An alternative solution for a reconfigurable bus is to host
the BF functions in the network element relays for the benefit
of avoiding common-mode failures for the bus trip and BF trip
decisions. In such a case, the bus relay receives a BFT
command from individual BF elements and directs them
accordingly, depending on the dynamic bus configuration at
the time (Fig. 7). Section VI, Subsection C contains more
details.