Handbook
Error! Use the Home tab to apply 見出し 1 to the text that you want to appear here. 135
e. Click Submit.
2. Apply, verify, and save the configuration.
RMON group 2 — history
The RMON History group allows you to sample and archive Ethernet statistics for a specific interface
during a specific time interval. The switch supports up to 5 RMON History groups.
NOTE: RMON port statistics must be enabled for the port before an RMON history group can
monitor the port.
Data is stored in buckets, which store data gathered during discreet sampling intervals. At each
configured interval, the history instance takes a sample of the current Ethernet statistics, and places them
into a bucket. History data buckets reside in dynamic memory. When the switch is re-booted, the buckets
are emptied.
Requested buckets (/cfg/rmon/hist x/rbnum) are the number of buckets, or data slots, requested by
the user for each History Group. Granted buckets (/info/rmon/hist x/gbnum) are the number of
buckets granted by the system, based on the amount of system memory available. The system grants a
maximum of 50 buckets.
Use an SNMP browser to view History samples.
History MIB objects
The type of data that can be sampled must be of an ifIndex object type, as described in RFC1213 and
RFC1573. The most common data type for the history sample is as follows:
1.3.6.1.2.1.2.2.1.1.x -mgmt.interfaces.ifTable.ifIndex.interface
The last digit (x) represents the interface on which to monitor, which corresponds to the port number (1-16,
18-24). History sampling is done per port, by utilizing the interface number to specify the port number.
Configure RMON History (AOS CLI example)
1. Enable RMON on each port where you wish to collect RMON History.
>> /cfg/port 21/rmon (Select Port 21 RMON)
>> Port 21# ena (Enable RMON)
>> Port 21 RMON# apply (Make your changes active)
>> Port 21 RMON# save (Save for restore after reboot)
2. Configure the RMON History parameters.
>> /cfg/rmon/hist 1 (Select RMON History 1)
>> RMON History 1# ifoid 1.3.6.1.2.1.2.2.1.1.21
>> RMON History 1# rbnum 30
>> RMON History 1# intrval 120
>> RMON History 1# owner “Owner_History_1”
3. Apply and save the configuration.
>> RMON History 1# apply (Make your changes active)
>> RMON History 1# save (Save for restore after reboot)
1. Apply
3. Save
2. Verify