# Ethernet Errors

The CiscoView Monitor Port window displays the following error information for an Ethernet port:

MAC Transmit Errs

MAC Receive Errs

SQE Test Errs

Carrier Sense Errs

Giant Frames

Late Collisions

Alignment Check Errs

# MAC Transmit Errs (dot3StatsInternalMacTransmitErrors)

Displays the number of frames for which transmission failed because of an internal MAC layer transmit error (that is, transmit errors were not picked up in any other count).

# MAC Receive Errs (dot3StatsInternalMacReceiveErrors)

Displays the number of frames for which reception failed because of an internal MAC layer receive error (that is, the receive errors were not picked up in any other count).

# SQE Test Errs (dot3StatsSQETestErrors)

Indicates the number of times that the Signal Quality Error TEST ERROR message was generated by the interface.

# Carrier Sense Errs (dot3StatsCarrierSenseErrors)

Indicates the number of transmission attempts that failed because the carrier sense condition was lost or never asserted.

# Giant Frames (dot3StatsFrameTooLongs)

Indicates the number of received frames that are bigger than the maximum permitted size.

A giant frame indicates that a non-local software error occurred or that a protocol using nonstandard frame lengths is in use.

# Late Collisions (dot3StatsLateCollisions)

Specifies the number of times a collision was detected later than 64 octets into the transmission. (The total number of late collisions is added into the collision count.)

Late collisions indicate either that the network has too large a propagation delay between the reporting station and other stations, or that some other station is not detecting/responding to collisions correctly.

# Alignment Check Errs (dot3StatsAlignmentErrors)

Indicates the number of frames with an alignment error. This means that the length is not an integral number of octets and the frame cannot pass the FCS test.

Alignment errors are usually caused by a non-local network problem.