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Frame Relay

(communications)Frame Relay - A DTE-DCE interface specification based on LAPD (Q.921), the Integrated Services Digital Network version of LAPB (X.25 data link layer). A common specification was produced by a consortium of StrataCom, Cisco, Digital, and Northern Telecom.

Frame Relay is the result of wide area networking requirements for speed; LAN-WAN and LAN-LAN internetworking; "bursty" data communications; multiplicity of protocols and protocol transparency. These requirements can be met with technology such as optical fibre lines, allowing higher speeds and fewer transmission errors; intelligent network end devices (personal computers, workstations, and servers); standardisation and adoption of ISDN protocols. Frame Relay could connect dedicated lines and X.25 to ATM, SMDS, BISDN and other "fast packet" technologies.

Frame Relay uses the same basic data link layer framing and Frame Check Sequence so current X.25 hardware still works. It adds addressing (a 10-bit Data Link Connection Identifier (DLCI)) and a few control bits but does not include retransmissions, link establishment, windows or error recovery. It has none of X.25's session layer but adds some simple interface management. Any network layer protocol can be used over the data link layer Frames.

Frame Relay Resource Center.
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Framable
Frambaesia
frambesia
framboesia
framboise
Frame
frame buffer
Frame building
Frame Check Sequence
frame grabber
frame in
Frame level
Frame of mind
Frame of reference
frame pointer
frame rate
-- Frame Relay --
Frame Relay Access Device
Frame saw
Frame Technology Corporation
frame up
Frame-up
framed
FrameKit
FrameMaker
Framer
frames per second
frameshift
Framework
Framework 4
Framing
Framing chisel
framing specification
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