To connect multiple Ethernet switches, the best way is to use a multi-strand fiber cable. The 4-strand pre-terminated fiber optic cable consists of four individual strands or fibers of glass or plastic fibers enclosed in a protective sheath. We have NO direct trunk connecting the. Therefore, the core switch becomes a common mediator for transmission between any two switches. In this comprehensive guide, we'll explore these three methodologies, providing insights on how they work, and help you understand the best. In this article, we'll explain how to connect multiple Ethernet switches using fiber optic cables and the equipment required for this to work. The below content will show you three methods.