A system of a machine includes a first node and a second node configured to establish a first communication path through a waveguide system to guide a radio frequency transmission between the first node and the second node in the machine. The system also includes a third node and a fourth node configured to establish a second communication path in the machine. The first node is grouped with the third node as a first node group, and the second node is grouped with the fourth node as a second node group such that the second communication path provides a redundant communication path with respect to the first communication path for communication between the first node group and the second node group.