3com 9000 SX User Manual
9-6
C
HAPTER
9: S
TATUS
M
ONITORING
AND
S
TATISTICS
Port Errors
The Switch 9000 keeps track of errors for each port.
To view port error, type
show port <portlist> errors
The following port error information is collected by the Switch:
Link Status — The current status of the link. Options are:
■
Ready — The port is ready to accept a link.
■
Active — The link is present at this port.
Transmit Collisions (TX Coll) — The total number of collisions seen
by the port, regardless of whether a device connected to the port
participated in any of the collisions. This value will always be zero for a
full-duplex device
by the port, regardless of whether a device connected to the port
participated in any of the collisions. This value will always be zero for a
full-duplex device
Transmit Late Collisions (TX Late) — The total number of collisions
that have occurred after the port’s transmit window has expired. This
value will always be zero for a full-duplex device.
that have occurred after the port’s transmit window has expired. This
value will always be zero for a full-duplex device.
Transmit Deferred Frames (TX Def) — The total number of frames
that were transmitted by the port after the first transmission attempt
was deferred by other network traffic.
that were transmitted by the port after the first transmission attempt
was deferred by other network traffic.
Transmit Frames Lost (TX Lost) — The total number of frames that
were not completely transmitted by the port.
were not completely transmitted by the port.
Transmit Errored Frames (TX Err) — The total number of frames that
were not completely transmitted by the port due to network errors,
such as late collisions or excessive collisions.
were not completely transmitted by the port due to network errors,
such as late collisions or excessive collisions.
Receive Bad CRC Frames (RX CRC) — The total number of frames
received by the port that were of the correct length, but contained a
bad FCS value.
received by the port that were of the correct length, but contained a
bad FCS value.
Receive Oversize Frames (RX Over) — The total number of good
frames received by the port that were of longer than the supported
maximum length of 1522 bytes.
frames received by the port that were of longer than the supported
maximum length of 1522 bytes.
Receive Undersize Frames (RX Under) — The total number of
frames received by the port that were less than 64 bytes long.
frames received by the port that were less than 64 bytes long.
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