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For the second view of SoC, we recall our definitions for network and internetworks.
Accordingly, we identify three boundaries for NC interactions; within the same
computer, on different computers communicating using a network communication
substrate, and on different computers communicating using an internetwork communication
substrate. NCs instantiated on the same computer form what we call a
network component (NComp). The network configuration tools can be composed of any number of
specialized NCs but the minimum configuration for an NComp is one instantiation of
each of the basic NCs (AOC, COC, and ROC). NComp represent the first interaction
boundary. The second interaction boundary is represented by a network hosting two
or more NComp communicating using the same homogenous substrate. The third
interaction boundary is represented by an internetwork hosting two or more networks,
which on turn host the NComps communicating using a heterogeneous internetwork
substrate thus requiring an intermediate NComp to act as a translator. The formal
definition for this setup is defined in the next section
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