I would like to add a second interface to qnet based on a different technology but preserving the Ethernet connectivity 
with the goal of extending transparent networking to nodes connected in different ways.

As example:

NodeA1 --|-- NodeB ----- NodeC
NodeA2 --|                               

RapidIO is between NodeA1, NodeA2 and NodeB. Gigabit Ethernet is between NodeB and NodeC.

To have a connection between NodeA1 and NodeC, NodeB must act as a gateway using two different technologies. QNET must 
handle within NodeB two different connection types.

Is it possible to add a L3 module ? 
Or maybe is there a more effective way to do the job ?