Frame Relay

Frame Relay is a standardized wide area network technology that specifies the physical and logical link layers of digital telecommunications channels using a packet switching methodology. Originally designed for transport across Integrated Services Digital Network (ISDN) infrastructure, it may be used today in the context of many other network interfaces.

Network providers commonly implement Frame Relay for voice (VoFR) and data as an encapsulation technique, used between local area networks (LANs) over a wide area network (WAN). Each end-user gets a private line (or leased line) to a Frame Relay node. The Frame Relay network handles the transmission over a frequently-changing path transparent to all end-user extensively-used WAN protocols. It is less expensive than leased lines and that is one reason for its popularity. The extreme simplicity of configuring user equipment in a Frame Relay network offers another reason for Frame Relay's popularity.

With the advent of Ethernet over fiber optics, MPLS, VPN and dedicated broadband services such as cable modem and DSL, the end may loom for the Frame Relay protocol and encapsulation. However many rural areas remain lacking DSL and cable modem services. In such cases the least expensive type of non-dial-up connection remains a 64-kbit/s frame-relay line. Thus a retail chain, for instance, may use Frame Relay for connecting rural stores into their corporate WAN.

Read more about Frame RelayTechnical Description, Frame Relay Versus X.25, Virtual Circuits, Frame Relay Origins, Local Management Interface (LMI), Committed Information Rate (CIR), Market Reputation

Other articles related to "frame relay, frames":

Strata Com - The IPX Development
... IPX's most successful use was as the first frame relay networking product ... It formed the core of the AT T and CompuServe frame relay networks ... in 1993, increased the speed and sophistication of the frame relay offering ...
Broadband Remote Access Server
... point so that it can be transported to a switch or router over a Frame Relay, ATM, or Ethernet connection ... PPP over ATM (PPPoA) encapsulated sessions, bridged ethernet over ATM or Frame Relay (RFC 1483/RFC 1490), or just plain ethernet ... In the case of ATM or Frame Relay based access, individual subscribers are identified by Virtual Circuit IDs ...
X.25 Vs. Frame Relay Packet Switching
... Both X.25 and Frame Relay provide connection-oriented packet switching, also known as virtual circuit switching ... A major difference between X.25 and Frame Relay packet switching is that X.25 is a reliable protocol, based on node-to-node automatic repeat request ... Frame relay is a further development of X.25 ...
Link Access Procedure For Frame Relay
... In wide area network computing, Link Access Procedure for Frame Relay (or LAPF) is part of the network's communications protocol which ensures that frames are error free and executed in the right ... ITU used SDLC as a basis to develop LAPF for the frame relay environment, along with other equivalents LAPB for the X.25 protocol stack, LAPM for the V.42 protocol, and LAPD for the ... In Frame Relay Local Management Interface (LMI) messages are carried in a variant of LAPF frames ...
Frame Relay - Market Reputation
... Frame Relay aimed to make more efficient use of existing physical resources, permitting the over-provisioning of data services by telecommunications companies to their customers, as ... In more recent years, Frame Relay has acquired a bad reputation in some markets because of excessive bandwidth overbooking ... Telcos often sell Frame Relay to businesses looking for a cheaper alternative to dedicated lines its use in different geographic areas depended greatly ...

Famous quotes containing the word frame:

    We are not permitted to choose the frame of our destiny. But what we put into it is ours.
    Dag Hammarskjöld (1905–1961)