24 Gigabit electrical ports and 6 10 Gigabit SFP+ optical ports. Support static routing, policy routing, rip, OSPF,BGP,MPLS and other three-layer routing protocols. IGMP snooping and GRMP for filtering multicast traffic. Port-based VLAN, IEEE 802.1Q VLAN, and GVRP to ease network planning. Support IEEE 802.1x authentication, radius and bdtacacs + authentication. Support DHCP Server?DHCP Relay?DHCP Snooping. Support EAPs and ERPs Ethernet ring network protection protocol. QoS (IEEE 802.1P/1Q and TOS/DiffServ) to increase determinism. Easy network management by web browser, Console, Telnet, SSH. SNMPv1/v2c/v3 for different levels of network management