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Concept of Computer Dial up Connection
 
Dial up networking allows devices to connect to a LAN or WAN through telephone lines. It is often used for home users or networks, thus providers have special subscriptions for them.
Added: 05/01/2010, Hits: 513, Rating: 0, Votes: 0
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Connect Speed vs Carrier Speed
 
This tutorial discusses the difference between connect speeds and carrier speeds.
Added: 08/10/2002, Hits: 665, Rating: 0, Votes: 0
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Data-Link Switching
 
Data-link switching (DLSw) provides a means of transporting IBM Systems Network Architecture (SNA) and network basic input/output system (NetBIOS traffic over an IP network. It serves as an alternative to source-route bridging (SRB), a protocol for transporting SNA and NetBIOS traffic in Token Ring environments that was widely deployed prior to the introduction of DLSw.
Added: 05/08/2000, Hits: 706, Rating: 0, Votes: 0
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Digital Encoding
 
Digital Encoding defines the way data bits are represented on the physical communication line. This representation may vary from the basic NRZ Encoding to the more complicated HDB3 one. This document will describe the requirements from an encoding technique and show a brief description of a few popular ones.
Added: 05/08/2000, Hits: 955, Rating: 0, Votes: 0
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Guide to Broadband Internet Access
 
Broadband is becoming the standard for Internet access. Learn why you should make the switch to broadband.
Added: 02/02/2002, Hits: 657, Rating: 0, Votes: 0
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Introduction to Voice Over IP
 
So what is VoIP? The base idea is unifying voice and data onto a single network infrastructure - by digitizing the voice signals, convert them into IP packets and send them through an IP network together with the data information, instead of using a separate telephony network.
Added: 05/08/2000, Hits: 639, Rating: 0, Votes: 0
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Line Polling
 
In an attempt to reduce communication costs, many networks provide a way for multiple terminals to share a single communication line. Instead of each terminal being connected directly to the central computer by a separate line, a number of terminals share a line. in this way the number of lines (and hence modems or line drivers) is greately reduced.
Added: 05/08/2000, Hits: 592, Rating: 0, Votes: 0
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Packet Switching Simulation
 
Most modern Wide Area Networks (WANs) protocols, such as TCP/IP, X.25 and Frame Relay, are based on packet switching technologies.
Added: 05/08/2000, Hits: 1,188, Rating: 0, Votes: 0
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Peer-to-Peer Communications
 
Each layer uses its own layer protocol to communicate with its peer layer in the other system. Each layer’s protocol exchanges information, called protocol data units (PDUs), between peer layers. This peer-layer protocol communication is achieved by using the services of the layers below it. The layer below any current or active layer provides its services to the current layer.The transport layer will insure that data is kept segmented or separated from one other data. At the network layer we get packets that begin to be assembled. At the data link layer those packets become frames and then at the physical layer those frames go out on the wires from one host to the other host as bits
Added: 02/01/2011, Hits: 793, Rating: 0, Votes: 0
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RS-232
 
Interface Between Data Terminal Equipment and Data Communications Equipment Employing Serial Binary Data Interchange.
Added: 05/08/2000, Hits: 1,332, Rating: 0, Votes: 0
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Sharing a Dial-Up Connection
 
The Five Steps to Network Sharing Nirvana.
Added: 09/24/2002, Hits: 841, Rating: 0, Votes: 0
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Signaling System No. 7
 
SS7 is a signaling system that allows network switches and data-bases to communicate, and its implementation is essential for communication between ISDN LEs
Added: 05/08/2000, Hits: 540, Rating: 0, Votes: 0
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Switched Multimegabit Data Service (SMDS)
 
This chapter summarizes the operational elements of the SMDS environment and outlines the underlying protocol. A discussion of related technologies, such as Distributed Queue Dual Bus (DQDB) is also provided. The chapter closes with discussions of SMDS access classes and cell formats.
Added: 05/08/2000, Hits: 471, Rating: 0, Votes: 0
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Synchronous Digital Hierarchy (SDH)
 
SDH offers network operators a future-proof network solution. It has been designed to support future services such as Metropolitan Area Networks (MANs), Broadband ISDN, and personal Communications networks.
Added: 05/08/2000, Hits: 584, Rating: 0, Votes: 0
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Understanding Circuit Bandwidth
 
Using a T-1 as an example, this tutorial explains how to calculate bandwidth on digital circuits.
Added: 08/10/2002, Hits: 557, Rating: 0, Votes: 0
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Video over the InterNet
 
Streaming in the context of communication means that the audio/video file is transmitted while it is being created, and converted at the receiving point into a continues video and sound.
Added: 05/08/2000, Hits: 588, Rating: 0, Votes: 0
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Virtual Circuits
 
A Virtual Circuit is a logic circuit created within
shared network between two network devices. Two types of virtual circuits exists: switched virtual circuit and permanent virtual circuit. Switched Virtual Circuits (SVC) is a virtual circuit that is dynamic ally established on demand and terminated when transmission is complete.
Communication over an SVC consists of three
phases: circuit establishment, data transfer and
circuit termination

Added: 10/10/2014, Hits: 379, Rating: 0, Votes: 0
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WDM - Wavelength Division Multiplexing
 
WDM offers an attractive solution to increasing LAN bandwidth without disturbing the existing embedded fiber, which populates most buildings and campuses, and continue to be the cable of choice for the near future. By multiplexing several relatively coarsely spaced wavelengths over a single, installed multimode network, the aggregate bandwidth can be increased by the multiplexing factor.
Added: 05/08/2000, Hits: 1,085, Rating: 0, Votes: 0
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What are T1 and T3 lines
 
T1 and T3 lines are basically leased lines, which are used in the field of telecommunications. They are an example of reserved circuit communication that works through fiber optic cables and copper wiring.
Added: 05/01/2010, Hits: 388, Rating: 0, Votes: 0
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