Thorough dissection of SD-WAN service

I am Li Wei from Beijing University of Posts and Telecommunications. The topic of my speech today is "The second half of SDWAN: walking with dinosaurs." The previous guests were all talking about specific technologies, starting with Intel and operators' programs in the morning, and many startup solutions for this afternoon. I think that after listening to these programs, there may be a doubt. What exactly is SD-WAN? Including the SDWAN conference last year, there were a lot of speakers and participants, but in the end, this question was not solved. What everyone thinks is the content of the speakers. Although it is very rich, but can not answer this question, what is SDWAN. Today, what I am talking about is not too technical. Why is it called with dinosaurs? Because the SDWAN market was actually the world of startups about two years ago, big operators and Internet giants did not pay much attention to this market. But since last year, the big guys have suddenly exerted their strength on this market and have shown great enthusiasm. In this case, how to make a small company compete with a big company, how to choose your own track, this becomes very important.

　　Nowadays, the most popular technology should be artificial intelligence, 5G and industrial internet. SD-WAN is not a hot technology, or if you let students choose a major in college, they will choose the same three, and will not choose SDWAN. Why are there so many people watching SDWAN?