VPNs: A Comparison of IP-VPN and Frame Relay Services
by the Frame Relay Forum

Abstract:

Say "VPN" and most people think Internet technology. Generically defined, a Virtual Private Network (VPN) is a means of transmitting digital information over shared public network infrastructure in which secure and reliable connectivity, management and addressing is equivalent virtually to that of a private network. Despite the recent excitement about IP-VPNs, Layer 2 VPNs have been available since the mid to late 1980s as VPDNs. Current managed frame relay services run mission-critical applications and provide secure, stable predictable and highly manageable solutions. Several market drivers are fueling the euphoria surrounding IP-VPNs. A comparison of IP-VPN and frame relay services in relation to these market drivers may serve to clarify the current situation.

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