S
HOWING
P
ORT
S
TATISTICS
9-31
FCS Errors A count of frames received on a particular interface
that are an integral number of octets in length but do
not pass the FCS check. This count does not include
frames received with frame-too-long or
frame-too-short error.
Excessive Collisions A count of frames for which transmission on a
particular interface fails due to excessive collisions.
This counter does not increment when the interface is
operating in full-duplex mode.
Single Collision Frames The number of successfully transmitted frames for
which transmission is inhibited by exactly one
collision.
Internal MAC Transmit
Errors
A count of frames for which transmission on a
particular interface fails due to an internal MAC
sublayer transmit error.
Multiple Collision Frames A count of successfully transmitted frames for which
transmission is inhibited by more than one collision.
Carrier Sense Errors The number of times that the carrier sense condition
was lost or never asserted when attempting to
transmit a frame.
SQE Test Errors A count of times that the SQE TEST ERROR
message is generated by the PLS sublayer for a
particular interface.
Frames Too Long A count of frames received on a p articular interface
that exceed the maximum permitted frame size.
Deferred Transmissions A count of frames for which the first transmission
attempt on a particular interface is delayed because
the medium was busy.
Internal MAC Receive
Errors
A count of frames for which reception on a particular
interface fails due to an internal MAC sublayer receive
error.
Table 9-4 Port Statistics (Continued)
Parameter Description