Frame Relay Encapsulations

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Frame Relay is an industry-standard data-link layer protocol that is commonly used in packet-switched networks. Frame Relay supports technological advances such as fiber-optic cabling and digital transmission. Frame Relay can eliminate time-consuming processes (such as error correction and flow control) that are necessary when using older, less reliable WAN media and protocols.

When purchasing bandwidth, customers buy a committed information rate (CIR) from the carrier to ensure that their minimum bandwidth requirements will be met. Adding an additional channel or data-link connection identifier (DLCI) will provision a new virtual circuit and set of connection characteristics. Adding more channels to an existing DLCI, where the physical facilities support it, adds bandwidth. Channels can be added easily in this manner to meet growth requirements.

Because a public network is being used, a service provider must be consulted to obtain information specific to a link.

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