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Cisco ME 3400 User Manual

Cisco ME 3400
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CHAPTER
11-1
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
11
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.
Understanding VLANs, page 11-1
Creating and Modifying VLANs, page 11-7
Displaying VLANs, page 11-14
Configuring VLAN Trunks, page 11-14
Configuring VMPS, page 11-23
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 11-1. Because a VLAN is considered a separate logical network, it contains its own bridge MIB
information and can support its own implementation of spanning tree. See Chapter 14, “Configuring
STP.

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Cisco ME 3400 Specifications

General IconGeneral
CategorySwitch
Rack MountableYes
Jumbo Frame SupportYes
Authentication MethodRADIUS, TACACS+
RAM128 MB
Flash Memory32 MB
Power DeviceInternal power supply
ModelME 3400
LayerLayer 2
MAC Address Table Size8000 entries
Remote Management ProtocolSNMP, Telnet, SSH, HTTP, HTTPS
FeaturesVLAN support, IGMP snooping, Quality of Service (QoS)
Compliant StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.3x
Memory128 MB
Power SupplyAC 120/230 V (50/60 Hz)
Dimensions (H x W x D)4.4 cm x 44.5 cm x 24.2 cm
Routing ProtocolStatic routing

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