> # Port Monitoring Traffic (9020)

> Field | Description
> --- | ---
> Rx bytes | The number of frames/packets/IOs/etc that have been received by this port. A Fibre Channel frame starts with SOF and ends with EOF. FC loop devices should not count frames passed through. This value represents the sum total for all other Rx objects
> Tx bytes | The number of octets or bytes that have been transmitted by this port. One second periodic polling of the port. This value is saved and compared with the next polled value to compute net throughput. For Fibre Channel ordered sets are not included in the count.
> Rx frames | The number of octets or bytes that have been received by this port. One second periodic polling of the port. This value is saved and compared with the next polled value to compute net throughput. For Fibre Channel, ordered sets are not included in the count.
> Tx frames | The number of octets or bytes that have been transmitted by this port. One second periodic polling of the port. This value is saved and compared with the next polled value to compute net throughput. For Fibre Channel, ordered sets are not included in the count.
> Class2 Rx frames | Count of Class 2 Frames received at this port. This is a Fibre Channel only statistic.
> Class2 Tx frames | Count of Class 2 Frames transmitted out this port. This is a Fibre Channel only statistic.
> Class3 Rx frames | Count of Class 3 Frames received at this port. This is a Fibre Channel only statistic
> Class3 Tx frames | Count of Class 3 Frames transmitted out this port. This is a Fibre Channel only statistic.

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