Selecting one of {TAIL ~ multiple redundant network access points} on {HEAD ~ a node} within an industrial process control network 
Selecting one of { TAIL ~ multiple redundant network access points } on { HEAD ~ a node } within an industrial process control network
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH