  In the near to mid future, Quantum Local Area Networks (QLANs) -- the
fundamental building block of the Quantum Internet -- will unlike exhibit
physical topologies characterized by densely physical connections among the
nodes. On the contrary, it is pragmatic to consider QLANs based on simpler,
scarcely-connected physical topologies, such as star topologies. This
constraint -- if not properly tackled -- will significantly impact the QLAN
performance in terms of communication delay and/or overhead. Thankfully, it is
possible to create on-demand links between QLAN nodes, without physically
deploying them, by properly manipulating a shared multipartite entangled state.
Thus, it is possible to build an overlay topology, referred to as artificial
topology, upon the physical one. In this paper, we address the fundamental
issue of engineering the artificial topology of a QLAN to bypass the
limitations induced by the physical topology. The designed framework relays
only on local operations, without exchanging signaling among the QLAN nodes,
which, in turn, would introduce further delays in a scenario very sensitive to
the decoherence. Finally, by exploiting the artificial topology, it is proved
that the troubleshooting is simplified, by overcoming the single point of
failure, typical of classical LAN star topologies.
