Frame relay is a high-performance wan protocol that operates at the physical and data link layers of the osi reference model frame relay originally was designed for use across integrated services digital network (isdn) interfaces. C h a p t e r 15 frame relay frame relay is a layer 2 (data link) wide-area networking (wan) protocol that operates at both layer 1 (physical) and layer 2 (data link) of the osi networking model. This chapter describes the tasks for configuring frame relay on a router or access server for further general information about frame relay, see the chapter wide-area networking overview at the beginning of this book.
Basic concept of frame relay frame relay is one of the most popular wan service deployed over the past decade even though several advanced technologies (such as vpn, atm) are available today, frame relay still rocks and will be in near future due to its features, benefits and lower cost in comparison with other point to point wan services. Frame relay is a high-performance wan protocol that operates at the physical and data link layers of the osi reference model frame rely i no more part of 200-125.
Frame relay won in the wan over atm, which proved too expensive despite its good points, such as five levels of qos now mpls is pushing aside both.
Frame relay is a packet switching wide area network protocol that works over t1 and t3 lines, largely made obsolete by newer and faster technologies.
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