User's Manual

Components 429
History Entries
The History Entries list shows the available entries in the history control
table for the selected interface. Entries in the history control table define
the history data that is available from the device. If there are no history
control table entries for the currently selected interface on the device
then this list will be empty.
3Com devices generally create two standard history tables on every
supported interface - one sampling every 30 seconds, and one sampling
every 30 minutes. These allow you to immediately see historical
information against an interface without having to have pre-configured
your own history table.
The History view cannot be launched without selecting an entry in the
History Entries list. Attempting to launch the History view by clicking OK
on this dialog box when the History Entries list is empty does not launch
the 3Com Network Director RMON window, and instead shows the
following message:
Figure 211 Error Message
Add, Delete
If the selected device has resources available, the Add button can be used
to add new history tables to the selected device. On clicking Add the
following dialog box is displayed.
Packet Packets dropped, packets received,
and broadcast and multicast packets
received at the chosen interface
Predefined View Definition