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Frame relay vs. VPNs

Why is a virtual private network (VPN) better than frame relay?
You are comparing apples and oranges. Frame relay is a means of moving data from point to point. A VPN provides an encrypted tunnel over otherwise insecure communications channels to create a "virtual" network. VPN can run over frame relay, ATM, or just about any type of communications media, provided the proper interface is used.

This was last published in August 2001

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What are the types of MPLS VPNs? In this Ask the Expert response, VPN expert Rainer Enders breaks down the types of MPLS VPNs and explains their differences.

How to prepare enterprise WANs for MPLS/VPN integration How should IT professionals prepare their enterprise WANs (wide area networks) for an MPLS VPN integration? Find out using the steps described in this tip.

Classes of MPLS services: Find the best MPLS/VPN service for your WAN Despite the many names given to MPLS/VPNs by marketers, there are only three classes of MPLS-based VPN services with very distinct characteristics. If you’re able to map their service descriptions into one of these classes, you’ll immediately understand the benefits and drawbacks of the service offerings and have the knowledge to choose the appropriate MPLS service for your enterprise wide area network (WAN).

VPLS: A secure LAN cloud solution for some, not all VPLS can be the right solution for enterprise customers using non-IP protocols and for disaster recovery scenarios, as long as service providers and customers understand the security implications and don't get swept away with the hype.

MPLS QoS: Implementing the best model for guaranteed service Adding Quality of Services (QoS) guarantees for MPLS VPN services using DiffServe is a significant engineering undertaking, but advanced planning will help you choose the right QoS model for the project.

Making the case for Layer 2 and Layer 3 VPNs Offering VPN services isn't a simple Layer 2 or Layer 3 choice. If you want to implement true convergence onto a single core infrastructure, your core network should support the transport of public IP and private IP (VPN), as well as a number of legacy Layer 2 WAN and LAN technologies (for example, with Any Transport over MPLS – AtoM).

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Frame relay vs. VPNs

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