#sd-wan optimization

The Wide Area Network is mainly concerned with connecting users to its applications and routing data over long distances with connectivity for collaboration among enterprise users, clients, and stakeholders among distributed geographical locations.

 While disaster recovery of important data even exists today, however, the explosion of cloud services and inflexibility of multi-protocol label switching MPLS networks has forced to rethink enterprise WAN optimization as cloud applications became more pervasive throughout today's enterprises, there is also a dire need for enterprises to operate at cloud speed by 2018.

 SD-WAN Optimization Benefits

It is also predicted that SaaS(Software as a Service) will become the dominant model for consuming application functionality for approximately 80% of all organizations likely to result in the loss of visibility and application control by the IT team, But it would be good if we could use the Internet to augment MPLS and cut 60 percents of the costs.

 Switch carriers replace MPLS with Broadband simplify branch connectivity and deploy a branch in minutes, By transitioning to SD-WAN, enterprises can reduce their dependency on expensive MPLS connectivity by the creation of a virtual LAN overlay and customers do not have to overhaul any existing when investments rather they can gain quality when accessed via any available data service like broadband, 3G, 4G or MPLS.

 Instead of paying high-cost MPLS, users can now access comparatively lower cost bandwidths by being able to rapidly connect with any available network service be it broadband, 3G, 4G which further ensures that connectivity decisions can be made independently which help enterprises avoid delays and provide faster branch deployment. Also, Security buyer encryption and WAN hardening secure branch offices, PCI compliance is achieved through traffic segmentation and no unauthorized is allowed to enter the branch.

 Thus, SD-WAN puts each of your branches closer to your cloud and SaaS applications and gives you the ability to have a single view over your whole network. SD-WAN Optimization enhances up to 50 times data transfer efficiency, and optimization benefits packet loss recovery up to 1%, with a latency rate reduction to 150 ms and jitter to 10 ms.

It is a general misconception among many people that WAN optimization and WAN acceleration applies the same technology. They can both be termed as the “application acceleration”, but mistaking them for being synonyms is not the right approach. This confusion arises mainly because the ultimate goals of both the technology are somewhat similar. Some of them have been listed below:-

• Improved network and resource utilization

• Better end user experience; and

• Maximized network performance

The main difference between the two lies in their methodology and how they are being used by the operators to get the desired results.

WAN optimization mainly provides a generic blanket or to say a higher level of optimization. The main reason behind this feature is that it focuses on network and transport layer protocols through the means of SSL sessions. Many major companies opt for the DRE product line as it includes selective acknowledgments, larger window, and buffer sizes. Apart from more this it also provides assistance in improvement on slow starts and the congestions mechanism.

On the other hand, Application acceleration is more devoted to the lower layer of the OSI model, mainly the application layer and provide only certain improvements. Another important aspect of WAN acceleration is that it may not have been designed to be used outside of a LAN. It mainly removes the excess chatter from the file transfer protocol mainly CIFS. But certainly WAN acceleration has many hidden benefits that have been listed below:-

•    Provide LAN-like performance for mobile employees, anywhere

•    Grow without paying for additional bandwidth

•    Provide faster connectivity for branch offices

•    Speed data backups across the network

At last, it all depends on your need and requirement as to which application should be installed. Performance of both the technology speaks for themselves.

WAN optimization is only focused on improving the performance of an individual connection, and on the other hand SD-WAN gets you the best of both – individual and overall network. In more general terms, SD-WAN addresses the issues that are connected with MPLS networks. SD-WAN is really significant in areas like network edge, the trade-off of cost, availability, and performance are very much relevant.

• Cost: If you are looking for a better alternative with the best price, SD-Wan is your choice as it uses the lower cost internet circuits. This allows the organizations to be much more flexible than the expensive MPLS.

• Capacity and Performance: No doubt as to the technology advances, so does it features. With SD-WAN you get more capacity to hold data at the specific locations. This means that businesses can easily aggregate multiple low-cost internet connections with much more capacity. It routes the traffic across the optimum connection based on application requirements and real-time loss.

• Cloud access: One of the most beneficial features of SD-WAN optimization is that these can be linked to the cloud database. Unlike the MPLS which are only designed for the branch-to-datacenter traffic.

SD-WAN is getting into the mainstream as it is being adopted by many enterprises. There is no doubt that currently one-third of the enterprises are trailing or currently employing this technology. Many service providers who get the hang of this technology moves a step-forward with making it a versatile tool for their broader platform, services and architecture plans.

If the system is installed properly, it can cover many other sectors and benefit in the overall structuring of the network. SD-WAN if works as an integral component at the provider’s platform. They can provide services flexibility options like of on- and off-net, public internet, and private IP sites to a common fabric, and it optimizes the performance of application delivery, including optional WAN optimization