  We analyze an all-optical setup which enables Bell-inequality violation over
long distances by exploiting probabilistic entanglement swapping. The setup
involves only two-mode squeezers, displacements, beamsplitters, and on/off
detectors. We analyze a scenario with dichotomic inputs and outputs, and check
the robustness of the Bell inequality violation for up to 6 parties, with
respect to phase-, amplitude-, and dark-count noise, as well as loss.
