Cabletron Systems 802.1Q manual Assigning a Vlan ID

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Chapter 3: VLAN Configuration

1Q TRUNK – This mode sets the port for transmitting to another 802.1Q aware device. In this mode, all frames are transmitted with a tag header included in the frame (excluding BPDUs). The switch will drop all untagged frames it receives on the 1Q Trunk port. The Port VLAN List for the port includes all VLANs.

1D TRUNK – This mode sets the port for transmitting to a legacy 802.1D switch fabric. In this mode, all incoming frames are classified into the default VLAN and all frames are transmitted untagged. The switch expects to receive only untagged frames through the 1D Trunk port. This mode also updates the Port VLAN List and makes the port eligible to transmit frames for all VLANs. The 1D Trunk mode can be used in conjunction with the “Forward Default VLAN Out All Ports” parameter and the Default VLAN to allow all stations on a legacy portion of the network to access all stations or servers in the 802.1Q portion of the network.

3.When the desired operational mode for the port is displayed, use the arrow keys to highlight the SAVE command at the bottom of the screen.

4.Press ENTER. The message “SAVED OK” displays.

3.5.2Assigning a VLAN ID

The Port Assignment Configuration screen also enables the user to set each port’s VLAN ID (PVID) by stepping through a list of all configured VLANs. To assign a VLAN ID to a port in this manner, perform the following steps:

NOTE

It may be necessary to use the NEXT and PREVIOUS commands to page through the available ports. For instructions, refer to Section 3.5.3.

1.Use the arrow keys to highlight the VLAN ID field for the port combination you wish to change.

2.Use the SPACE bar or BACKSPACE key to step sequentially through the previously configured VLAN ID numbers. Only existing VLAN IDs will be displayed.

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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 Using this Guide Structure of this GuideRelated Documents Document ConventionsChapter Virtual Local Area Networks Defining VLANsBuilding One Building Two SecureFast VLANs Types of VLANs1 802.1Q VLANs Other Vlan StrategiesBenefits and Restrictions Vlan TermsData frame that does not have a Tag Header 1D Trunk Getting Help Your email address802.1Q Vlan User’s Guide Description Vlan ComponentsConfiguration Process 1 Defining a VlanClassifying Frames to a Vlan Vlan Switch Operation Customizing the Vlan Forwarding ListInside the Switch Receiving Frames from Vlan PortsForwarding Decisions Broadcasts, Multicasts, and Unknown UnicastsKnown Unicasts Garp Switch Operation Managing the Switch Switch Without VLANsSwitch with VLANs Switch Management with VLANsManaging the Switch Summary of Vlan Local Management Preparing for Vlan Configuration802.1Q Vlan Configuration Menu Screen When to UseHow to Access Menu Definitions Device Vlan Configuration Screen Device Vlan Configuration ScreenField Definitions 1 Defining a Vlan Changing the Vlan to FID Association Renaming a VlanDeleting a Vlan Enabling VLANsDisabling VLANs Changing the Forwarding Mode Paging Through the Vlan ListPort Assignment Configuration Screen Port Assignment Configuration ScreenChanging the Port Mode Port ModeAssigning a Vlan ID Port Filtering Configuration Screen Paging Through the Port ListPort Filtering Configuration Screen Displaying Vlan IDs Associated with a Port Vlan ListsSelecting the Type of Filtering for a Port Vlan Forwarding Configuration Screen Vlan Forwarding Configuration ScreenViewing Current Vlan Ports Frame FormatPaging Through Vlan Forwarding List Entries Adding Forwarding List EntriesDeleting Forwarding List Entries Protocol Vlan Configuration Screen Changing the Frame FormatProtocol Vlan Configuration Screen Selectable Feature Status Assigning a Protocol Family to a Vlan ID Ether typeProtocol Vlan Configuration Screen Displaying the Protocol Types on Current Ports Protocol Ports Configuration Screen 10 Protocol Ports Configuration ScreenDelete ALL Adding/Deleting Ports Associated with a Vlan ID Quick Vlan Walkthrough802.1Q Vlan User’s Guide Hybrid 12 Walkthrough Stage Two 13 Walkthrough Stage Three 14 Walkthrough Stage Four Quick Vlan Walkthrough 15 Final Walkthrough Stage Example 1, Single Switch Operation Chapter ExamplesSolving the Problem Switch Configured for VLANsFrame 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 Example 3, 1D Trunk Connection to 802.1Q Vlan Network Transmitting to BridgeExample 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 Index NumericsIndex-2 802.1Q Vlan User’s Guide 802.1Q Vlan User’s Guide Index-3 Index Index-4 802.1Q Vlan User’s Guide