embedded web server user guide

5–4 embedded web server user guide
Monitoring Products
Figure 5–2: Port Statistics tab view
Troubleshooting Tip for Port Stats
As a general rule, you should clear all the counters by choosing Clear Port Stats or
Clear All Port Stats after you have resolved a problem. When troubleshooting, keep
track of the time interval when errors accumulate to judge the presence and severity of
a problem. (There is 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 — Type of statistic being tracked.
• # of Wraps — Number of 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 — Number of instances of the tracked item recorded since system
initialization or the last time the counters were cleared.