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FW 07.00.00/HAFM SW 08.06.00 McDATA Sphereon 4500 Fabric Switch Installation and Service Manual (620-000159-320, April 2005)

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McDATA Sphereon 4500 Fabric Switch Installation and Service Manual
• Link utilization % Rx - The current link utilization for the port
expressed as a percentage. On 1 Gbps links, ports can transmit or
receive data at 100 MB per second. On 2 Gbps links, ports can
transmit or receive data at 200 MB per second. Link utilization is
calculated over one-second intervals.
• Link utilization % Tx - The current link utilization for the port
expressed as a percentage. On 1 Gbps links, ports can transmit or
receive data at 100 MB per second. On 2 Gbps links, ports can
transmit or receive data at 200 MB per second. Link utilization is
calculated over one-second intervals.
Other statistics are also shown:
• LIPs Detected - A loop initialization primitive was detected,
which means the loop was completed.
• LIPs Generated - A loop initialization primitive was created to
initialize a loop.
Error Statistics The Error Statistics include these transmit and receive values:
• Link failures - The number of link failures recorded because a not
operational sequence (NOS), protocol timeout, or port failure was
detected.
• Sync losses - The number of loss-of-synchronizations detected
because an attached device was reset or disconnected from the
port.
• Signal losses - The number of loss-of-signal errors detected
because the attached device was reset or disconnected from the
port.
• Primitive sequence errors - The 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 - The number of invalid
transmission words from an attached device. This indicates that a
frame or primitive sequence arrived at the port corrupted.