Nortel Networks 380-24F - Manual (Page 110)

110 Chapter 6 Viewing system statistics
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2 To refresh the statistical information, click Update.
Table 40 Ethernet Errors page items
Item Description
Displays statistics in a bar graph format.
Displays statistics in a pie chart format.
Port The port number corresponding to the selected switch.
Alignment Errors The number of frames received on a particular interface that are not an integral number of
octets in length and do not pass the FCS check.
FCS Errors The number of frames received on a particular interface that are an integral number of octets
in length, but do not pass the FCS check.
Internal MAC Transmit
Errors The number of frames for which transmission on a particular interface fails due to an internal
MAC sublayer transmit error. A frame only is counted by an instance of this object if it is not
counted by the corresponding instance of either the dot3StatsLateCollisions object, the
dot3StatsExcessiveCollisions object, or the dot3StatsCarrierSenseErrors object.
Internal MAC Receive
Errors The number of frames for which reception on a particular interface fails due to an internal
MAC sublayer transmit error. A frame only is counted by an instance of this object if it is not
counted by the corresponding instance of either the dot3StatsLateCollisions object, the
dot3StatsExcessiveCollisions object, or the dot3StatsCarrierSenseErrors object.
Carrier Sense Errors The number of times that the carrier sense conditions was lost or never asserted when
attempting to transmit a frame on a particular interface.
Frame Too Long The number of frames received on a particular interface that exceed the maximum permitted
frame size.
SQE Test Errors The number of times that the SQE TEST ERROR message is generated by the PLS sublayer
for a particular interface. The SQE TEST ERROR is defined in section 7.2.2.2.4 of ANSI/
IEEE 802.3-1985, and its generation is described in section 7.2.4.6 of the same document.
Deferred Transmissions The number of frames for which the first transmission attempt on a particular interface is
delayed because the medium is busy.
Single Collision Frames The number of successfully transmitted frames on a particular interface for which
transmission is inhibited by more than one collision.
Multiple Collision Frames The number of successfully transmitted frames on a particular interface for which
transmission is inhibited by a single collision.
Late Collisions The number of times a collision is detected on a particular interface later than 512 bit-times
into the transmission of a packet.
Excessive Collisions The number of frames for which transmission on a particular interface fails due to excessive
collisions.