In September 2016, DAHO Networks, a startup focused on SD-WAN, and the leading cloud data center operator in the country jointly announced that it is the first commercial SD-WAN cloud network integration solution in China. CanalON (Canal Open Network) was successfully launched, and the first to realize the application of SDN architecture to the interconnected wide area network of dozens of urban data centers nationwide, this is China’s largest online software-defined data center wide-area network.

SD-WAN is undoubtedly the most interesting application of SDN technology in 2016. It is designed to help users reduce WAN expenses and improve their connection flexibility. It is another important SDN deployment business scene after SD-DCN commercialization. Validated in Google’s global DCI network.

However, the application of the SDN architecture to the operational network is still facing many problems. Some even say that SDN has become a technical term of abuse. There are only a handful of actual commercial cases. In the field of SD-WAN, although there are many new and old suppliers entering the market, the actual deployment situation this year is still very limited, especially in the production network of the national wide-area network. difficulty.

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In order to solve the above problems and challenges, people have focused on SDN. It is hoped that software configuration and management will be more flexible and adaptable through software. With SDN, all network configurations are centralized on storage and management, and devices can be programmed on demand, simplifying hardware and reducing management overhead. Originating from the data center, SDN successfully demonstrated the benefits of developing automated management network software.

But in complex environments, such as load balancing, firewalls, intrusion detection, and wan acceleration, the IT team found that reproducibility in the data center was difficult to manage, not to mention adding a layer of wan connectivity. The Wan connection service is usually purchased from a service provider. The service provider has its own management structure and may have corresponding countermeasures for different capacity, bandwidth and location. Many customers have begun deploying Internet-based VPN solutions to replace the MPLS lines that are needed by extremely sensitive business customers.

Then, if you use SD-WAN, combined with the service provider’s technology, architecture and service products to build a transparent enterprise IP network, you can also add some advanced network features such as application-based routing or custom security requirements, while maintaining Optimizing network functions based on SLA is an ideal way.

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The 5G licenses of various countries have been issued one after another, and the demand for big data computing has been warmed up. Telecoms and enterprises have paid attention to the new-type network construction. The software-defined WAN (SD-WAN) demand is entering an outbreak period. Each show will welcome the wave of network transformation.

Looking at Taiwan’s two major SD-WAN layouts, the active Netcom operators and Ruiqi, the stand has cooperated with more than half of the major telecom operators, and Raychem has held 700 million yuan in cash planning and acquisition.

What is the relationship between 5G business and SD-WAN? Why have you been locked in by Netcom in recent years? In the past, the traditional telecom equipment was built, the investment cost was high, and it was not easy to modify after the construction. Therefore, it is often necessary to make a complete functional plan at the initial stage of construction, and the investment for expansion is also expensive; the software-defined network (SDN) can be used. Virtualized machine and software modification service functions, hardware investment costs are reduced, and expansion flexibility becomes higher.

Japan Lotte Telecom grabbed the 5G license and built the infrastructure with Software Defined Network (SDN). Rakuten has established a brand new 5G telecommunications network in Japan for a short time, which is 40% lower than traditional telecom operators. It can be cheaper, faster and more reliable. It breaks the monopoly of Japan Telecom and relies on software-defined network architecture. Lotte has also screamed the goal of 10 million customers for 9 years.

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Broadband connection physical hardware equalization strategy device network engineering technology architectureDifferent WAN technology
software-defined networks (SDNs) play an important role in reshaping the wide area network (WAN). Therefore, other WAN technologies (such as virtual WANs and hybrid WANs) are often erroneously confused with SD-WAN. While virtual and hybrid WAN technologies have similar goals to SD-WAN, there are important differences to keep in mind when choosing a solution.
SD-WAN
SD-WAN is based on the principle of SDN, an architecture that allows centralized control of network behavior using an application programming interface (API). Applying the SDN principle to WAN technology can help connect enterprise networks by determining the best way to route traffic to and between data centers and branch offices. It also provides an affordable alternative to expensive routing hardware.
VWAN
vWAN is a branch of SD-WAN. The technology is aimed at businesses that want to replace broadband connections with private WANs. The vWAN is used as a local product, including a mix of physical and virtual devices that are launched on the WAN node.
In addition to providing broadband connectivity, encryption is also used to protect vWAN traffic, which involves converting text to code to prevent unauthorized access. In addition, the technology aggregates WAN links, including broadband, allowing multiple public network links to act as one large link. The vWAN can also load balance across multiple communication channels, depending on the state of the links that make up the large link.

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