LevelOne GSW-2600TXM 2.5.4.Configuring Virtual LANs

Forwarding* Tree mode for the selected port. In this mode, ports skip the

Blocked, Listening and Learning states and proceed straight to

Forwarding.

* Since end-nodes cannot cause forwarding loops, they can be passed through the

Spanning Tree state changes more quickly than allowed by standard convergence time.

Fast Forwarding can achieve quicker convergence for end-node workstations and

servers, and also overcome other STA related timeout problems. (Remember that Fast

Forwarding should only be enabled for ports connected to an end-node device.)

2.5.4.Configuring Virtual LANs

You can use the VLAN configuration menu to assign any port on the switch to any of up

to 256 Virtual LAN groups. In conventional networks with routers, broadcast traffic is

split up into separate domains. Switches do not inherently support broadcast domains.

This can lead to broadcast storms in large networks that handle traffic such as IPX or

NetBEUI. By using IEEE 802.1Q-compliant VLANs, you can organize any group of

network nodes into separate broadcast domains, thus confining broadcast traffic to the

originating group. This also provides a more secure and cleaner network environment.

For more information on how to use VLANs, see “Virtual LANs” on chapter 4. The VLAN

configuration screens are described in the following sections.

VLAN Menu

=========

VLAN Port Configuration ...

VLAN Table Configuration ...

<OK>

Change the port VLAN configuration.

Use <TAB> or arrow keys to move. <Enter> to select.

You can use the VLAN Port Configuration screen to configure GARP, the default VLAN

identifier, default port priority, VLAN tagging on outgoing frames, GVRP and GMRP

status, and filtering of incoming frames for VLAN groups to which this port does not

belong.