with WAN optimization controllers, enterprises can maximize their inherent scalability and performance without disrupting the customer experience or exposing mission-critical data.

1. Reduce Remote Application Response Time with WAN Optimization Controllers
Wikipedia defines WAN Optimization Controllers as “a collection of techniques for increasing data-
transfer efficiencies across wide-area networks.” The different optimization techniques include
compression, latency optimization, forward error correction, caching / proxy, deduplication, traffic
shaping, application acceleration, network acceleration equalizing, protocol spoofing, network
optimization, connection limits, and simple rate limits. Let’s look at some of these techniques to fully
understand WAN optimization.
 Compression: It refers to compression techniques similar to ZIP, RAR, ARJ etc. These are applied
on the fly to data passing through hardware (or virtual machine) based WAN acceleration
appliances.
 Protocol Optimization: It refers to the use of in-depth protocol knowledge to accelerate user
response time.
 Network Optimization: This technique helps to keep a network operating at peak efficiency by
identifying and resolving data flow barriers.
 Caching: A technique that speeds up certain computer operations by temporarily placing data,
or a copy of it, in a location where it can be accessed more rapidly than normal.
 Traffic Shaping: This technique helps to control data flow for specific applications so that
important applications can be given precedence over the WAN.
 De-duplication: It eliminates the transfer of redundant data across the WAN by sending
references instead of the actual data.
 Latency Optimization: It includes TCP refinements such as window-size scaling, selective
acknowledgements, Layer 3 congestion control algorithms, and even co-location strategies in
which the application is placed in near proximity to the endpoint to reduce latency.
Hence, enterprises must invest in a good WAN optimization appliance that accelerates any type of WAN
traffic and excels at maximizing the performance of business-critical enterprise applications.
The following are some of the benefits of deploying a best of breed WAN optimization controller.
 Reduces remote application response times and bandwidth utilization by more than 95%
 Scalable appliance options supporting from 512Kbps to over 300Mbps
 Saves up to 60% in TCO for WAN optimization over 3 years vs. alternative solutions
 Up to 98% improvement in perceived throughput and end-user experience
 Reduces usage cost of cellular connectivity where users are charged for consumption
 Acceleration blueprints reduce application response times by greater than 95%
 Improves RTO and RPO and increases backup frequency to reduce risk of data loss
 Reduces full data replication times by up to 97% and incremental replication times by up to 94%
 Decreases bandwidth requirements and costs
Thus with WAN optimization controllers, enterprises can maximize their inherent scalability and
performance without disrupting the customer experience or exposing mission-critical data.
Also read about : Application Performance