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WAN Technology
Introduction: What is a WAN? ... This paper will look at one of the important technologies that is meeting this need – Wide Area Networks, or WAN as it is most often referred. ... Typically, a WAN consists of two or more local-area networks (LANs). ... The largest WAN in existence is the Internet, while the first and most prolific WAN in existence was the telephone system itself. WAN technologies function at the lower 3 layers of the OSI Relational Model - physical, data link and network, using point-to-point links. ...
WAN, LAN, & MAN – A Comparison
Since we’ve used the term LAN, we should offer a brief explanation of that as well. ... By connecting LAN’s into a WAN, we can exceed these limitations. ...
A MAN (like a WAN) is not generally owned by a single organization. ... It is also frequently used to provide a shared connection to other networks using a link to a WAN. ... ”
Example of WAN applications:
In the state of Maine, WAN’s are used to provide state locations (ie District Courts, Maintenance Sites) with access to client/server and web-based applications. Growth and ever increasing demands for e-government and related services, plans for improved network performance, capacity, reliability, and manageability dictate the need for WAN technology. ... This points out one of the strengths of WAN. ...
A large group of WAN technologies have evolved over the years that include: Modem, HSSI, Wireless, T1 / T3, ISDN, xDSL, SDLC. ...
The Technology Required Behind Different WAN’s
As mentioned, there are many methods to implements a wide area network (WAN) such as ISDN, DSL, frame relay, and T-lines. ... A CSU/DSU (channel service unit/data service unit) is a small device that converts a digital signal from a LAN into a framed signal that can be transmitted over a WAN. ...
Frame relays are a business level WAN technology that can connect businesses with remote offices or directly to the internet. As the name suggest, data is sent in frames (which are variable in size) across a WAN link. This WAN link is a permanent virtual circuit (PVC) which appears to the end users as a constant connection. ...
The next level of WAN transmission is the T-carrier system which includes T-1 and T-3. ...
A packet of data travels similar paths in all of these types of WAN’s. ...
Future Trends in WAN Technology
Wide area network technology seems to be branching out all over, however recent trends for the future have developed.
Of course, the internet is by far the most common wide area network, however the most common technology used today is the Remote Access Server, or RAS. A potentially secure and direct method, RAS is, according to Strategic Technology (2002), a “gateway between the incoming phone lines and the LAN” ( 6).
Some of the more common future trends in WAN technology are, Asymmetric Digital Subscriber Line (ADSL), Symmetric Digital Subscriber Line (SDSL), Virtual Private Networks and wireless technologies. ... The companies using a WAN are a broad spectrum. Any company needing to communicate through a network between two distant locations could benefit through using a WAN. Texas Instruments uses a WAN to connect several LAN’s together.
Many other companies use a WAN to connect their LANs. The WAN allows companies to have a data connection for transferring data. The WAN can also reduce the price of long distance by allowing the company to use VoIP (Voice Over IP). ...
Regulations and Standards
International
The telecommunications revolution presents both great challenges and opportunities for regulators in the area of WAN, particularly those in developing countries. ... As WAN technology has advanced, governments worldwide have changed and many are still evolving. ... The FCC has authority to adopt rules and regulations, adjudicate disputes, grant and revoke licenses and impose penalties and fines for violations concerning all of the technologies used with a WAN.
Approximate Word count = 3139
Approximate Pages = 12.6
(250 words per page double spaced)
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