D-LINK DGS-3612, Built in 12-port 10/100/1000Base-T L3 Management Switch with 4 Combo 10/100/1000Base-T ports, Redundant power supply support, administrator-definable port security, 24Gbps switching fabric, 802.3ad Link Aggregation port trunks of up to 32 Gigabit ports, Jumbo frame support, IP routing supporting RIP-1, RIP-2, OSPF routing protocols, VRRP, DVMRP v3, PIM DM, IGMP v1/v2/v3, 4K 802.1Q VLANs, Guest VLAN, IGMP snooping, MLD snooping, 802.1p 8 Priority Queues, Port mirroring, Bandwidth Control/Per flow bandwidth control per port granularity 64Kb/s, ACL max 8 profiles and 1792 rules, 802.1x Port- and MAC-based Access Control, Broadcast/Multicast Storm Control, IP-MAC-Port Binding, SNMP v.1, v.2c, v.3 support, RMON monitoring, Spanning Tree 802.1D/802.1w/802.1s MSTP, STP Loopback Detection, D-Link Safeguard Engine, SYSlog, Web-based management, Telnet, CLI through console port, Single IP Management