The version is a single byte that indicate both the direction of the message
(request or response) and the version of the protocol in use. The up-most bit
of version is used to define the direction of the message: 0 indicates a
request, 1 indicates a responses. This can be useful for protocol analyzers to
distinguish the nature of the packet from the direction which it is moving.
The rest of that byte is the protocol version (1 for the protocol defined in
this document). In other words, for this version of the protocol, version will
have one of:
0x01 Request frame for this protocol version
0x81 Response frame for this protocol version
2.1. version
The version is a single byte that indicate both the direction of the message (request or response) and the version of the protocol in use. The up-most bit of version is used to define the direction of the message: 0 indicates a request, 1 indicates a responses. This can be useful for protocol analyzers to distinguish the nature of the packet from the direction which it is moving. The rest of that byte is the protocol version (1 for the protocol defined in this document). In other words, for this version of the protocol, version will have one of: 0x01 Request frame for this protocol version 0x81 Response frame for this protocol version