Cisco Catalyst 4500 Series - Page 2005

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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 83 Configuring Easy Virtual Network
About Easy Virtual Network
Figure 83-1 Network without Virtualization
Virtual networks provide a coarse-grained segmentation of different user groups on one physical
network. By configuring virtual networks, you can virtualize a single IP infrastructure to provide a
number of virtual networks end to end. In the figure below, a single IP infrastructure is virtualized into
two VPNs by creating two VRFs, Red and Green.
Figure 83-2 Network with Virtualization
Laptop in Red
User group
Laptop in Green
User group
Server in Red
User group
Server in Green
User group
277893
Laptop in Red
User group
Laptop in Green
User group
Server in Red
User group
Server in Green
User group
277894
Each asterisk indicates VRF definition
Each dashed line indicates edge interface
Parallel solid lines group indicates trunk interface
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