Dell Networking X4012 - Switch - 12 Ports - Managed - Rack-mountable, Black (463-6162) Supports Virtual Cable Diagnostics by Marvell and fiber transceiver diagnostics to provide advanced troubleshooting capabilities for your cable infrastructure Integrated LEDs for improved visual monitoring and analysis Supports up to 4096 port-based VLANs. Honors 802.1p values and honors IP DSCP values Supports strict priority and configurable weighted round robin (WRR) scheduling across queues