Adding/Removing A History Control Entry - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Note:
Before adding an alarm entry, you need to define its associated event with the rmon
event command.
Perform the following configuration in system view.
Table 10-2 Add/remove an alarm entry
Add an alarm entry
Remove an alarm entry
After you set the alarm entry, the system does the following:
1) Sample the defined alarm variables at the specified interval.
2) Compare each sample with the thresholds: if the value of the sample exceeds the
rising threshold or is below the falling threshold, trigger the associated event.

10.2.3 Adding/Removing a History Control Entry

The history group of RMON can collect historical data and periodically collect and save
data on interfaces, providing information such as utilization, number of errors, and total
number of packets for later retrieval.
Perform the following configuration in Ethernet interface view.
Table 10-3 Add/remove a history control entry
Add a history control entry
Remove a history control entry
History control entries record periodic statistical samples. To view information about the
history table of RMON or a specified history entry, use the display rmon history
command.
Operation
Operation
3Com Corporation
10-3
Chapter 10 RMON Configuration
Command
rmon alarm alarm-entry alarm-variable
sampling-time { delta | absolute }
rising_threshold
event-entry1
threshold-value2 event-entry2 [ owner
text ]
undo rmon alarm alarm-entry
Command
rmon history entry-number buckets
number interval
[ owner text-string ]
undo rmon history entry-number
threshold-value1
falling_threshold
sampling-interval