Network junctions (5)
I believe the answer is:
nodes
'network junctions' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nodes that I've seen before include "Components in a computer network" , "Network intersections" , "End so (anag)" , "Small knob-like swellings" , "Swellings or knotty masses" .)