VLAN User’s GuideSwitch 5Switch 5 is set as follows:1. Two VLANs are added to the list of VLANs in the Device/VLAN Conf

Example 4, Isolating Network Traffic According to Protocol802.1Q VLAN User’s Guide 4-215. The AppleTalk frames must now be restricted to Ports 2 throug

Chapter 4: Examples4-22 802.1Q VLAN User’s Guide

802.1Q VLAN User’s Guide Index-1INDEXNumerics1D Trunk 1-6, 3-16, 4-101Q Trunk 1-5, 3-16, 4-4CChaptersorganization ixConfiguration 2-2Conventions xDDef

802.1Q VLAN User’s Guide vii FIGURES Figure Page1-1 Example of a VLAN... 1-22-1 Inside

IndexIndex-2 802.1Q VLAN User’s GuidePPort Assignment Configuration screenFID (Read-Only) 3-15Port Mode (Selectable) 3-15VLAN ID (Selectable) 3-15VLAN

Index802.1Q VLAN User’s Guide Index-3UUntagged frame 1-5, 2-4VVLANassigning ports 2-2components 2-1configuration 2-2default VLAN 1-5defining 2-2defini

IndexIndex-4 802.1Q VLAN User’s Guide