User's Manual

360 CHAPTER 8: THE EVENT LOG
This device/link: Changes the threshold for the monitor on the item
indicated at the top of the dialog box only. This will be the item that the
Live Graphs were being viewed for, or the item that the event was
generated for, depending upon whether the Threshold Settings dialog
box was launched in the context of the Live Graphs window or the Events
List window respectively. This is the default.
Selected devices/links: Allows you to select the set of items to
change the threshold for this monitor on, by clicking Select to launch the
Change Selection dialog box. See “
Selecting Items” on page 351 for
more information on changing the set of selected items respectively.
By default this selection will contain only the item that the Live Graphs
were being viewed for, or the item that the event was generated for. You
can extend this selection to include any items of the same type in your
map.
All devices/links: Changes the threshold for this monitor on all items
of the same type.
This option not only changes the threshold for this monitor on items of
the same type that are currently in the map, but also changes it for any
items of the same type that may be added to the map in future through
network discoveries or manual map changes.
Configuring the
Storage of
Monitoring History
for Events
For monitor-based events 3Com Network Director, by default, stores a
10-minute history of the monitor state both before and after the event
was generated. This history is viewable from within the Graphs tab of the
More Details dialog box for the event See “
Graphs Tab” on page 346 for
further information.
The time period that a history is stored for can be adjusted to any number
of minutes from 1 to 60 by changing the Store history before and after
events for: setting within the Logging tab of the Tools > Options dialog
box: