McDATA 4500 Manual Do Utilizador

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-optic cable, or a poor 
cable connection.

As a general rule, you should clear all counts after the system is 
stabilized. When looking at the Performance View, roughly keep 
track of the time interval when errors accumulate to judge the 
presence and severity of a problem. Also, recognize that there is a 
link recovery hierarchy implemented in Fibre Channel to handle 
some level of “expected anomalies.” In general, only be 
concerned with error counts that increment very quickly.

The two buttons located at the right end of the title bar on the 
Statistics Values table are:

The Clear button clears all counters to zero. Selecting this button 
displays a Clear Port Statistics dialog box. Select the appropriate 
radio button and click OK to clear all counters to zero on the 
selected port only or counters on all ports on the switch. Note that 
this also clears counters for other Product Manager users.

An entry identifying when the statistics were cleared and by 
whom is saved in the Audit Log.

The Refresh button updates the data in the statistics tables and 
enables you to compare values at any given time. Note that you 
can also refresh data by clicking the port’s bar graph.

Click Clear to clear the statistics counters to zero. When the 
confirmation dialog box displays, select This port only or All ports 
on product, then click OK to clear the counters to 0.