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Hybrid Networks
Some companies have to decide whether to use a private− or public−switched network for their voice, data, video, and Internet needs. Therefore, these organizations use a mix of services based on both private and public networks. The high−end usage is connected via private facilities creating a virtual private network (VPN), while the lower−volume locations utilize the switched network. Installing private−line facilities comes from the integration of voice, data, video, graphics, and fax transmissions. Now VPNs are used on the Internet to guarantee speed, throughput, quality of service, and reliability. This new wave of VPNs takes up where the voice VPNs left off. Only by combining these services across a common circuitry will many organizations realize a savings.