Difference between revisions of "ARPANET Host-to-Host Protocol"
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Revision as of 18:43, 2 January 2025
In addition to the 14 message opcodes defined in McKenzie, ITS and WAITS knows about these five additional opcodes:
RAS←←17 ; Reset Allocation by Sender. Tells the receiver to
; clear allocations.
RAP←←20 ; Reset Allocation Please. Sent from receiver to sender
; to ask it to send an RAS.
NXR←←20 ; Non-existent Receive link. Tells sender the link it
; used is non-existant (eg, data message).
NXS←←22 ; Non-existent Send link. Tells receiver the link it
; used is non-existant (eg, ALL).
