3. Protocol layer

This section specifies how SECoP servers and clients communicate with each other, and how the protocol messages look when transferred over a connection (“on the wire”). This is mainly of interest for implementors of new clients and/or servers, users of frameworks will find the Semantic layer more relevant.

• 3.1. Transport
  • Data transfer
  • Transfer modes
  • Operation
  • Handling timeout issues
  • SECoP over WebSockets
• 3.2. Messages
  • Naming conventions
  • Custom messages
• 3.3. Complete message syntax
• 3.4. UDP discovery protocol
  • Format of the packets
  • Node self-announcement
  • Example
  • Implementation hints