Definitions - technologies
bridging - techniques for interconnecting two LAN segments that utilize the same LLC (Logical Link Control) procedures but may use the same or different MAC (Media Access Control) procedures
forwarding - the process of sending a frame toward its ultimate destination by an internetworking device
routing - the process of finding a path to the destination host.
switching - switching and routing are complimentary technologies. Switching is known for simplicity and performance; Routing is known for manageability and control