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Is OpenConnect a CDN?

Published in Content Delivery Network 3 mins read

Yes, Open Connect is indeed a Content Delivery Network (CDN).

Understanding Open Connect as a CDN

Open Connect is a specialized content delivery network developed and operated by Netflix. Its primary purpose is to efficiently deliver Netflix's vast library of TV shows and movies directly to its subscribers. By utilizing its own CDN, Netflix aims to enhance streaming quality, reduce operational costs, and manage internet traffic more effectively.

How Open Connect Functions

As a CDN, Open Connect works by storing copies of Netflix content closer to its users. This is achieved through a network of servers strategically placed within Internet Service Providers' (ISPs) networks and at major internet exchange points around the globe.

Key operational aspects include:

  • Content Caching: Rather than streaming content from a centralized server far away, Open Connect Appliances (OCAs) – the servers that store Netflix's content – cache popular titles at various locations. When a user requests a show, it's delivered from the closest available OCA.
  • Direct Peering: Netflix collaborates directly with ISPs, integrating OCAs deep within their networks. This direct connection minimizes the distance data needs to travel, significantly reducing transit costs and improving delivery speed.
  • Traffic Optimization: By delivering content locally, Open Connect reduces the burden on general internet traffic, helping to avoid congestion and ensuring a smoother viewing experience for users. This also helps Netflix manage its significant bandwidth consumption without incurring high fees from third-party networks.

Benefits of Open Connect

The development and deployment of Open Connect offer several critical advantages for both Netflix and its subscribers:

  • Improved User Experience: Viewers benefit from faster loading times, reduced buffering, and higher video quality, even during peak usage hours.
  • Cost Efficiency for Netflix: By owning and operating its content delivery infrastructure, Netflix avoids paying substantial fees to third-party CDN providers, leading to significant cost savings.
  • Enhanced Control: Netflix gains greater control over content delivery, allowing for specific optimizations tailored to video streaming and rapid deployment of new content.
  • Network Performance: It helps ISPs manage their networks more efficiently by localizing Netflix traffic, leading to overall better internet performance for all users.

Open Connect vs. Traditional CDNs

While Open Connect functions as a CDN, it differs from traditional, general-purpose CDNs in its scope and ownership.

Feature Generic CDN (e.g., Akamai, Cloudflare) Netflix Open Connect
Ownership Independent third-party service providers Owned and operated exclusively by Netflix
Content Type Diverse (web pages, software, images, video) Primarily Netflix TV shows and movies
Purpose General content distribution, security, acceleration Optimized for high-volume video streaming
Integration Typically client-side integration Deeply integrated with ISP networks globally
Monetization Charges clients for content delivery services Internal cost-saving and performance improvement

The Strategic Importance of Open Connect

Netflix's investment in Open Connect is a strategic move that underscores the company's commitment to delivering a superior streaming experience. It highlights the importance of controlling the entire content delivery pipeline, from content creation to final delivery, to maintain quality, manage costs, and scale effectively in the highly competitive streaming market.

For more information on Content Delivery Networks, you can refer to the Wikipedia page on Content Delivery Networks.