Layer 2 switches find their way into every application including light to heavy voice, video and data. Both Fast-Ethernet and Gigabit Layer 2 switches support multiple features designed to provide Quality of Service, network management and security.Up to 40G stacking bandwidth providing higher efficiency of access network.Embedded D-Link SIM for integration of all the xStack switches,Security : IP-MAC-Port Binding (IMPB), D-Link Safeguard Engine , DHCP Server Screening , BPDU Attack Protection , ARP Spoofing Prevention.