# Port Performance

Port performance of a device node is displayed in three sections:

- Performance

- Connectivity

- Properties

## Performance Tab

The performance tab (shown above) includes two sections: Performance (Port) and Counters. The performance section displays received and transmitted packets and data to facilitate comparison between received and transmitted data. The counters section displays unit and error counters for the selected port.

## Connectivity Tab

This section displays the same content as the Connectivity (Node).

## Properties Tab

This section displays Port Performance properties. The Port Performance properties include Device Information, Link, Link Connection, Port Capability, Virtual Lane, Diagnostics, Partition Key Enforcement, Management, Flit Control, Port Error Actions, Miscellaneous, MTU by VL, HoQLife By VL, VL Stall Count By VL, QSFP Interpreted Cable Information, SC2VLT Mapping Table, SC2VLNT Mapping Table, and Link Down Error Log.