Intel 480T, Руководство пользователя

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C H A P T E R 1 5 Status Monitoring and Statistics
Port Errors
The switch keeps track of errors for each port.
To view port transmit errors, use the following command:
show ports <portlist> txerrors
The following port transmit error information is collected by the
system:
• Port Number
• 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.
• Transmit Late Collisions (TX Late Coll) — The total number of
collisions that have occurred after the port’s transmit window has
expired.
• Transmit Deferred Frames (TX Deferred) — The total number
of frames that were transmitted by the port after the first
transmission attempt was deferred by other network traffic.
• Transmit Errored Frames (TX Error) — The total number of
frames that were not completely transmitted by the port because
of network errors (such as late collisions or excessive collisions).
• Transmit Parity Frames (TX Parity) — The bit summation has
a parity mismatch.
To view port receive errors, use the following command:
show ports <portlist> rxerrors
The following port receive error information is collected by the
switch:
• 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.
• Receive Oversize Frames (RX Over) — The total number of
good frames received by the port greater than the supported
maximum length of 1,522 bytes. Ports with jumbo frames enabled
do not increment this counter.