Wi fi controller poe switch switching ports 24 gigabit ethernet ports 24 x rj 45 4 x sfp fast ethernet ports 20 x rj 45 ethernet ports 20 x rj 45 switch type stackable management managed layer 2 network standards quality of services qos vlan port mirroring sflow spanning tree protocol stp jumbo frames power over ethernet poe full duplex flow control igmp snooping virtual router redundancy protocol vrrp mld snooping lldp support dhcp relay link aggr