Streaming video CDN functions¶ Actual CDN version CDN 1.0 CDN 2.0 CDN 2.1 CDN 2.2 CDN 2.3 CDN 2.4 CDN 2.5 CDN 2.6 CDN 2.7 Choosing a protocol to transfer media data within CDN DTLS support for WebRTC between CDN servers Network traffic flow between CDN servers behind NAT Stream publishing to CDN servers restriction CDN nodes name resolution