S e n d c o m m e n t s t o n e x u s 3 k - d o c f e e d b a c k @ c i s c o . c o m
-SM-176
Cisco Nexus 3000 Series NX-OS System Management Command Reference
OL-29557-04
Chapter System Management Commands
rmon hcalarm
Usage Guidelines
Before you use this command, you must have configured an SNMP user and enabled SNMP notifications
using the
snmp-server user
and
snmp-server enable traps
command, respectively.
You can configure a high-capacity RMON alarm on any integer-based SNMP MIB object. The MIB
object must be in standard dot notation. For example, 1.3.6.1.2.1.2.2.1.17 represents ifOutOctets.17.
Absolute samples take the current snapshot of the MIB object value. Delta samples take two consecutive
samples and calculate the difference between them. For example, you can set a delta type rising alarm
on an error counter MIB object. If the error counter delta exceeds this value, you can trigger an event
that sends an SNMP notification and logs the rising alarm event. This rising alarm does not occur again
until the delta sample for the error counter drops below the falling threshold.
You can associate a particular event to each high-capacity RMON alarm. RMON supports the following
event types:
•
SNMP notification—Sends an SNMP risingAlarm or fallingAlarm notification when the associated
high-capacity alarm triggers.
•
Log—Adds an entry in the RMON log table when the associated high-capacity alarm triggers.
•
Both—Sends an SNMP notification and adds an entry in the RMON log table when the associated
high-capacity alarm triggers.
You can specify a different event for a falling high-capacity alarm and a rising high-capacity alarm.
Examples
This example shows how to configure an RMON high-capacity alarm:
switch#
configure terminal
switch(config)#
rmon hcalarm 3 1.3.6.1.2.1.2.2.1.17.83886080 5 delta startupalarm 3
rising-threshold 5 1 falling-threshold 3 3 owner test
switch(config)#
Related Commands
Command
Description
copy running-config
startup-config
Saves the running configuration to the startup configuration file.
snmp-server enable
traps
Enables SNMP notifications on the switch.
snmp-server user
Configures an SNMP user.
show rmon
Displays information about RMON alarms and events.
