Rackmount switch poe switch switching ports 24 gigabit ethernet ports 24 x rj 45 4 x sfp fast ethernet ports 24 x rj 45 ethernet ports 24 x rj 45 switch type standalone management managed layer 3 network standards energy efficient ethernet flow control full duplex igmp snooping auto negotiation link layer discovery protocol lldp link aggregation control protocol lacp power over ethernet poe quality of services qos spanning tree protocol stp syslog