Remote Procedure Call - Protocol Identifiers Previous section. This appendix defines the protocol identifiers that are used in protocol towers.
Companies can assign their own values by using their OIDs.
An octet string derived from an interface UUID combined with a version number. Octet 0 contains the hexadecimal value 0d. This is a reserved protocol identifier prefix that indicates that the protocol ID is UUID derived. Octets 1 to 16 inclusive contain the UUID, in little-endian format. Octets 17 to 18 inclusive contain the major version number, in little-endian format.