Indistinguishable WAN with SDN concept architecture

Indistinguishable WAN with SDN concept architecture


Globalization is an inevitable trend in the world of today's global villages. Crossing geographical boundaries, language barriers, and changes in culture and political and economic systems have made everyone in the world voluntarily or forced to influence their way of life. Such a change does not necessarily guarantee that everyone can live better, but the link to the information network makes people more connected but undeniable. Since the information network is an important part of promoting globalization, is there a new design thinking for the wide-area network that connects many cross-site platforms? Can you quickly string together two places and three places in a smarter way? Even the multi-link, further let the user experience as beautiful as the local convenience and fast, will be the direction that business organizations urgently need to think. This article will provide a perspective on the WAN's contingency and future direction by providing a cross-border service business organization perspective to maximize the benefits of information networks and drive overall business benefits.

First, the SDN concept caused by the WAN transformation

In recent years, SDN (Software Defined Network) software definition network is a prominent school, all software and hardware vendors are doing their best to develop their own SDN products, some manufacturers even further combined as a solution Strategic alliance. These signs show that SDN is an irreversible trend as globalization, and only accept changes or be changed in the future. And the spirit of SDN's advertised is indeed practiced in the network deployment, especially for service-oriented data centers, 99% of SDN solutions are in this field. Compared to the user-oriented WAN, it seems that there has not been much innovation in recent years, and it is still a hierarchical network of routers, physical circuits and old technologies. In the absence of major changes, the priority of business organizations is often in the latter stage. The direct impact is not service interruption or business loss, but the information service built by SDN cannot be 100% realized in the user experience. on. It's half the effort, and it's often the best adjective after SDN goes online. In order to achieve a balanced service and user-oriented connection, avoid top-heavy, let SDN be fully utilized, and it is imperative to transform the WAN. Based on the SDN concept, Cisco IWAN (Intelligent WAN), which introduces automation, customization, and software control into the solution, is the most comprehensive. Apply the policy base controller through APIC EM (Application Policy Infrastructure Controller Enterprise Module), let the router complete PnP (Plug and Play) and subsequent security and policy settings at the lowest setting. The Policy-Based design spirit is to follow the SDN Controller operation, only responsible for the router control platform, and does not intervene in actual traffic transmission. APIC EM also has software openness, which can integrate third-party application software or Orchestrator system with REST API to enhance application and network policy consistency.

Read More; mpls vs sdwan