3.1.4.11 Sized Envelope Record
If the record type the participant read from the protocol stream is not Sized Envelope Record, it MUST be handled as follows:
If the record type is End Record, the participant MUST notify the higher layer of the receipt of End Record and set Receive Allowed to FALSE.
If the record type is a Fault Record, the session MUST be closed.
Otherwise, it MUST be handled as described in section 3.1.4.2.
The participant MUST obtain the message as detailed in section 3.1.4.1. The participant SHOULD use a MaxEnvelopeSize.<20>
If the message is too large, a Fault Record MAY<21> be sent, and the session MUST be closed.