Vincent Lv2Posted 06 Nov 2019 14:58
  

It's really a good question.
For common WAN optimization, it borns in MPLS age, MPLS is very expensive and small bandwidth
Users need some methods to reduce MPLS costs and improve link throughput, then WAN optimization come,
WANO support de-duplication and compression to reduce traffic enhance link throughput.
Typical product: Riverbed Steelhead series. SilverPeak NX series
With internet rapid growth, internet link become more and more stable and the price is cheap,
Users are doing digital transformation, they need more bandwidth and some service toward to cloud,
so MPLS only network is not suitable for business, users need to use hybrid WAN, MPLS for critical apps, Internet for cloud or other business, SD-WAN coming.
SD-WAN not only support hybrid WAN path selection, also have Zero touch deployment to simplify deployment and unified management and operation features.
Typical product: Riverbed Steelconnect series.  Silverpeak Edgeconnect

For Sangfor WANO integrates both optimization features and common SD-WAN features.
Sangfor WANO = Riverbed Steelhead + Riverbed Steelconnect.
In 2008, Sangfor WANO became a component of Sangfor SD-WAN. One product have WAN optimization solution and SD-WAN solution.

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