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Virtual Circuit is Created. Each circuit is known by its DLCI. i.e. Data Link Connection Identifier.
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What is an updated and digital version of X25 that also relies on packet switching?
Frame relay.
What are the advantages of Frame Relay over x25?
Advantages of frame relay over x.25?Frame relay operates at a higher speed(1.544 mbps & currently 44.376mbps) By this it can easily be used instead of a mesh of T-1 or T-3 linesFrame relay operates in just the physical and data link layers. By this it is used as a back bone nwtwork to provide services to protoclols that already have a network layer protocol.It allows brusty data. in case of x.25 and t-line there is a fixed data rateFrame relay allows a frame size of 9000 bytes, which can accommodate all LAN framesFrame relay is less expensive than other traditional WAN
Difference between ATM and frame relay?
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 .
What are the hardware requirements for frame relay?
what are the hardware and requirements for a WAN
What are the types of network interface card?
Gigabit Ethernet interface Controller interface Serial interface Multilink Group interface MFR (Multilink Frame Relay bundle interface) Dialer interface Loopback interface Tunnel interface ATM interface
What is the example of packet switching network?
IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...
What is Frame relay over DSL?
A means of providing access to the Frame Relay network over a DSL connection
How does frame relay work?
Frame Relay is a packet-switching technology. It works by sending information in packets, which are called frames, through a shared frame-relay network.
Does ATM and frame relay has anything in common?
Both ATM and Frame Relay are ways to connect your local network router to an ISP
Does frame relay operate at layer 3 of the OSI model?
No. Frame Relay is not operating at Layer 3. Frame Relay is strictly a Layer 2 protocol suite, whereas X.25 provides services at Layer 3 (the network layer) as well. This enables Frame Relay to offer higher performance and greater transmission efficiency.
Which bit is set by a Frame Relay switch to inform the source station that there is congestion on the network?
FECN
Which technology is used to dynamically map next hop network layer addresses to virtual circuits in a Frame Relay network?
inverse ARP
Which two items allow the router to map data link layer addresses to network layer addresses in a Frame Relay network?
LMI protocol, Invers ARP
What frame-relay command shows encapsulation type?
show frame-relay map
What can X25 do the Frame Relay cannot do?
There are various differences between X.25 and Frame Relay. The most significant are: 1. Call Control X.25 connection establishment and release (call control) use in-band signaling within the same virtual channel used for user data transmission causing additional overhead. Frame Relay call control uses separate virtual channels identified by reserved DLCI using the LMI (Local Management Interface) protocol. 2. Routing vs. Switching X.25 performs packet switching on OSI layer 3 (network layer); Frame Relay performs packet switching on OSI layer 2 (data-link). Frame Relay does not use any layer 3 protocol. 3. Flow Control Frame Relay (FR) doesn't perform flow control between frame handlers (FR routers). X.25 routers have to acknowledge each frame; in case of frame errors frames have to be retransmitted and acknowledged. Frame Relay relies on flow control performed by higher layer protocols.Source: http://www.synapse.de/ban/HTML/P_LAYER2/Eng/P_lay264.html
Which frame relay feature is responsible for signaling standard between a router and fr switch?
LMI
What is an updated and digital version of X25 that also relies on packet switching?
Frame relay.
