Chapter 4. Virtual Private Networks
This chapter covers the following topics:
Virtual private networks (VPNs) are logically partitioned, private data networks deployed over a shared or public network infrastructure. VPNs are implemented with a wide range of technologies, and can be self-implemented or managed by a service provider. VPNs allow end customers to realize the cost advantages of a shared network, while enjoying exceptional security, quality of service (QoS), extensibility, reliability, and manageability—just as they do in their own private networks.
VPN solutions can apply ...
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