3.1.4.6 Encoding Record
If the record type the participant read from the protocol stream is not Known Encoding Record or Extensible Encoding Record, it MUST be handled as described in section 3.1.4.2.
If the record type is Known Encoding Record, the participant MUST read the next octet, which contains the message encoding scheme.
If the record type is Extensible Encoding Record, the participant MUST obtain the encoding scheme, as detailed in section 3.1.4.1. The participant SHOULD use a MaxContentTypeSize.<14> If the content type is too long, a Fault Record MAY<15> be sent, and the session MUST be closed.
If the encoding is not supported, a Fault Record MAY<16> be sent, and the session MUST be closed.