Rmon Group 3-Alarms; Alarm Mib Objects; Configuring Rmon Alarms - Lenovo RackSwitch G8264CS Application Manual

3. View RMON history for the port.
RMON Group 3—Alarms

Alarm MIB objects

Configuring RMON Alarms

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RS 8264CS(config)# show rmon history
RMON History group configuration:
Index IFOID
----- -----------------------
1 1.3.6.1.2.1.2.2.1.1.1
Index
----- ----------------------------------------------
1 rmon port 1 history
The RMON Alarm Group allows you to define a set of thresholds used to
determine network performance. When a configured threshold is crossed, an
alarm is generated. For example, you can configure the switch to issue an alarm if
more than 1,000 CRC errors occur during a 10‐minute time interval.
Each Alarm index consists of a variable to monitor, a sampling time interval, and
parameters for rising and falling thresholds. The Alarm Group can be used to track
rising or falling values for a MIB object. The object must be a counter, gauge,
integer, or time interval.
Use one of the following commands to correlate an Alarm index to an Event index:
RS 8264CS(config)# rmon alarm <alarm number> rising-crossing-index
<event number>
RS 8264CS(config)# rmon alarm <alarm number> falling-crossing-index
<event number>
When the alarm threshold is reached, the corresponding event is triggered.
The most common data types used for alarm monitoring are ifStats: errors,
drops, bad CRCs, and so on. These MIB Object Identifiers (OIDs) correlate to the
ones tracked by the History Group. An example statistic follows:
1.3.6.1.2.1.5.1.0 – mgmt.icmp.icmpInMsgs
This value represents the alarm's MIB OID, as a string. Note that for non‐tables,
you must supply a .0 to specify end node.
Configure the RMON Alarm parameters to track ICMP messages.
RS 8264CS(config)# rmon alarm 1 oid 1.3.6.1.2.1.5.8.0
RS 8264CS(config)# rmon alarm 1 alarm-type rising
RS 8264CS(config)# rmon alarm 1 rising-crossing-index 110
RS 8264CS(config)# rmon alarm 1 interval-time 60
RS 8264CS(config)# rmon alarm 1 rising-limit 200
RS 8264CS(config)# rmon alarm 1 sample delta
RS 8264CS(config)# rmon alarm 1 owner "Alarm for icmpInEchos"
Interval Rbnum
-------- -----
120 30
Owner
Chapter 38: Remote Monitoring
Gbnum
-----
30
585