Virtualisation is the other area of consideration. Financial institutions should evaluate only WAN optimisation providers with software-based offerings, even if the financial institution is currently interested in hardware. Virtualisation has proven to reduce operating costs and improve IT flexibility. Moreover, while the historical perception is that only hardware WAN optimisation can provide the highest levels of data transfer, current advancements in WAN optimisation have proven that virtual WAN optimisers can perform just as good or better than their hardware equivalents.
Financial institutions that have embraced big data and cloud are poised to take full advantage of software-based WAN optimisation, as they would already have the necessary infrastructure and architecture in place.
Is WAN optimisation able to work with software-defined networks (SDN) and network virtualisation?
Definitely. Silver Peak's WAN optimisation services are software-based and can be deployed on any hypervisor. Silver Peak's Unity software -defined WAN (SDWAN) fabric creates an overlay that unifies the existing enterprise WAN with the Internet and cloud services. Unlike traditional WAN optimisation solutions, Unity correlates information about cloud services and Internet "weather" to intelligently route traffic over a secure, optimal path. And by keeping SaaS and IaaS traffic on the Unity fabric, IT gains an ability it never had: the ability to monitor and control connectivity to the cloud while ensuring consistent performance for all enterprise applications, including SaaS.
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