CDN, the full name of Content Delivery Network (Content Delivery Network), is an intelligent virtual network built on the basis of the existing network. Content (such as static files, video, audio, etc.) is delivered to the server closest to the user for processing, thereby accelerating the transmission and loading speed of content and improving user experience.
A CDN usually consists of multiple nodes, which are distributed all over the world and interconnected with each other through high-speed networks to form a huge network cluster. The content requested by the user will be cached on the nearest node to respond to subsequent requests faster.
CDN has the following positive impacts on the foreign trade industry:
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Improve website access speed: Since websites in the foreign trade industry often need to provide services across national borders, slow speed of multinational websites is a common problem. By deploying a CDN, the static resources of the website can be cached on the CDN node, so that users can obtain resources nearby, thereby improving the access speed of the website and improving the user experience.
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Improve the access experience of overseas users: The foreign trade industry needs to face users from all over the world. CDN can allow overseas users to access website content faster, thereby improving their access experience.
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Reduce server pressure: Since CDN can cache website static resources on distributed nodes, it can reduce server pressure and reduce the risk of server downtime, thereby improving the stability and reliability of the website.
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Improve SEO: Search engine optimization is one of the important ways for the foreign trade industry to obtain traffic, and website speed is one of the important factors for search engine rankings. By using CDN to accelerate website access speed, the ranking of the website can be improved, thereby bringing more traffic and sales opportunities.
When CDN and SD-WAN are used together, CDN can cache enterprise applications and data, while SD-WAN can provide faster and more secure network connections, further improving application performance and user experience.
The combination of CDN and SD-WAN can be realized in the following ways:
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CDN as SD-WAN edge node: Deploy CDN on the edge node of SD-WAN to achieve faster content delivery and more efficient bandwidth utilization. This approach can reduce the cost of CDN deployment while providing better network security performance. Deploy CDN servers on edge devices of the SD-WAN network, such as SD-WAN routers or edge switches. The purpose of this is to bring the CDN server closer to the end user, thus speeding up content delivery and improving user experience.
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SD-WAN optimized CDN: optimize the performance and reliability of CDN through SD-WAN intelligent routing, load balancing and bandwidth management functions. This improves the quality and availability of the CDN while reducing the risk of network failures.
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CDN accelerates SD-WAN: By deploying CDN nodes globally, it accelerates the content distribution of SD-WAN applications and services. This improves user experience, reduces latency and the risk of network congestion, while improving SD-WAN reliability and performance.