The IT ecosystem has quickly evolved moving from legacy Hub-and-Spoke Architecture to cloud-based services, which require new ways to design efficient networks by emphasizing new paradigms:
Every company must consider SD-WAN in their approach whether they are thinking about it, are in the process of migration or have already migrated to the cloud. New needs require new concepts and practices.
Expensive, complex and inefficient
Traditional networks are based on expensive private lines that takes long time to be provisioned and are complex to be configured and set up. Often the operators takes months to provision a low bandwidth MPLS line and only experts network can set it up in the enterprise ecosystem with long CLI based Instructions.
To obtain minimum flexibility a single transport layer is used but the dependence from the provider is very high.
The cloud is the network
SD-WAN uses several transport layers including Lan and Mobile Internet that are cheaper than MPLS lines. They are also very quick and easy to set up. The “zero touch provisioning” is based on highly automated process. It takes only 2 minutes to configure and deploy the network without any need or presence of engineer skill to make it work.
VMware SD-WAN by VeloCloud is a cloud based architecture that concentrate on simplicity and performances. Its own overlay routing algorithm takes real time decisions, packet by packet, that take few hundreds milliseconds to be executed. Real time traffic sessions are not dropping even in case of major line issues and bandwidth burst are served aggregating multiple links with the result of a top class user experience. Branches can connect directly to cloud applications using SD-WAN overlay benefits and optimizations strategy for directing branch-to-cloud high performances user experience.