Triangular direct connect ethernet network using the 2 possible paths (bonding + failover)

imagine this topology: A / \ B --- C In this situation, A can talk to B using the A B link of couse, but could also use the A C B links. Is it possible with a linux distribution to configure the network to : 1. Allow all hosts to take advantage of both path possible to an other host to double the bandwidth, a bit like bonding the 2 interfaces on each host 2. Allow all hosts to talk to an other host if the direct link between them has been cut, a bit like bridging the 2 interfaces on each host.