frame relay

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الإنجليزية - الإنجليزية

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Frame Relay is a form of packet switching, but uses smaller packets and requires less error checking than the traditional forms of packet switching (NET)

(Computers) standard for fast transmission of data using the "fast packet switching" method (in LAN or WAN networks)

Frame relay is a telecommunication service designed for cost-efficient data transmission for intermittent traffic between local area networks (LANs) and between end-points in a wide area network (WAN) Frame relay is based on the older X 25 packet-switching technology which was designed for transmitting analog data such as voice conversations Unlike X 25 which was designed for analog signals, frame relay is a fast-packet technology, which means that the protocol does not attempt to correct errors When an error is detected in a frame, it is simply "dropped " (thrown away) The end points are responsible for detecting and retransmitting dropped frames

A protocol to replace the x 25 packet switching protocol used in the past Frame Relay is a simplified version, owing to the vastly improved transmission facilities of today Much of the x 25 protocol's error checking, re-sync and recovery features are no longer needed, thus Frame Relay is much moer efficient, giving way to to less overhead (control) bytes and the resultant higher overall thruput

High-speed packet switching technique used to interconnect LANs Capable of any payload up to 4096 bytes per packet Defined in ITU-T I 122 Typically used to build VPNs, particularly where guarantees of bandwidth are required In Interoute’s i-21 network, the QoS capabilities of MPLS are used instead of Frame Relay to guarantee bandwidth over the network as well as provide additional flexibility in service offerings

A packet switching standard based on the older X 25 protocol that achieves greater speeds with fast, reliable networks It lowers overhead by reducing the accounting and checking procedures used in X 25

Standard packet-switched protocol for transmission of voice and data that creates "virtual" dedicated circuits These are less expensive than dedicated circuits

A high-speed packet-switched data communications service, similar to X 25 Frame relay is a leading contender for LAN-to-LAN interconnect services, and is well suited to the bursty demands of LAN environments See also Permanent Virtual Circuit, Switched Virtual Circuit [Visit the Frame Relay Forum @ http: //www frforum com/ ] Fractional T1 A service in which a customer can use less than 24 channels on a T1 line without paying the cost of the entire line Front-End Processor (FEP) A communications computer associated with a host computer that manages the lines and routing of data through the network

This ANSI/ITU-T-standard packet interface protocol has a few advantages over ISDN For one thing, you can purchase frame relay lines in increments between 56 kbps and 1 5 mbps (equivalent to a T1 connection) The protocol also has a flat-rate billing structure instead of a per-hour usage charge But frame relay is designed for data transfer only, so it's not well suited to videoconferencing or any other voice application Frame relay is sometimes confused with a leased line Both are used primarily to extend a local area network (LAN) between business branches However, a leased line is a dedicated line permanently connected between sites, and frame relay uses the telephone company's shared network on an as-needed basis

A network access protocol for bursty data applications that is characterized by four important features: high transmission speed, low network delay, high connectivity and efficient bandwidth use

A switching technology that uses packets Two of the strengths of Frame Relay are that the packets can have variable length frames and it is protocol independent

This phrase refers to a shared-bandwidth wide area network based on a subset of High-level Data-link Control (HDLC) called LAP-D (link access procedure-D channel) Frame relay is designed to be carried over high-speed, high-accuracy links such as T-1 or the still emerging T-3; a 56Kbps line is the most common implementation Individual frames can vary in size, but they are usually 4,096 bytes Users reserve a specific data rate called the CIR, or committed information rate, but users can attempt to burst data at higher rates Extra frames are discarded if the carrier's network doesn't have sufficient capacity Frame relay is the CCITT standard for a low-overhead packet-switching protocol that provides dynamic bandwidth allocation at speeds up to 2Mbits/sec or more It is considered a second generation X 25 in that it is more efficient

An interface standard which defines a method of routing packets of data, or frames, in a wide area network It operates at the data-link layer, thereby saving the overhead of error recovery present in higher layer protocols and insuring greater throughput in the network See also: protocol, TCP/IP Protocol Suite

A protocol for connecting computers on a WAN Frame Relay networks are in some cases being replaced by faster technologies, including ATM Back to Top

Frame Relay is a network technology ideally suited to carrying traffic that is of bursty or sporadic in nature Network costs are reduced by having many Frame Relay customer sharing the same network capacity (and relying on them wanting to make use of the network at slightly different times)

A communications interface that provides high-speed packet transmission with minimum delay and efficient use of bandwidth It assumes that all connections are reliable and does not have error detection or control which helps to speed up the protocol

(FR) A high-speed packet-switched data communications service, similar to X 25 Frame relay is a leading contender for LAN-to-LAN interconnect services, and is well suited to the bursty demands of LAN environments See also permanent virtual circuit and switched virtual circuit

A networking protocol, which means that unlike a point-to-point private line, there's a network switch in-between your location and to whomever you're connecting Actually, you get a private line to a node on the frame relay network, and the remote location gets a private line to a near-by frame relay node When you send traffic over your line, the network gets it to the remote location by routing it through the frame relay network Then the data is passed to the remote location's line and it has reached its destination

At the data link layer in a wide area network (WAN), a protocol for transferring packets at speeds up to 1 544 Mbps, depending on the physical medium being used Frame Relay is designed for noise-free digital lines, and therefore omits the error correction facilities The result is increased bandwidth

A high-speed packet switching protocol used in wide area networks (WANs) Frame Relay provides for a granular service up to a DS1 rates of 1 544 Mbps

A high-speed packet switching protocol popular in networks, including WANs, LANs, and LAN-to-LAN connections across vast distances

The emerging standard for high-speed data communications, offering users transmission speeds of 2 048 megabits per second and higher It allows faster speeds than the X 25 packet switching standard because it does away with elaborate error-correction and routing information Its main application is interconnecting local area networks

A fast packet switching protocol based on the LAPD protocol of ISDN that performs routing and transfer with less overhead processing than X 25

A high-speed packet switching protocol used in wide area networks (WANs) Providing a granular service of up to DS3 speed (45 Mbps), it has become very popular for LAN to LAN connections across remote distances Many of the major carriers offer frame relay services

A fast packet technology initially defined as an ISDN frame mode service Frame relay uses a minimal set of Data Link Layer procedures across the User-to-Network Interface (UNI), providing unacknowledged transfer of variable length frames between users Additional Layer 2 and 3 functions must be provided by the end-users The Layer 2 protocol uses LAPF-Core procedures The network discards any frame with bit errors Frame relay offerings today primarily offer permanent virtual circuit (PVC) services independent of ISDN Switched virtual circuit (SVC) services will use ISDN-like signaling for call control

fr

المصطلحات ذات الصلة

Frame Relay Service

(Computers) telecommunications service based on high-capacity telephone lines capable of transferring up to 1.5 mbps (mainly used for connecting between LANs and a WAN)

الواصلة

frame re·lay

التركية النطق

freym riley

النطق

/ˈfrām ˈrēˌlā/ /ˈfreɪm ˈriːˌleɪ/

علم أصول الكلمات

[ 'frAm ] (verb.) 14th century. Middle English, to benefit, construct, from Old English framian to benefit, make progress; akin to Old Norse fram forward, Old English fram from.