XGS3-42000R 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 XGS3-42000R is the High-density Chassis Ethernet Switch built with 4 module slots and redundant power supply. It provides great porting flexibility for network deployment by offering various combinable management modules and standard interfaces. For instance, one management module can be collaborated with three standard modules, or two management modules work with two standard modules to mutually perform system backup. Within the 6U height, single chassis, the maximum configuration can be: – 160 10/100/1000BASE-T Copper Slots – 156 100/1000BASE-SX/LX SFP Fiber Slots – 60 10G SFP+ Fiber Slots – 6 40G QSFP+ Fiber Slots Positioned as the core layer switch, the XGS3-42000R serves ideally for large- and medium-sized networks and IP metropolitan networks by supplying advanced intelligent and secure features and giving high performance and flexibility. Supporting 10/40-Gigabit Fiber Optic Ethernet 10/40-Gigabit Ethernet, which adopts the full-duplex technology instead of the low-speed, half-duplex CSMA/CD protocol, is a big leap in the evolution of Ethernet. 10/40-Gigabit Ethernet can be deployed in the star or ring topology. With the 10/40-Gigabit Ethernet technology applied, the XGS3-42000R provides broad bandwidth and powerful processing capacity. It is suitable for metropolitan networks and wide area networks. Using the XGS3-42000R, users can simplify network structures and reduce cost of network construction.