In this era of globalization, fast networking and collaboration has become extremely critical to enterprises. This is where WAN Optimization comes to the rescue. WAN optimization is a set of techniques and methods for efficient data transfers over the Wide Area Network (WAN). WAN performance plays a vital role in a company’s ability to communicate, collaborate, compete and excel globally.
WAN optimization benefits the enterprise in many ways. It compresses bandwidth, optimizes protocols, eliminates transmission redundancy and improves the quality of business services. Data transfer speeds between site locations – headquarters, branch offices, data centers and cloud resources – can also be dramatically improved. WAN optimization enables enterprises to meet strategic IT goals such as data center consolidation to centralize applications, back up, storage and server hardware while enabling globally distributed business users fast access to enterprise applications and cloud resources. A strong and well-managed WAN optimization solution increases employee productivity and improves business processes enabling companies to grow faster and be more competitive.
WAN optimization benefits:
De-duplication eliminates the transfer of redundant information by keeping just one copy of the information without resending multiple times. It helps to reduce the storage cost as fewer disks are needed.
Data compression saves space and reduces the transmission time. Also referred to as source coding, the information is encoded with the help of encoding strategies and methods. When one shares information through the WAN, it ensures that the information is compressed into the smallest possible size before sending.
Another technique which is used to reduce bandwidth usage and server load is called caching. It caches the documents on the web to improve the quality of services for other Internet users. It also minimizes network traffic while improving faster access to information.
In order to control the errors while the data is transmitted, the forward error correction detects and corrects the errors without any retransmissions. The technique of FEC is applied or used when the process of retransmission is costly or is supposed to be broadcasted to more than one destination.
WAN bandwidth optimization mainly has three components which are caching, compressing and management of traffic. Other techniques and ways to ensure an efficient and effective business network are media multi -casting, hypertext transfer protocol over SSL which is also called as HTTPS proxy.
Traditional WAN optimization appliances offer TCP optimization based on single-segment architecture. They communicate with each other across the enterprise WAN and tune their parameters based on a worst-case setting of the network in terms of latency and bandwidth.
New multi-segment TCP optimization addresses characteristics specific to each segment of a Point of Presence – from headquarters to the nearest POP (high bandwidth, low latency link), from POP to POP (high bandwidth, high latency link) and from POP to the nearest remote location (typically a low bandwidth, low latency link). A multi-segment architecture that offers TCP optimization leads to higher overall performance.
Industry standard Quality of Service (QoS) across the network gives required priority to real-time traffic such as voice, video and thin-clients. QoS implementation allows for weighting, prioritizing and reserving traffic within five classes of service. This allows enterprises to prioritize business-critical applications over other data traveling across the network, guaranteeing a certain level of performance.
Aryaka is the worlds first cloud-based WAN optimization and application acceleration company solving application and network performance issues faced by the distributed enterprise. Aryaka simply and affordably resolves latency, bandwidth and packet loss issues.