Wide area network is used to transfer data over long geographical areas. When the information is carried over longer distances it has to pass more physical and logical environments. In order to develop a WAN one has to use the services of the ISPs. The working of the WAN technologies is limited to the physical layer, data link layer and the network layer of the OSI model.
Types of WAN Technologies
There are number of WAN technologies like point to point connection, circuit switching and packet switching. The WAN communication which is carried over a leased line is called point to point connection. In a point to point network the message from the customers end is traveled to the remote user via an ISP. Circuit switching is the data communication which is stared when there is need to communicate and it is terminated afterwards. It is like a telephone call. When the two users arte connected and identified, the data is transferred in other words voice is transferred. When the transmission of the data is complete the call is disconnected again. Packet switching data network is a WAN technology in which the network of the user is established in the carrier’s system. The examples of packet switching network include asynchronous transfer mode (ATM), switched multi megabyte data services (SMDS) and frame relay.
The purpose of WAN optimization is to eliminate the flaws in the packet data transfer in shared WAN systems. There are many techniques of optimizing the WAN technology. These optimization techniques include duplication, compression, cashing, protocol spoofing, traffic shaping, equalizing, connection limits and simple rate limits. The process of duplication sends a reference of the actual data, this helps in preventing from data redundancy. In order to present data patterns in an efficient manner compression is used. The process of caching reduces the bandwidth up to 30%. The multiple requests are tied in one bundle using protocol spoofing. Traffic shaping controls the amount of data handling and also monitors and guides the data traffic. When the data is sent according to the priority of the data usage it is known as equalizing. Connection limit averts from the access grid locks in access points and routers due to the lack of service or peer to peer connection. Simple rate limits the users from getting more than the data which has been fixed for their use. The purport of WAN optimization is to overcome the difficulties such as expensive bandwidth and to decrease the user’s experience time. The scalability of WAN is nowadays an important consideration and hence WAN optimization is used to target such issues as well.
Benefits of WAN Optimization
WAN optimization offers increased data throughput and fast network response time. This system has helped people using centralized cloud systems and save a lot of money. The WAN optimization can deal with the problems of increased user experience and scalability. User experience is the term referred to the response time of user and the application. The WAN optimization helps to reduce data thus providing quality of service and Latency and loss mitigation. The use of WAN optimization can help in improving the performance of the network. The WAN optimization has enabled the users to move the network in a centralized network with an accelerated WAN network. WAN network removes the need for additional hardware capabilities in order to improve the system. Moreover this system helps in effective disaster handling. The possibilities like streamlining protocols, eliminating data redundancy, prioritizing data and tagging the data in local caching have improved the working of the WAN as a whole