Once the technology has been deployed, it’s easy to extend the SD-WAN to cloud providers and grant secure traffic offload as well as end-to-end Quality of Experience for those cloud applications (think AWS, O365, Azure etc.). The software defined nature of the technology makes the connection easy, offering organizations some unexpected benefits, including the ability to audit a cloud provider’s bandwidth usage invoice, managing remote access to cloud applications and allowing the CISO to sign off on moving an application to the cloud (as a result of the managed private network service extended to the cloud provider via SD-WAN).
There is also a fit for SD-WAN at those locations where big bandwidth is needed and T1s are not in the budget. Multiple low cost links can be aggregated for combined bandwidth and service levels can be achieved using the technology.
Where SD-WAN is headed
All of these business concerns and added benefits are driving SD-WAN deployments forward, but it’s important to look at the big picture. There is a significant leap coming as SD-WAN, SDN, NFV and vCPE all move quickly towards a unified management and deployment scheme. SD-WAN is the beginning of the movement as there are the most obvious gains available (bandwidth, price, business continuity, security and application layer management).
This shift will mean virtual network micro-segments being deployed in data centers today will be easily extended to office LAN environments and remote users providing application specific networks. Firewall and security schemes for applications will be supported by a unique network segment per application. As hyper-convergence continues, these virtual networks and applications can all live in the same infrastructure.
SD-WAN is a game changing technology in the network services world and is the first step towards fully unified cloud, WAN, LAN and remote access solutions.
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