6.5.1

Table Of Contents
Isolating Network Trac by
Using VLANs 9
VLANs let you segment a network into multiple logical broadcast domains at Layer 2 of the network
protocol stack.
This chapter includes the following topics:
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VLAN Configuration
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Private VLANs
VLAN Configuration
Virtual LANs (VLANs) enable a single physical LAN segment to be further isolated so that groups of ports
are isolated from one another as if they were on physically different segments.
Benefits of Using VLANs in vSphere
The VLAN configuration in a vSphere environment provides certain benefits.
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Integrates ESXi hosts into a pre-existing VLAN topology.
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Isolates and secures network traffic.
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Reduces congestion of network traffic.
Watch the video about the benefits and main principles in introducing VLANs in a vSphere environment.
Using VLANs in a vSphere Environment
(http://link.brightcove.com/services/player/bcpid2296383276001?
bctid=ref:video_using_vlans_in_vsphere)
VLAN Tagging Modes
vSphere supports three modes of VLAN tagging in ESXi: External Switch Tagging (EST), Virtual Switch
Tagging (VST), and Virtual Guest Tagging (VGT).
VMware, Inc.
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