3.1.5.1.2 Constructing SQM Sections
The client constructs a SQM section as follows:
The client constructs the SQM sections as specified in section 2.2.4.2.
The client computes the overall length (in bytes) of the SQM sections.
The client computes a checksum of the SQM sections. The client and server SHOULD use the same checksum algorithm so that the server can validate the message stream.
The client computes a count of the SQM sections.