Since the inception of computer networks, there has been a continuous evolution through various developmental stages. Global SD-WAN, as a new trend in network development, addresses the contemporary needs of enterprises for efficient, flexible, and cost-effective networking solutions.

I. Evolution of Networking

(1) Initial Stage: Dedicated Line Networks

From the 1980s to the early 2000s, leasing dedicated lines was the prevalent circuit technology, connecting each site through carrier networks to dedicated virtual circuits.

Setting up, maintaining, and configuring dedicated lines incurred high costs. Additionally, creating circuit routes required substantial resource and time investments, consuming a significant portion of enterprise budgets.

(2) Mid-Stage: MPLS Networks

In the early 21st century, network engineers introduced MPLS designed to operate on IP networks. The aim of MPLS was to help organizations save costs on service provider networks. Using packet labeling and exchange technologies along predefined paths, MPLS optimized bandwidth usage, thereby reducing operational and maintenance costs.

(3) Current Stage: SD-WAN Technology

Despite MPLS being the enterprise standard for years, the growing demands of WAN now require more flexibility. With businesses shifting towards cloud-based services, some applications need to be transmitted over public networks beyond corporate data centers.

Cloud technologies demand innovation to achieve secure and intelligent transmissions while keeping costs at reasonable levels. Global SD-WAN, as a relatively new cloud-ready solution, meets the contemporary networking needs and provides the efficiency required to enhance the user experience for enterprises.

II. Advantages of Global SD-WAN

Compared to traditional dedicated lines and MPLS networks, global SD-WAN presents unique advantages.

Firstly, global SD-WAN adopts an innovative network architecture, achieving SDNization of the control layer. By decoupling the network collaboration layer from the controller, global SD-WAN centralizes control over network resources and facilitates rapid scheduling, offering enterprises more flexible networking services.

Secondly, international SD-WAN restructures products and business processes. Through integration with BSS and OSS systems, international SD-WAN achieves automated business activation, improving business delivery efficiency. International SD-WAN explores new business models, supports customer self-service, and introduces innovative features like elastic billing for dedicated line bandwidth.

Lastly, international SD-WAN realizes the synergy between cloud applications and network services, automatically adjusting network bandwidth to meet the capability of on-demand customization “pipelines.” This allows businesses to flexibly address different business and application needs, achieving intelligent operations.

In conclusion, for enterprises seeking to enhance user experience, international SD-WAN is undoubtedly an advanced solution worth considering. If you are interested in global SD-WAN, feel free to contact Ogcloud anytime for more information.