Configuring RMON
Downloading RMON MIB
Users can download RMON MIB from the page Pica8 Public MIB.
Configuring RMON
The RMON configuration contains two parts: RMON statistics and RMON alarm.
Configuring RMON Statistics
RMON statistics contains RMON ethernet statistics and history statistics:
- RMON Ethernet statistics monitors traffic with continuous statistics on the Ethernet interface. It counts the number of broadcast and multicast messages, the number of network conflicts, the number of CRC checksum error messages, the number of undersized (or oversized) data messages, the number of dropped messages, and the number of received packets in bytes.
- Configure RMON historical statistics function when you want to periodically collect data on a specified interface. It gathers statistics for the bandwidth utilization, the number of error packets, the total number of packets, etc.
Configuring RMON Ethernet Statistics
Step1Â Â Â Â Â Â Â Â Configure RMON ethernet statistics on a specified interface.
     set protocols snmp rmon statistics <entry-index> interface <interface-name>
Step2        Configure the owner’s name of the RMON ethernet statistics table.
          set protocols snmp rmon statistics <entry-index> owner <string>
Step3Â Â Â Â Â Â Â Â Commit after completing all the above configurations.
          commit
Step4Â Â Â Â Â Â Â Â View RMON Ethernet statistics information.
          run show rmon statistics [<entry-index>]
Configuring RMON History Statistics
Step1Â Â Â Â Â Â Â Â Â Configure RMON history statistics on a specified interface.
          set protocols snmp rmon history <entry-index> interface <interface-name>
Step2Â Â Â Â Â Â Â Â Configure the sampling interval of RMON history statistics.
          set protocols snmp rmon history <entry-index> interval <interval>
Step3Â Â Â Â Â Â Â Â Configure the history statistics table capacity, that is, the maximum number of records that the history table can hold.
          set protocols snmp rmon history <entry-index> buckets <number>
Step4        Configure the owner’s name of the RMON history statistics table.
          set protocols snmp rmon history <entry-index> owner <string>
Step5Â Â Â Â Â Â Â Â Commit after completing all the above configurations.
          commit
Step6Â Â Â Â Â Â Â Â View RMON history statistics information.
          run show rmon history [<entry-index>]
Configuring RMON Alarm
To configure RMON alarm function, users need to configure both RMON event definition function and RMON alarm threshold setting function. The RMON alarm threshold setting function configures the monitoring object and threshold. The RMON event definition function defines the action whether to record a log or send a trap information to the NMS when a RMON alarm event triggered.
Configuring RMON Event
Step1Â Â Â Â Â Â Â Â Configure the community for the RMON event.
          set protocols snmp rmon event <entry-index> community <community>
Step2Â Â Â Â Â Â Â Â Configure the RMON event action type.
          set protocols snmp rmon event <entry-index> type <none | log | trap | log-trap>
Step3Â Â Â Â Â Â Â Â Enable SNMP trap. If the event is triggered and the event action type is trap or log- trap, an SNMP trap will be sent to the management station. The value of community and security-name here should be the same as the community in step 1.
          set protocols snmp community <community>
          set protocols snmp trap-group targets <ip_address> security-name <security-name>
Step4Â Â Â Â Â Â Â Â Configure the description for the RMON event.
          set protocols snmp rmon event <entry-index> description <event_description>
Step5        Configure the owner’s name of the RMON event.
          set protocols snmp rmon event <entry-index> owner <owner>
Step6Â Â Â Â Â Â Â Â Commit after completing all the above configurations.
          commit
Step7Â Â Â Â Â Â Â Â View RMON event and event log information.
          run show rmon events [<entry-index>]
          run show rmon eventlog [<entry-index>]
Configuring RMON Alarm
Step1Â Â Â Â Â Â Â Â Configure the OID of the RMON alarm.
          set protocols snmp rmon alarm <entry-index> variable <oid-variable>
Step2Â Â Â Â Â Â Â Â Configure the sampling type of RMON alarm.
          set protocols snmp rmon alarm <entry-index> sample-type <absolute | delta>
Step3Â Â Â Â Â Â Â Â Configure the sampling interval of RMON alarm.
          set protocols snmp rmon alarm <entry-index> interval <interval>
Step4Â Â Â Â Â Â Â Â Configure the rising threshold of the RMON alarm, and the event to fire when the rising threshold is crossed.
          set protocols snmp rmon alarm <entry-index> rising-threshold <alarmRisingThreshold>
          set protocols snmp rmon alarm <entry-index> rising-event-index <alarmRisingEventIndex>
Step5Â Â Â Â Â Â Â Â Configure the falling threshold of the RMON alarm, and the event to fire when the falling threshold is crossed.
          set protocols snmp rmon alarm <entry-index> falling-threshold <alarmFallingThreshold>
          set protocols snmp rmon alarm <entry-index> falling-event-index <alarmFallingEventIndex>
Step6        Configure the owner’s name of the RMON alarm.
          set protocols snmp rmon alarm <entry-index> owner <owner>
Step7Â Â Â Â Â Â Â Â Commit after completing all the above configurations.
          commit
Step8Â Â Â Â Â Â Â Â View RMON alarms information.
          run show rmon alarms [<entry-index>]
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