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Preface vii
Preface
Welcome to the Enterasys Networks 802.1Q VLAN User’s Guide. This guide introduces and
describes Enterasys Networks’ 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 Enterasys Networks products used in 802.1Q VLAN environments.
USING THIS GUIDE
This guide serves as a supplement to the Local Management chapter of the Enterasys Networks
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.
IMPORTANT NOTICE
Information in this guide refers to firmware version 3.x and 4.x only. It does not refer to firmware
version 5.x.
This guide applies to 2X2XX, 6X2XX, and 6X3XX Ethernet switch devices only.