Chassis-based Layer 2/3 switches are modular devices designed to offer high performance, scalability, and fault tolerance. Supporting high-density 25/50 GE and 40/100 GE, along with 400 GE, for. Deliver efficient, reliable, and high performing network architecture with modular chassis switches. PLANET CS-6306R Core Layer Routing Switch is specially designed for large network applications such as enterprises, campuses, communities, ISPs and data center networks where flexible configuration, large capacity, high density, high reliability and advanced traffic management are required. The. FS offers a variety of options for modular switches, including chassis, line cards, chassis switches fully equipped with line cards, and customized chassis switches.