# What is the difference between Agora Live Interactive Streaming and common CDN + RTMP technologies? (/en/api-reference/faq/product/differ_agora_cdn)

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Most CDN + RTMP technologies for live streaming allow users to watch the live steaming in a web browser, which lowers the audience's threshold.
Agora provides a solution for SD-RTN™, host, and audience to have the same real-time communication quality as an individual line with:

* Private voice and video coding
* Private transport protocol
* Private node deployment
* Private transmission algorithms

See the following table for details:

| Feature                     | CDN + RTMP        | Agora Live Interactive Streaming                                                                                    |
| --------------------------- | ----------------- | ------------------------------------------------------------------------------------------------------------------- |
| Video Encoding and Decoding | H.264             | Private                                                                                                             |
| Audio Encoding and Decoding | AAC               | Private                                                                                                             |
| Transport Protocol          | TCP based on RTMP | Private protocol based on UDP                                                                                       |
| Transmission Algorithm      | TCP               | Private algorithm for fixing packet loss and adjusting the bitrate automatically according to the current bandwidth |
| Picture-in-picture layout   | Fixed             | Can be adjusted dynamically                                                                                         |

Agora also enables the function of publishing streams into the CDN for social media sharing.