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Your enterprise has to be attached in an effort to compete within the worldwide industry. staff want to know that their company's community is offered at any time, from anywhere. A digital inner most community (VPN) accomplishes this through the use of distant connectivity applied sciences that mix present inner networks with the net to soundly converse details. development a digital inner most community is your key to designing, imposing, and securing a completely hooked up community that meets your enterprise wishes.
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Additional info for Building a Virtual Private Network
VPN technology not only reduces the cost of implementing a highly secure network environment, but also reduces management and staffing costs. In addition, it offers high availability, scalability, and effective use of network bandwidth. What goes into the making of a VPN-based solution? What are the components and requirements of a VPN? What are the building blocks of a VPN? What are the possible VPN architectures? These are the questions that this chapter explores. VPN Requirements A VPN is a modified version of a private network that allows you to leverage the traditional LAN or intranet setup along with the Internet and other public networks to communicate securely and economically.
As a result, most VPN requirements and the requirements of a traditional private network are essentially the same. 32 Chapter 2: VPN Requirements, Building Blocks, and Architectures Chapter 2: VPN Requirements, Building Blocks, and Architectures 33 However, the following requirements stand out clearly in the case of VPNs: • Security • Availability • Quality of Service (QoS) • Reliability • Compatibility • Manageability Security Private networks and intranets offer a high-security environment because the network resources are not accessible to the general public.
This is a moderately expensive class of service meant for bandwidth-intensive applications. • Absolute QoS. This class guarantees both throughput as well as latency. Therefore, it is the most expensive class of service and supports both bandwidth-intensive and delay-sensitive applications. Best effort QoS is offered to individual Internet-users that need the connectivity to surf the Web (generally from home). Absolute QoS, on the other hand, is meant for real-time audio and video transactions. Relative QoS is best suited for extranets and remote accesses that neither demand extremely high throughput nor minimal latency.