Adding/Deleting An Entry To/From The History Control Table - 3Com 8800 Configuration Manual

3Com Switch 8800 Configuration Guide
Table 48-4 Add/delete an entry to/from the extended RMON alarm table
Add an entry to the extended
RMON alarm table
Delete an entry from the
extended RMON alarm table
After you define the extended alarm entry, the system processes the entry in the
following way:
1) Sampling the defined prialarm-formula according to the time interval
sampling-time that you have set
2) Performing the operation to the sampled value according to the defined formula
prialarm-formula
3) Comparing the resule with the configured threshold and handling them in the way
described in the following table
Table 48-5 Handling the extended alarm entry
The result is greater than the configured
upper limit threshold-value1
The result is less than the configured lower
limit threshold-value2

48.2.4 Adding/Deleting an Entry to/from the History Control Table

The history data management helps you set the history data collection, periodical data
collection and storage of the specified ports. The sampling information includes the
utilization ratio, error counts and total number of packets.
You can use the following commands to add/delete an entry to/from the history control
table.
Perform the following configuration in Ethernet port view.
Table 48-6 Add/delete an entry to/from the history control table
Add an entry to the history
control table.
Operation
Case
Operation
Chapter 48 RMON Configuration
Command
rmon prialarm
[ alarm-des ] sampling-timer { delta | absolute |
changeratio } rising-threshold threshold-value1
event-entry1 falling-threshold threshold-value2
event-entry2 entrytype
cycle-period } [ owner text ]
undo rmon prialarm entry-number
The defined event event-entry1 is
triggered
The defined event event-entry2 is
triggered
Command
rmon history entry-number buckets number
interval sampling-interval [ owner text-string ]
48-4
entry-number alarm-var
{ forever | cycle
Processing