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
4-25
Repair Information
a link recovery hierarchy implemented in Fibre Channel to handle
some level of “expected anomalies”.) For troubleshooting purposes,
you want to focus on when the errors, as displayed in the Counter
column, increment very quickly.
Parts of Statistics
Tables
The tables of statistics contain the following columns:
• Statistics - the type of statistic being tracked.
• # of Wraps - times the Counter value wraps, for statistics that
grow rapidly. The maximum value that either the Counter or the
#ofWraps can hold is 2
32
, or 4,294,967,296. Each time the Counter
field reaches the maximum value of 2
32
, the wrap count is
incremented by 1.
• Counter - the number of instances of the tracked item recorded
since system initialization or the last time the counters were
cleared.
Traffic Transmit and
Receive Statistics
The Traffic Statistics include these transmit and receive values.
•Frames Rx - The number of frames that the port has received.
• Frames Tx - The number of frames that the port has transmitted.
• Four byte words Rx - The number of words that the port has
received.
• Four byte words Tx - The number of words that the port has
transmitted.
• Offline sequences Rx - The number of offline sequences (OLS)
received by this port.
• Offline sequences Tx - The number of offline sequences (OLS)
transmitted by this port.
• Link resets Rx - The number of link reset protocol frames
received by this port from the attached N_Port.
• Link resets Tx - The number of link reset protocol frames
transmitted by this port to the attached N_Port.
• 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.