  The problem of blocking certain areas of network systems and their boundary
case, which is the granulation of network to a set of isolated zones, is
investigated in the article. The losses that await the system due to blocking
of its separate components are determined, and method for finding alternative
ways of flow motion bypassing the isolated zone of network are proposed. The
granulation process of the network system is reflected as a temporal network
and the losses that await the system during the deployment of such processes
are calculated.
