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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) on the Cisco ME 3400 Ethernet Access switch. It
includes information about VLAN membership modes, VLAN configuration modes, VLAN trunks, and
dynamic VLAN assignment from a VLAN Membership Policy Server (VMPS).
Note
For complete syntax and usage information for the commands used in this chapter, see the command
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, as shown in
Figure
information and can support its own implementation of spanning tree. See
STP."
78-17058-01
Understanding VLANs, page 11-1
Creating and Modifying VLANs, page 11-6
Displaying VLANs, page 11-14
Configuring VLAN Trunks, page 11-14
Configuring VMPS, page 11-23
11-1. Because a VLAN is considered a separate logical network, it contains its own bridge MIB
C H A P T E R
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
11
Chapter 14, "Configuring
11-1
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