3Com Switch 8800 Configuration Guide
Chapter 48 RMON Configuration
48-4
Table 48-4
Add/delete an entry to/from the extended RMON alarm table
Operation
Command
Add an entry to the extended
RMON alarm table
rmon prialarm
entry
-
number
alarm
-
var
[
alarm
-
des
]
sampling
-
timer
{
delta
|
absolute
|
changeratio
}
rising-threshold threshold
-
value1
event
-
entry1
falling-threshold threshold
-
value2
event
-
entry2
entrytype
{
forever
|
cycle
cycle
-
period
} [
owner
text ]
Delete an entry from the
extended RMON alarm table
undo rmon prialarm
entry
-
number
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
Case
Processing
The result is greater than the configured
upper limit threshold-value1
The defined event event-entry1 is
triggered
The result is less than the configured lower
limit threshold-value2
The defined event event-entry2 is
triggered
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
Operation
Command
Add an entry to the history
control table.
rmon history
entry
-
number
buckets
number
interval
sampling
-
interval
[
owner
text
-
string
]
