Elementary data link protocols
Assumptions:
- Physical, data link layer and network layer engage in “peer to peer” communication, i.e., each layer has physically independent proc.
- Machine A sends data to machine B using a reliable connection oriented service. Also we will consider the case where B wants to send to A simultaneously.
- A has ‘infinite bit bucket’, i.e., no waiting for data production by Network Layer - i.e., data is always available.