Sniffer® Portable Professional User's Guide - NetScout

Monitoring Your Network
Each possible statistic for the graphs is listed at the right of the
graph. Check the boxes of the statistics you would like included in
the graph. A line in the corresponding color will appear in the graph
for the selected statistic.
If you are having difficulty viewing the line for a particular statistic,
allow your mouse to hover over the entry for the statistic at the
right of the graph. The corresponding line will appear in bold in the
graph while your mouse is hovering over its entry at the right.
The graph includes a vertical “current” line. The statistics counters
at the right of the graph are based on the position of the “current
line.” You can move the current line in either of the following ways:
Clicking the arrow buttons at the top of the graph.
Clicking to the right or the left of the “current” line in the
graph.
The time and date entry at the top of the graph shows the current
position of the “current” line.
You can widen or narrow the time scale of the graph by clicking the
Long term (widen) or Short term (narrow) buttons at the top of
the graph.
Setting Thresholds for the Dashboard Statistics
You can set alarm thresholds for each of the dials on the Dashboard (as
well as many other network statistics). When a threshold is exceeded,
an entry is made in the Alarm log. You can monitor the Alarm log to keep
watch over your network.
To set a threshold value, click Set Thresholds at the top of the
Dashboard (Figure 5-2). Alternatively, you can select Options from the
Tools menu and click the Mac Threshold tab. You will see a complete
list of network parameters that can trigger a threshold alarm. The exact
parameters depend on the currently selected adapter.
Another option in this dialog box is the Monitor sampling interval
option. The High Threshold value for each measure will be the average
per second value measured during the monitor sampling interval.
Dashboard Counters for Wireless Networks
For wireless displays, the Dashboard includes a number of
wireless-specific counters not seen on wired networks. These counters
are described in this section and are found in:
The Gauge tab (see The Dashboard Gauge Tab on page 76)
The 802.11 tab (see The Dashboard 802.11 Tab on page 77)
User’s Guide 75