With networking, the Internet and other emerging industrial business scenarios are emerging, the network is facing open, integrated, intelligent, personalized and other needs. In SDN climb into the stable phase, when it is not fully landed to SD-WAN (wide area network software-defined) represented a new generation network technology is innovative sections from. SD-WAN gradually become a hot spot.
So how do you define SD-WAN, it SDN what does it matter?
Have a common legacy SD-WAN and SDN, starting from the separation of the control plane and data plane. Both are designed to run on commodity x86 hardware, both can be virtualized and support other virtual networking features (VNF) integration, such as security or WAN acceleration. But definitely not the same thing.
SDN and SD-WAN: understand the difference
While both options are designed to run on the same type of hardware and can be virtualized and extended to provide security or WAN acceleration and other additional features, but they are definitely not the same. As described above, in the internal operation SDN focuses the LAN, and SD-WAN routing application to a wide area network (WAN), connected to a position geographically dispersed organization.
Other differences include:
• SDN programmed by the customer or user, and SD-WAN programming process by the supplier. This saves time and eliminates the complexity of the end user.
• SDN by the network functions within a closed system virtualization enabled and SD-WAN routing can provide application virtualization or run on SD-WAN equipment.
• SD-WAN routing system based applications, compared with the SDN essential Multiprotocol Label Switching (MPLS), can achieve higher performance and lower cost per megabyte byte quality through consumer-grade broadband Internet use.
In short, SDN and SD-WAN are two different technologies, designed to achieve different business objectives. Although small and medium businesses often use SDN in its centralized location, but SD-WAN is seeking to establish interconnections between large companies use in their headquarters and external locations.
SD-WAN advantages
compared with conventional solutions, earnings SD-WAN brings very real, there is an advantage in terms of cost, performance, availability, etc., their return on investment is very clear and precise. SD-WAN advantages are mainly reflected in the following three points.
First of all, can enhance the corporate WAN connection performance. Edge network device to access and manage the Internet, dedicated line / MPLS and other network connections, select a link in accordance with the application requirements for delay, jitter, throughput intelligence.
Secondly, it is possible to enhance connection reliability. SD-WAN manufacturers of high-quality private network operators with multiple route optimization and redundancy features, both ends of the connection as long as there is a path available, enterprise application traffic will not be interrupted. The whole network redundancy mechanisms to maximize the protection of the reliability of the connection.
Finally, SD-WAN flexibility, and can be delivered quickly. When companies start of the project, it can quickly establish a reliable network connection; at the end of the project to close the network services. Business as long as there is an Internet connection can instantly access SD-WAN network operators.
SD-WAN and SDN contrast to conventional solutions, the advantages are obvious, is expected to SD-WAN market application rate in the coming years will continue to grow, providing a stable and reliable network link environment for the industry, for the user to create the ultimate cloud experience, providing Internet service experience better