CANOGA PERKINS 9145E NID Software Version 3.1 - Manual (Page 91)

Port Information 9145E NID Software User’s Manual
Layer 2 Statistics
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Frames Sent The total number of frames sent from the interface since the last reset (Raw) or the
last counter reset (Current).
Frames Rcvd The total number of valid frames received on the interface since the last reset
(Raw) or the last counter reset (Current).
Bytes Sent The total number of bytes transmitted from the interface since the last reset (Raw) or
the last counter reset (Current).
Bytes Rcvd The total number of valid bytes received on the interface since the last reset (Raw)
or the last counter reset (Current).
Frames > 1518 Number of frames received on the interface that had a length (excluding framing
bits, but including the CRC) of 1519 or higher.
Frames > Limit Number of frames received on the interface that had a length that exceeded the
user-defined Frame Size.
Line Rate Utilization
The percent utilization of the Ethernet segment on a scale of 0 to 100
percent.
5.3.1 Layer 2 Counter Definitions
The following are definitions of the counters on the Layer 2 Error Statistics screen (Figure 5-14).
5.3.1.1 Layer 2 Error Statistics Screen
Frames Sent
The total number of frames sent from the interface since the last reset (Raw) or
the last counter reset (Current).
Frames Rcvd The total number of valid frames received on the interface since the last reset
(Raw) or the last counter reset (Current).
Collisions Number of collisions that the interface encountered when attempting to transmit a
frame over a half duplex connection.
Late Collisions Number of collisions that the interface encountered later than 512 bit-times into
the frame when attempting to transmit a frame over a half duplex connection.
Alignment Errors Number of frames received on the interface that had a non-integral number
of octets and a bad CRC. The interface will discard the frame.
Undersize < 64 Number of frames received on the interface that were less than 64 bytes in
length (excluding framing bits, but including the CRC), and were otherwise well formed. The
interface will discard the frame.
Oversize > MaxFrameSize Number of frames received on the interface that had a length
(excluding framing bits, but including the CRC) greater than the Maximum Frame Size set for the
unit, inclusive.
See the Functional Configuration screen (Figure 5-5) for information on how to set the Maximum
Frame Size. The interface will discard the frame.
Fragments Number of frames received on the interface that were not an integral number of
bytes in length or that had a bad CRC, and were less than 64 bytes in length (excluding framing
bits but including the CRC). The interface will discard the frame.