Error Statistics - HP AA-RTDRB-TE User Manual

Error Statistics

The Error Statistics include these transmit and receive values:
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Link failures — Number of link failures recorded because a not operational
sequence (NOS), protocol timeout, or port failure was detected.
Sync losses — Number of loss-of-synchronizations detected because an
attached device was reset or disconnected from the port.
Signal losses — Number of loss-of-signal errors detected because the
attached device was reset or disconnected from the port.
Primitive sequence errors — Number of primitive sequence protocol errors
received from an attached device, which indicates a Fibre Channel link-level
protocol violation.
Discarded frames — A received frame could not be routed and was
discarded because the frame timed out due to an insufficient buffer-to-buffer
credit, or the destination device was not logged into the product.
Invalid transmission words — Number of invalid transmission words from
an attached device. This indicates that a frame or primitive sequence arrived at
the port corrupted.
CRC errors — A received frame failed a cyclic redundancy check (CRC)
validation, indicating the frame arrived at the port corrupted. Frame
corruption may be caused by device disconnection, an optical transceiver
failure at the device, a bad fiber cable, or a poor cable connection.
Delimiter errors — Number of times that the switch detected an
unrecognized start-of-frame (SOF), an unrecognized end-of-frame (EOF)
delimiter, or an invalid class of service. This indicates that the frame arrived at
the switch's port corrupted. This corruption can be due to
plugging/unplugging the link, bad optics at either end of the cable, bad cable,
or dirty or poor connections. Moving the connection around or replacing
cables can isolate the problem.
Address ID errors — A received frame had an unavailable or invalid Fibre
Channel destination address, or an invalid Fibre Channel source address. This
typically indicates the destination device is unavailable.
Frames too short — A received frame exceeded the Fibre Channel frame
maximum size or was less than the Fibre Channel minimum size, indicating
the frame arrived at the switch's port corrupted. Frame corruption may be
caused by device disconnection, an optical transceiver failure at the device, a
bad fiber cable, or a poor cable connection.
Monitoring Products
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