[Meta] Performance data for discovery protocols about openscreenprotocol

[louaybassbouss]

Maybe we can use these libraries to do some experiments:

• mdns: A Node.js module the can be used to advertise and discover services. I think it uses Bonjour.
• peer-ssdp: A Node.js module provided by Fraunhofer FOKUS which implements the SSDP protocol (without UPnP).

[mfoltzgoogle]

Based on TPAC discussion I'll take an action to share data on the success of SSDP and mDNS "in the field" and in particular how often one succeeds when the other fails. If we break this down by platform, we can guess how often it is a device specific issue versus a networking issue.

[mfoltzgoogle]

At the Berlin F2F I shared reliability data for SSDP and mDNS, and based on that we resolved to make mDNS mandatory for controllers and receivers, and make SSDP a non-mandatory alternative.

The issues to get networking and power benchmarking remain open, so leaving this meta-issue open. It's possible additional data from benchmarking may change the tradeoffs here.

[mfoltzgoogle]

We've already committed to mDNS in the current spec.