Frame Relay, Solutions for Businesses and Corporations (Part 2)

This updated guide examines Frame Relay, Solutions for Businesses and Corporations (Part 2) and organizes the essential facts, background, and practical takeaways in clear American English.

Royal Union

Note [1] CCITT (Consultative Committee for International Telegraph and Telephone): Advisory committee on international telegraph and telephone. [2] ANSI (American National Standards Institute): American National Standard Academy. [3] OSI (Open System Interconnection): Open system connection model. [4] TCP (Transmission Control Protocol): The control protocol transmitted in the TCP / IP protocol family has a mechanism for detecting errors and then replaying lost packets. [5] HDLC (High-Level Data Link Control): This is a standard of data packaging on ISO wide area network (WAN); HDLC supports both configuration (point-to-point) (point-to-point) and multipoint (multiple points). [6] CDU / CSU (Channel service unit / Data service unit): A digital interface device that connects end-user devices to local phone lines. [7] DTE (Data terminal equipment): A device towards the end user of an interface between the user and the network is considered as a device that sends or receives data or both (usually a router). A DTE connects to a data network through a DCE (eg a modem) and specifically uses the clock signal generated by that DCE. DTEs include devices such as computers, protocol changers, multiplexers. [8] DCE (Data circuit-terminating equipment): The device used to convert user data from DTE to an acceptable form for Wan service The commonly used DCE device is a modem. [9] CPE (customer premises equipment): Termination equipment such as terminals, phones or modems provided by the telephone company, installed at the customer site and connected to the company's network phone. [10] Data-link connection identifier ( DLCI ): A value indicating a PVC or an SVC in a Frame Relay network. In the basic Frame Relay specification, DLCIs are locally significant (it is understood: connected devices can use different values to indicate the same connection. In the LMI expansion specification, The DLCI has overall meaning (it is understood: the DLCI indicates separate terminals). [11] PVC (Permanent virtual circuit): A virtual channel is fixed. The PVC saves bandwidth related to channel setup. [12] SVC (switched virtual circuit): A virtual channel is set to dynamically demand when the transmission has ended. SVCs are used in situations where data transmission is infrequent. [13] Inverse ARP (Inverse Address Resolution Protocol) [14] ISDN (Integrated Services Digital Network): This is a switch-based wide area network technology that allows telephone networks to transmit data and voice. [15] MUX : In communication systems, MUX stands for multiplexing, a device that sends multiple signals on a transmission channel at the same time as a single, complex signal to one device. Other devices can recover (restore) the inherent separate signals on the receiving device. Receivers are sometimes called DEMUX. [16] PBX (private branch exchange): General branch, switching system used in companies and organizations to handle outgoing and incoming calls. PBX is a device that provides private internal voice switching service and voice related services in a private network.

See Part I