Introduction  JHA-SW4024PMGH series switches support Layer 3 routing protocols that include Static Routing, RIP, OSPF and VRRP, helping to build scalable, reliable networks. Multicast routing protocols such as PIM-SM and PIM-DM guarantee efficient routing for multicast groups. The switches are equipped with 4 10G SFP+ ports which can be used for stack-ing. JHA-SW4024PMGH Series switches support up to 8 switches for network simplification. With different port forms including Gigabit Ethernet, SFP Slots, 10G SFP+ Slots, JHA-SW4024PMGH Series switches are capable of high switching capacity for the network. With all units identified by a simple IP address, the stack can be easily configured and monitored. JHA-SW4024PMGH series switches provide 3 kinds of out-of-band management ports: RJ45 console ports, Micro-USB console ports and RJ45 out-of-band management ports. Micro-USB console ports are designed for those laptop computers which do not support the RS232 (DB9) interface. Customers can use a USB cable to manage switches through the CLI (command-line interface). The RJ45 out-of-band management port is used solely for web management, leaving the RJ45 ports free for data transmission.