Author Topic: Types of WIDE Area Network?  (Read 809 times)

santhoshidatasoft

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Types of WIDE Area Network?
« on: May 08, 2014, 05:38:25 AM »
Types of WIDE Area Network?

anil123

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Re: Types of WIDE Area Network?
« Reply #1 on: May 08, 2014, 11:29:46 AM »
A wide area network (WAN) is a network that covers a broad area (i.e., any telecommunications network that links across metropolitan, regional, national or international boundaries) using leased telecommunication lines. Business and government entities utilize WANs to relay data among employees, clients, buyers, and suppliers from various geographical locations. In essence, this mode of telecommunication allows a business to effectively carry out its daily function regardless of location. The Internet can be considered a WAN as well, and is used by businesses, governments, organizations, and individuals for almost any purpose imaginable.[1]

rahesh.datasoft

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Re: Types of WIDE Area Network?
« Reply #2 on: July 24, 2014, 06:12:59 PM »
hai

A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).
Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. The largest WAN in existence is the Internet.


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sabithppk

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Re: Types of WIDE Area Network?
« Reply #3 on: December 05, 2014, 04:13:10 AM »
Sir,

The size of a network is limited due to size and distance constraints. However networks may be connected over a high speed communications link (called a WAN link) to link them together and thus become a WAN. WAN links are usually:

Dial up connection
Dedicated connection - It is a permanent full time connection. When a dedicated connection is used, the cable is leased rather than a part of the cable bandwidth and the user has exclusive use.
Switched network - Several users share the same line or the bandwidth of the line. There are two types of switched networks:
Circuit switching - This is a temporary connection between two points such as dial-up or ISDN.
Packet switching - This is a connection between multiple points. It breaks data down into small packets to be sent across the network. A virtual circuit can improve performance by establishing a set path for data transmission. This will shave some overhead of a packet switching network. A variant of packet switching is called cell-switching where the data is broken into small cells with a fixed length.



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Pavithra M

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Re: Types of WIDE Area Network?
« Reply #4 on: January 06, 2015, 08:46:18 PM »
A Wide Area Network ( WAN) is a computer network covering multiple distance areas, which may spread across the entire world. WANs often connect multiple smaller networks, such as local area networks (LANs) or metro area networks (MANs). The world's most popular WAN is the Internet. Some segments of the Internet are also WANs in themselves. The key difference between WAN and LAN technologies is scalability. C WAN must be able to grow as needed to cover multiple cities, even countries and continents.

A set of switches and routers are interconnected to form a Wide Area Network. The switches can be connected in different topologies such as full mesh and half mesh. A wide area network may be privately owned or rented from a service provider, but the term usually connotes the inclusion of public (shared user) networks.

Both packet switching and circuit switching technologies are used in the WAN. Packet switching allows users to share common carrier resources so that the carrier can make more efficient use of its infrastructure. In a packet switching setup, networks have connections into the carrier's network, and many customers share the carrier's network. The carrier can then create virtual circuits between customers' sites by which packets of data are delivered from one to the other through the network.

Circuit Switching allows data connections to be established when needed and then terminated when communication is complete. This works like a normal telephone line works for voice communication. Integrated Services Digital Network (ISDN) is a good example of circuit switching. When a router has data for a remote site, the switched circuit is initiated with the circuit number of the remote network.

jaswin.datasoft

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Re: Types of WIDE Area Network?
« Reply #5 on: January 13, 2015, 09:19:23 PM »
A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).
Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. The largest WAN in existence is the Internet.

hruthika

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Re: Types of WIDE Area Network?
« Reply #6 on: January 18, 2015, 03:16:23 AM »
Hi,

A wide area network (WAN) is a geographically dispersed telecommunications network. The term distinguishes a broader telecommunication structure from a local area network (LAN).

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ravinder.k

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Re: Types of WIDE Area Network?
« Reply #7 on: January 21, 2015, 11:37:56 AM »
As the term implies, a WAN spans a large physical distance. The Internet is the largest WAN, spanning the Earth.
A WAN is a geographically-dispersed collection of LANs. A network device called a router connects LANs to a WAN. In IP networking, the router maintains both a LAN address and a WAN address.

A WAN differs from a LAN in several important ways. Most WANs (like the Internet) are not owned by any one organization but rather exist under collective or distributed ownership and management. WANs tend to use technology like ATM, Frame Relay and X.25 for connectivity over the longer distances.