Does Kurento supports iceRestart from client?

[Hemrajsinh Gharia]

• Operating system (Ubuntu 16.04, 18.04, etc.) --> 20.04
  
• Installation method (apt-get, Docker, AWS, build from sources) --> apt-get
• Kurento version --> 6.13.2

It seems RTCPeerConnection  support iceRestart. We have a use-case where a session keeps active for 5-6 hours and there are chances that a user may switch to another network (e.g. from wifi to mobile tethering). In such case, the previously shared ICE is no more valid and streaming is broken. From browser there is an option to restart ICE as shown at https://developer.mozilla.org/en-US/docs/Web/API/RTCOfferOptions/iceRestart and https://w3c.github.io/webrtc-pc/#dom-rtcofferoptions-icerestart 

But what will happen on kurento server-side if I share new ICE candidates to already negotiated WebRTC endpoint? Is it supported? And if yes, then will previously shared candidates will be discarded from endpoint?

Thanks

[Juan Navarro]

No, sorry, we never got to implement ICE restart for Kurento WebRtcEndpoint. For now (also what OpenVidu does) the best action is to reestablish the WebRTC connection if some critical parameter changes in the client.

--
Juan Navarro
Kurento maintainer & developer
@j1elo at GitHub, Twitter

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