Understanding the WAN Technologies

In today’s growth of the enterprises around the world they were developed to vast area and beyond the single location, at becomes a must to interconnect those using LANs in various locations in order to form the WANs. There are so many technologies around us in forming the WAN connections in both the hardware and software functions.  

 

What Is a WAN?             

It is data communication network which mostly operates and functions beyond the scope of the LAN.

It was used and provided by the service provider or the carrier mostly as cable or a company. The locations of the organization are connected to each other and to the locations of the other organizations, to remote users and the external services. They carries a variant types of signals like voice, video and the data.

The following three aspects shows the major form of characteristics in the WANs:

• To provide the bandwidth to large sort of geographical areas various number of serial connections of various different types are used in the WANs.
• Devices which are separated by wide geographical areas are connected by the WANs
• Various services of carriers mainly as network providers, satellite systems, cable companies and telephone companies are used by the WANs.

To share the data in a home group network in an office of large circuited WAN is mostly used in communicating or sharing the data to the desired person.

WAN Communication Link Options:

Depending on the total number of data transmissions which are required in for the WAN they are accessed in a so many number of ways.

The following diagram shows the WAN connectivity and its options:

In WAN there exists of two major categories in the communication links they are switched and dedicated and with each type of categories single individual types of communication is existed and as follows:

• Circuit- switched communication links: Between the receiver and the sender their established a dedicated sort of virtual connection in for the data or voice by the circuit switching. There need to establish connection throughout the network of the service provider before the actual communication is started.

• Dedicated communication links: when there is a requirement in the permanent dedicated connection, then there was uses the point-to-point lines with various other form of the capacitors and user who are willing to pay for those dedicated lines and the limitations are underlying in the physical facilities. In the point-to-point connection the WAN helps to communicate among the customer and the provider network which are in the remote areas. They are also called as the leased lines because they are actually leased from a carrier.

• Packet Switched Communication Links: Due to fluctuate in the data flow and so many WAN users will not make any sufficient use of the switched, dedicated or in the permanent circuits of the fixes bandwidth. To make the service to the users the communication providers have the networks in the data. The data is transmitted through the packets, frames, or cells in the packet- switched networks.