Chapter 9 Configuring Vlans; Understanding Vlans - Cisco Catalyst 2360 Software Configuration Manual

Configuring VLANs
This chapter describes how to configure normal-range VLANs (VLAN IDs 1 to 1005) and
extended-range VLANs (VLAN IDs 1006 to 4094). It includes information about VLAN membership
modes, VLAN configuration modes, and VLAN trunks.
For complete syntax and usage information for the commands used in this chapter, see the command
Note
reference for this release.
The chapter consists of these sections:
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Understanding VLANs

A VLAN is a switched network that is logically segmented by function, project team, or application,
without regard to the physical locations of the users. VLANs have the same attributes as physical LANs,
but you can group end stations even if they are not physically located on the same LAN segment. Any
switch port can belong to a VLAN, and unicast, broadcast, and multicast packets are forwarded and
flooded only to end stations in the VLAN. Each VLAN is considered a logical network, and packets
destined for stations that do not belong to the VLAN must be forwarded through a router or a switch
supporting fallback bridging, as shown in
network, it contains its own bridge Management Information Base (MIB) information and can support
its own implementation of spanning tree. See
Before you create VLANs, you must decide whether to use VLAN Trunking Protocol (VTP) to maintain
Note
global VLAN configuration for your network. For more information on VTP, see
"Configuring VTP."
OL-19808-01
Understanding VLANs, page 9-1
Configuring Normal-Range VLANs, page 9-3
Configuring Extended-Range VLANs, page 9-11
Displaying VLANs, page 9-14
Configuring VLAN Trunks, page 9-14
C H A P T E R
Figure 9-1. Because a VLAN is considered a separate logical
Chapter 11, "Configuring STP."
Catalyst 2360 Switch Software Configuration Guide
9
Chapter 10,
9-1