| Bolt Beranek and Newman Inc. Specifications for the interconnection of a host and an IMP. Technical Report No. 1822, Cambridge, Mass., December, 1981. |
....oldest and most widely known form of the argument concerns acknowledgement of delivery. A data communication network can easily return an acknowledgement to the sender for every message delivered to a recipient. The ARPANET, for example, returns a packet known as Request For Next Message (RFNM)[1] whenever it delivers a message. Although this acknowledgement may be useful within the network as a form of congestion control (originally the ARPANET refused to accept another message to the same target until the previous RFNM had returned) it was never found to be very helpful to applications ....
Bolt Beranek and Newman Inc. Specifications for the interconnection of a host and an IMP. Technical Report No. 1822, Cambridge, Mass., December, 1981.
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