Repair Information
181
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Traffic statistics—These entries provide information about port traffic,
including:
— Fibre Channel frames received and transmitted.
— Four-byte words received and transmitted.
— Offline sequences received and transmitted.
— Link resets received and transmitted.
— Loop initialization primitives (LIPs) generated and detected.
— Percent link utilization (receive and transmit).
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Error statistics—The Port Stats page displays the following error statistics
for the port:
— Link failures—Link failures are recorded in response to a not operational
sequence (NOS), protocol time-out, or port failure.
— Sync losses—Synchronization losses are detected because an attached
device was reset or disconnected from the port.
— Signal losses—Signal losses are detected because an attached device was
reset or disconnected from the port.
— Primitive sequence errors—Incorrect primitive sequences are received
from an attached device, indicating Fibre Channel link-level protocol
violations.
— Discarded frames—Received frames could not be routed and were
discarded because the frame timed out (insufficient buffer-to-buffer
credit) or the destination device was not logged in to the director.
— Invalid transmission words—Several transmission words were received
with encoding errors, indicating an attached device is not operating in
conformance with the Fibre Channel specification.
— CRC errors—Received frames failed cyclic redundancy check (CRC)
validation, indicating the frames arrived at the director port corrupted.
Frame corruption may be caused by device disconnection, an optical
transceiver failure at the device, a bad fiber optic cable, or a poor cable
connection.
— Delimiter errors—Received frames had frame delimiter errors,
indicating the frame arrived at the director port corrupted. Frame
corruption may be caused by device disconnection, an optical transceiver
failure at the device, a bad fiber optic cable, or a poor cable connection.
Summary of Contents for StorageWorks 2/140 - Director Switch
Page 18: ...About this Guide 18 Director 2 140 Service Manual ...
Page 160: ...Diagnostics 160 Director 2 140 Service Manual ...
Page 262: ...FRU Removal and Replacement 262 Director 2 140 Service Manual ...
Page 270: ...Illustrated Parts Breakdown 270 Director 2 140 Service Manual ...
Page 318: ...Information and Error Messages 318 Error Messages ...
Page 388: ...Event Code Tables 388 Director 2 140 Service Manual ...
