Configuration Guide Configuring RMON
Interval: Indicates the sampling interval, with the unit of seconds and the value ranging from 1 to
2,147,483,647.
absolute: Indicates that the sampling type is absolute value sampling, that is, variable values are directly
extracted when the sampling time is up.
delta: Indicates that the sampling type is changing value sampling, that is, changes in the variable values
within the sampling interval are extracted when the sampling time is up.
rising-threshold value: Sets the upper limit of the sampling quantity (value), with the value ranging from
-2,147,483,648 to +2,147,483,647.
event-number: Indicates that an event with the event number of event-number is triggered when the upper
limit or lower limit is reached.
falling-threshold value: Sets the lower limit of the sampling quantity (value), with the value ranging from
-2,147,483,648 to +2,147,483,647.
owner ownername: Indicates the entry creator, that is, ownername, which is a case-sensitive string of 1-63
characters.
Global configuration mode
Values of configured alarm entry parameters can be changed, including alarm variables, sampling type,
entry creator, sampling interval, upper/lower limit of the sampling quantity, and relevant trigger events.
Configuration Example
 Configuring RMON Alarm
Assume that SNMPv1 runs on the NMS, the community name used for accessing the settings is public, with
the attribute of read-write, and the IP address used by the NMS to receive trap messages is 3.3.3.3.
Assume that the OID value of unknown protocol packets received by monitored interface GigabitEthernet0/3
is 1.3.6.1.2.1.2.2.1.15.3, the sampling mode is relative sampling, and the sampling interval is 60 seconds.
When the relative sampling value is larger than 100 or lower than 10, event 1 and event 2 are triggered
respectively. In event 1, a trap message is transmitted and the event is logged. In event 2, the event is only
logged.
The configuration of the RMON agent is completed on the terminal. The RMON agent is connected to the
NMS and is connected to the server through interface GI0/1. The RMON agent needs to monitor the count
of unknown protocol packets received by interface GI0/1. The sampling interval is 60 seconds. When the
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