User's Manual

430 CHAPTER 10: RMON
Figure 212 History Entry Creation
This allows you to define a sample interval (frequency of sampling) and a
sample length (the length of time over which statistics are gathered). If
resources are available on the device, a new history table will be created
on the device, which can then be selected from the History Entries list.
The Delete button is used to delete the currently selected entry in the
History Entries list, and the corresponding entry in the device’s history
control table.
History tables use resources on a network device, and may affect its
performance. Try to avoid creating history tables on network devices
unnecessarily, and delete them from the device when you are finished
with them. See “
Managing RMON tables” on page 447
Clicking on the OK button launches the RMONView window, showing
the RMON history data associated with the selected interface on the
selected device.