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Topic: Frame relay

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  What is frame relay? - a definition from Whatis.com
Frame relay puts data in a variable-size unit called a frame and leaves any necessary error correction (retransmission of data) up to the end-points, which speeds up overall data transmission.
Frame relay is based on the older X.25 packet-switching technology which was designed for transmitting analog data such as voice conversations.
Frame relay is often used to connect local area networks with major backbones as well as on public wide area networks and also in private network environments with leased lines over T-1 lines.
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci212153,00.html   (607 words)

 Using Frame Relay to Integrate the Enterprise
Frame Relay Assemblers Disassemblers (FRADs) are devices, such as routers, that assemble data into frame relay packets and that transmit the packets through the local access circuits to which they are connected.
Frame relay's ability to support both the legacy applications and LAN applications provides an excellent backbone for those companies that are in the process of migrating their information systems from centralized mainframe processing to distributed client/server systems.
Frame relay, on the other hand, has a packet size ranging from 500 bytes to 4000 bytes and is less susceptible to protocol overhead from consuming bandwidth.
scis.nova.edu /~raciti/frame_1.html   (1687 words)

 Privateline.com: Frame relay
Frame relay is essentially an enhancement of X.25, and takes advantage of the widespread implementation of fiber optic communication links by long-distance carriers.
Frame relay is designed to operate at speeds up to 1.5 Mbps, but may be enhanced to operate at higher speeds in the future.
Frame relay is not well-suited to the transmission of real-time voice or video, however, because of the variable delay allowed between frames.
www.privateline.com /Switching/framerelay.html   (762 words)

 What is Frame Relay
Frame relay circuits are set up at the time of installation and are maintained 24 hours per day, 7 days per week.
Frame relay network topology must be viewed from several perspectives to fully understand the network and the equipment used to construct the network.
The frame relay switch, using its internal lookup table, finds that the data is for Remote 5, a physical port on the frame relay switch, that has a local address of 16.
www.dcbnet.com /notes/framerly.html   (2405 words)

 JBM Frame Relay Fast Packet Switching Tutorial
Frame Relay is a simplified form of Packet Switching similar in principle to X.25 in which synchronous frames of data are routed to different destinations depending on header information.
Frame Relay is cost effective, partly due to the fact that the network buffering requirements are carefully optimized.
Frame Relay is also much faster than X.25: the frames are switched to their destination with only a few byte times delay, as opposed to several hundred milliseconds delay on X.25.
www.jbmelectronics.com /product/frame.htm   (1147 words)

 Frame relay: Facts and details from Encyclopedia Topic   (Site not responding. Last check: )
The frame relay network handles the transmission over a frequently-changing path that is transparent to all end-users.
Initial proposals for Frame Relay were presented to the Consultative Committee on International Telephone and Telegraph (CCITT) in 1984.
Frame relay uses the concept of shared-access and relies on a technique refered to as best-effort, EHandler: no quick summary.
www.absoluteastronomy.com /encyclopedia/f/fr/frame_relay.htm   (1951 words)

 Frame Relay - T1, T3, MPLS, VPN, Point to Point, DirecTV and Bandwidth Resources
Frame relay puts data in variable-size units called "frames" and leaves any necessary error-correction (such as re-transmission of data) up to the end-points.
Frame relay uses the concept of shared-access and relies on a technique referred to as "best-effort", whereby error-correction practically does not exist and practically no guarantee of reliable data delivery occurs.
Frame relay aimed to make more efficient use of existing physical resources, which allow for the underprovisioning of data services by telecommunications companies (telcos) to their customers, as clients were unlikely to be utilizing a data service 100 percent of the time.
www.solveforce.com /frame_relay.html   (2974 words)

 Compare Frame Relay Price Quotes with Free Consultation
With frame relay, data transmission usually originates through the private line of a customer, transfers to a shared network at the nearest frame relay switch, travels the majority of its distance through the shared frame relay network, and then transfers to the private line closest to the receiving customer.
Frame relay is normally less expensive than point-to-point lines because many customers use and share the cost of the frame relay network, rather than each paying for a private line for the entire distance their data is transmitted.
Frame relay is at times used for video conferencing, however, point-to-point lines are much better suited for the on-going high rate of bandwidth required by video conferencing.
frame-relay-quotes.info   (1020 words)

 Imbris: Taking the Internet by Storm - DSL, Frame, National Dial-UP, Wireless, Domains - The Northwest's Source for ...
Frame relay service combines the high performance and security of a private line with the reliability and flexibility of a high speed network.
Frame provides high-speed, economical interconnections for business applications such as point-of-sale terminals in the retail industry, financial transactions for banking, airline reservation systems, real estate databases, security systems and countless other applications where many locations must be connected in a WAN.
Frame relay offers higher speeds than dial-up connections over regular phone lines, which are typically limited to maximum speeds of 56 kps.
www.imbris.com /commercial/frame.html   (513 words)

 Frame relay networks - easy one-source quotes, order management, account management from King Communications, Inc.
Frame relay is a secure, private network that utilizes a logical path or “virtual circuit” to allocate bandwidth for high performance transmissions.
Frame relay is the premier high-speed packet-switching protocol communicating data, imaging, and voice between multiple locations.
Frame relay's bandwidth burst capability permits dynamic bandwidth allocation to respond to shifts in data transfer requirements, so network performance is improved.
www.king-comm.com /network/frame_relay.shtml   (352 words)

 Emerging Technologies
Frame relay is a networking protocol, which means that unlike a point-to-point private line, there's a network switch in-between your location and to whoever you're connecting.
Frame relay is "statistically multiplexed", which means that only one frame can be transmitted at a time but many logical connections can co-exist on a single physical line.
Like the state, the frame relay network provider can't guarantee that you'll always be able to transmit at the CIR (take the case where everyone on the network happens to be transmitting at once), but they can over a reasonable time span (usually over a span of seconds).
www.etinc.com /index.php?page=frfaqtext.htm   (2922 words)

 Frame Relay Service Providers
Frame Relay is a WAN protocol that operates at data link layers of the OSI reference model.
A typical Frame Relay network consists of a number of DTE devices, such as routers, connected to remote ports on multiplexer equipment via traditional point-to-point services such as T1, fractional T1, or 56-Kb circuits.
Frame Relay is implemented in both public carrier-provided networks and in private enterprise networks.
frame-relay-service.com   (258 words)

 Sangoma - Frame Relay
Because Frame Relay does not 'care' whether the frame it is switching is error-free or not, a Frame Relay node can start switching traffic out onto a new line as soon as it has read the first two bytes of addressing information at the beginning of the frame.
As a result, the performance of a Frame Relay network is virtually identical to that of a leased line, but because most of the network is shared, costs are lower.
Frame Relay is also used as a low cost carrier to replace the networks of leased lines previously used to connect ATM machines, POS terminals and other legacy devices to head office mainframes.
www.sangoma.com /support/tutorials/frame_relay.html   (1404 words)

 Frame Relay: WAN Protocol for Internetworking
Frame Relay is a WAN protocol for LAN internetworking which operates at the physical and data link layer to provide fast and efficient method of transmitting information from a user device to another across multiple switches and routers.
Frame Relay is based on packet-switched technologies similar to x.25, which enables end stations to dynamically share the network medium and the available bandwidth.
The Frame Relay frame is transmitted to its destination through virtual circuits, which are logical paths from an originating point in the network to a destination point.
www.javvin.com /protocolFrameRelay.html   (664 words)

 Frame Relay packet-switched FRAD Bridges, Routers, and FRAIDs - 56kbps FT1 - T1
Frame Relay, which is a relatively new wide area networking method, is gaining in popularity.
Frame Relay was developed to solve communication problems that other protocols could not: the increased need for higher speeds, an increased need for large bandwidth efficiency, particularly for clumping ("bursty" traffic), an increase in intelligent network devices that lower protocol processing, and the need to connect LANs and WANs.
Frame Relay is an ideal choice for connecting Wide Area Networks (WANs) that have unpredictable, high-volume, and bursty traffic.
www.arcelect.com /Frame_Relay-56kbps_FT1-T1.htm   (1375 words)

 Used Cisco Systems Frame Relay
Frame Relay often is described as a streamlined version of X.25, offering fewer of the robust capabilities, such as windowing and retransmission of last data that are offered in X.25.
Frame Relay frames that conform to the LMI specifications consist of the fields illustrated in Figure 10-5.
Frame Relay is a networking protocol that works at the bottom two levels of the OSI reference model: the physical and data link layers.
www.alliancedatacom.com /manufacturers/cisco-systems/framerelay_design/framerelay.asp   (3463 words)

 ImageStream Internet Solutions, Inc. - Frame Relay
The Frame Relay network is connected to a Frame Relay switch that in turn connects to the Frame Relay cloud.
The Frame Relay network has its own IP network number that is normally a class C or a subnet of a class C that is unique from other subnets on the system.
Each router Frame Relay interface (port) is assigned an IP address from the Frame Relay network's subnet, thus the netmask for each Frame interface on each router of the Frame Relay network is the same.
support.imagestream.com /Frame_Relay.html   (485 words)

 What is frame relay?, Frame Relay services, frame relay circuit, solutions, Frame Relay network
Frame Relay is a digital packet network service that provides all the features and benefits of a dedicated network service without the expense of multiple dedicated circuits.
In a Frame Relay network, circuits are connected to a packet switch within the network that ensures that packets are routed to the correct location.
Frame relay is a cost-effective solution for businesses that have multiple sites in locations that are far apart, businesses that need a high degree of connectivity, and businesses that need flexible communication between sites.
www.shopforbandwidth.com /frame-relay.php   (1223 words)

 Ventus Networks: Frame Relay
Frame relay allows you to make the most efficient use of bandwidth, and manage your costs through greater flexibility and scalability.
Frame relay allows you to make the most efficient use of available bandwidth, and manage your costs through greater flexibility and scalability.
Diverse network frame relay to ATM service interworking allows constant bit rate services to be delivered along with frame relay.
www.ventusnetworks.com /network/frame_relay.html   (358 words)

 FRADs: The Real Deal for Frame Relay
When it comes to extending frame relay networks to branch offices, network managers angling to boost their job security ought to start taking a serious look at frame relay access devices.
Frame relay switches can't force access devices to throttle back on frame transmissions, but they do alert those devices when congestion occurs.
Frames that have their DE bits set are eligible to be dropped if congestion occurs.
www.kmj.com /netlink/frad.html   (2537 words)

 Cisco IOS Wide-Area Networking Configuration Guide, Release 12.1 - Configuring Frame Relay - Cisco Systems
Frame Relay is a connection-oriented packet-transfer mechanism that establishes VCs between endpoints.
Frame Relay end-to-end keepalives enable monitoring of PVC status for network monitoring or backup applications and are configurable on a per-PVC basis with configurable timers.
After configuring Frame Relay encapsulation on the Cisco router or access server, you must configure the physical interface with the PVC and apply a virtual template with PPP encapsulation to the DLCI that it applies to.
www.cisco.com /en/US/docs/ios/12_1/wan/configuration/guide/wcdfrely.html   (7206 words)

 GL Communications - Frame Relay Analyzer
Frame relay is mostly used to connect local area networks with major backbones; also used in public wide area networks and in private network environments with leased lines over T-1 lines.
Frame Relay access is usually at data rates range of 56 to 2Mbps.
Frames may also be contained in either one, n x 64 kbps, or n x 56 kbps data channels.
www.gl.com /framerelay.html   (1194 words)

 Dictionary.com/frame relay
Frame Relay is the result of wide area networking
Frame Relay uses the same basic data link layer framing and
Frame Check Sequence so current X.25 hardware still works.
dictionary.reference.com /search?q=frame%20relay   (145 words)

 Frame Relay
The silly buggers from ANSI and the Frame Relay Forum (an association of users, manufacturers and carriers) are at odds as to which DLCI ought to be used for LMI.
What frame relay cannot do very well is voice or video transmission -- because that kind of traffic requires synchronization and fixed short delays from switch to switch.
Frames are variable in size and, therefore, packets carrying a voice message over the same links shared by data packets would be suffering variable delays through a node.
www.sce.carleton.ca /netmanage/dcommTutorials/scan04/scan04.html   (2203 words)

 Compare Frame Relay T1 Price Quotes with Free Consultation
Frame relay T1 is designed to provide cost effective data transmission over a shared network.
With frame relay T1, data transmission usually originates through the private line of a customer, transfers to a shared network at the nearest frame relay switch, travels the majority of its distance through the shared frame relay network, and then transfers to the private line closest to the receiving customer.
Frame relay is at times used for video conferencing, however, point-to-point lines, and MPLS are much better suited for the on-going high rate of bandwidth and signal stability required by video conferencing.
frame-relay-t1.com   (925 words)

 Green Mountain Access - Frame Relay
Frame Relay service offers your business a reliable, cost effective way to provide a dedicated Internet connection for your Local Area Network (LAN) through the Verizon Frame Relay network in Vermont.
With Frame Relay, you get the stability and availability of a leased line network without paying the high, distance-based premiums generally associated with a private network.
Because Frame Relay establishes a permanent connection between two locations (such as you and GMA), the connection is ultra-reliable and operational 24 hours a day.
www.gmavt.net /services/frame_relay.shtml   (474 words)

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