FW 07.00.00/HAFM SW 08.06.00 McDATA Intrepid 6064 Director Installation and Service Manual (620-000108-920, April 2005)

4
Obtaining Port Diagnostic Information
4-19
Repair Information
— Sync losses - Synchronization losses are detected because an
attached device was reset or disconnected from the port. At
the Hardware View, a yellow triangle appears to indicate a link
incident.
— Signal losses - Signal losses are detected because an attached
device was reset or disconnected from the port. At the
Hardware View, a yellow triangle appears to indicate a link
incident.
— Primitive sequence errors - Incorrect primitive sequences are
received from an attached device, indicating Fibre Channel
link-level protocol violations. At the Hardware View, a yellow
triangle appears to indicate a link incident.
— 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 into 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 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.
— Address ID errors - Received frames had unavailable or
invalid Fibre Channel destination addresses, or invalid Fibre
Channel source addresses. This typically indicates the
destination device is unavailable.
— Frames too short - Received frames were less than the Fibre
Channel minimum size, 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.