Znyx 10Base-T/100Base-TX Ethernet interface statistics

RECEIVE section statistics

The following table describes the statistics in the RECEIVE section of the ifstat command output when you use the command on a Znyx 10Base-T/100Base-TX Ethernet interface, such as an X1001, X1001B, X1002, X1003, X1012, or X1012B card.

Statistic	Meaning
Packets	Number of packets received on the interface.
Bytes	Number of bytes received on the interface.
Total errors	Number of errors during Ethernet frame reception, including all kinds of receive errors.
No buffers	Number of received packets dropped due to the unavailability of buffers.
Length errors	Number of frames truncated due to the shortage of receive descriptors.
Runt frames	Number of runt frames.
Long frames	Number of frames received that exceeded the maximum Ethernet-specified size of 1,518 bytes.
CRC errors	Number of CRC errors that occurred on the received frames.
H/w overflow	Number of frames discarded because of receive FIFO overflow.
List overflow	Number of frames dropped due to the unavailability of descriptors.
Rst frame drops	Number of frames discarded due to the resetting of the receive process.
Collisions	Number of frames received that were damaged by late collisions.

TRANSMIT section statistics

The following table describes the statistics in the TRANSMIT section of the ifstat command output when you use the command on a Znyx 10Base-T/100Base-TX Ethernet interface.

Statistic	Meaning
Packets	Number of packets attempted to be transmitted.
Bytes	Number of bytes attempted to be transmitted.
Total errors	Number of hardware errors encountered while attempting to transmit.
Collisions	Number of collisions that occurred while transmitting frames.
Late collisions	Number of collisions aborted due to a late collision. This usually indicates a duplex mismatch.
Excess coll	Number of times transmission was aborted due to excessive collisions.
Queue overflow	Number of frames dropped because the software queue was full.
No carrier	Number of times the carrier signal was not present during transmission.
H/w underflow	Number of times the transmitter aborted the message because data arrived late from memory.
Defer	Number of times transmission had to be deferred.
Link failure	Number of times the link failed.
Time out	Number of times the transmit jabber timer expired.
List underflow	Number of frames that had to be dropped due to the unavailability of descriptors.
Loss of carrier	Number of times the carrier was lost.
No buffers	Number of times buffers were unavailable.

DEVICE section statistics

The following table describes the statistics in the DEVICE section of the ifstat command output when you use the command on a Znyx 10Base-T/100Base-TX Ethernet interface.

Statistic	Meaning
Resets	Number of times the Ethernet device was reset.

LINK INFO section statistics

The following table describes the statistics in the LINK INFO section of the ifstat command output when you use the command on a Znyx 10Base-T/100Base-TX Ethernet interface.

Statistic	Meaning
Auto	Autonegotiation state.
Mediatype	Media type, such as twisted pair.
Link Partner	The Autonegotiation capability of the remote end. It is unknown if Autonegotiation is disabled.
Link State	Link status.