s2s spec: matrix service name already reserved by other usage according to IANA registry #400
Description
Section 2.1 of server-to-server API describes the usage of a _matrix._tcp SRV record to discover the service hostname and port. However the matrix service name is already registered for use with the MATRIX Remote AV Switching protocol, as per the Service Name and Transport Protocol Port Number Registry of IANA.
To avoid conflicts with existing infrastructure, Matrix s2s should use a different service name, examples could be matrix-server or matrix-org. Also, please make sure to register the new service name with the registry to avoid future conflicts.