ATM as well as frame relay are switched WANs. Frame relay protocol was designed to replace X.25 . ATM is advantageous as it is a cell network and a cell network uses the cell as a basic unit of data exchange and are small and fixed size block of information .
To tell you in brief, ATM provides QoS(Quality of Service), while X25 and frame Relay dont. ATM has a fixed size frame I.e 53 bytes 5 for the header and remaining 48 for payload,also it is a cell service unlike the other two. hope it helps.
They both operate at layer 2, but the difference is in the way they transfer data.
ATM was designed in the 1980s to deliver five distinct levels of QoS, so users could send traffic with greater or less delay. ATM is a cell service that uses a fixed size cell of 53 bytes, 5 bytes of header and 48 bytes of payload. If the payload was longer than the 48 bytes available, it would be split up and packaged in other cells. This was not true of frame relay, which accommodated frames of widely varying length.
Frame relay, the outgrowth of slower, more careful, error-correcting X.25, is packet technology designed to carry variable-length frames over high-quality connections such as fiber, which was just coming into its own in the early 1990s when frame relay started its heyday.
Frame relay has more robust quality of service functionality
1-ISDN is a circuit switching where as ATM is a packet switching. 2-ISDN is a point to point fixed bandwidth where as ATM is a variable bandwidth. By----- RAHUL SINGH ABES IT GHAZIABAD
Gigabit Ethernet interface Controller interface Serial interface Multilink Group interface MFR (Multilink Frame Relay bundle interface) Dialer interface Loopback interface Tunnel interface ATM interface
datagram is used in conectionless n/w e.g. UDP Whereas packets used in connection oriented n/w e.g. ATM X.25 tcp
Point-to-point interfaces are used in serial communication. These types of connections are assumed to transmit solely to the station at the opposite end. The examples of Point-to-point are EIA/TIA 232, EIA/TIA 449, X.25, Frame Relay, T-carrier, and OC3 - OC192. simply: 1 source port to 1 destination port Point-to-multipoint connects one station to several other stations. Point-to-multipoint are of two types • Point-to-multipoint Non-Broadcast • Point-to-multipoint Broadcast In Point-to-multipoint Non-broadcast, the communication is replicated to all the remote stations. Only specific, selected stations hear the replicated communication. The examples are Frame Relay and ATM. simply: 1 source port to multiple destination ports
ATM Devices=======================An ATM network is made up of an ATM switch and ATM endpoints. An ATM switch is responsible for cell transit through an ATM network. The job of an ATM switch is well defined: it accepts the incoming cell from an ATM endpoint or another ATM switch. It then reads and updates the cell-header information and quickly switches the cell to an output interface toward its destination. An ATM endpoint (or end system) contains an ATM network interface adapter. Examples of ATM endpoints are workstations, routers, digital service units (DSUs), LAN switches, and video coder-decoders (CODECs). Figure 20-3 illustrates an ATM network made up of ATM switches and ATM endpoints.Figure 20-3: An ATM network comprises ATM switches and endpoints.http://www.pulsewan.com/data101/images12341.gif An ATM Network consists of an ATM switch and ATM end systems.
Both ATM and Frame Relay are ways to connect your local network router to an ISP
Atm frame relay
atm and frame-relay
difference between debit cards and ATM cards Debit cards, there are points of sale or ATM cards, there are no points of sale
A DSLAM that supports ATM services A DSL endpoint device that supports ATM technology
The difference between POS and ATM withdrawal is where the transaction takes place. A POS withdrawal is typically cash back at a point of sale at a retailer while an ATM withdrawal takes place at an ATM.
ATM switches, core switches and frame relay switches are WAN devices that can be found in the cloud.
Frame Relay/ATM/PPP Internet Service Provider PSTN
Car, Airplane, train, bus, subway, and helicopter are all examples of transportation technology.
The most common WAN data-link protocols are: 1. HDLC 2. PPP 3. Frame Relay 4. ATM
Leave both networks as they are and use an MPLS carrier between them
By implementing Asynchronous Transfer Mode (ATM) in the DSL access and backbone network