The 7210 SAS-D is a service-aware Layer 2 device with support for QinQ Layer 2 uplinks. The device functions as an Ethernet demarcation and back-haul unit with support for four 10/100/1000 Base-T fixed copper ports and six 100/1000 SFP ports with line-rate switching on all the ports.
The following figure shows an example of the console port on a 7210 SAS-D front panel.