What Layers of the OSI Model does TCF address?
In terms of the OSI Model, TCF addresses layers 5 – 7: reliable end-to-end transport is currently assumed to be available from underlying carriers. TCF cares for (5) Session Layer – Interhost communication; (6) Presentation Layer – Data representation and encryption through JSON; (7) Application Layer – TCF Services can be seen as Applications. Determining on where TCF will be applied, it could also provide services for the (3) Network Layer – Path determination and logical addressing (IP) as well as the (4) Transport Layer – End-to-end connections and reliability (TCP) in the future, simply by implementing the TCF “Channel” abstraction with such lower level transport services as well.
