The rank code of the sender compared to the receiver is determined in this stage.
The costs of defection can be very large for both senders and receivers.
This form of communication does not require a clear lineof-sight path between the sender and receiver.
The basic drawback of their approach is that even though previously unknown objects are intended to cooperate, senders have to specify destination addresses.
Interestingly, the replier may follow suit if the sender chooses such a serious mode of address.
An agent who receives a fact can transmit it back to the sender, as long as the sender is trusted.
To assess trustworthiness in these terms receivers may scrutinize the statements of senders for their political correctness.
Headers are added at the sender by each layer and removed at the destination.
