Citrix Systems Network Router NETSCALER 9.3 User Manual

The NetScaler provides a set of condition entities called SNMP alarms. When the
condition set for an SNMP alarm is met, the NetScaler generates SNMP traps messages
that are sent to the configured trap listeners. For example, when the LOGIN-FAILURE
alarm is enabled, a trap message is generated and sent to the trap listener whenever
there is a login failure on the NetScaler appliance.

You can assign an SNMP alarm with a severity level. When you do this, the
corresponding trap messages are assigned that severity level.

The following are the severity levels, defined in the NetScaler, in decreasing order of
severity.

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Critical

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Major

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Minor

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Warning

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Informational

For example, if you set a Warning severity level for the SNMP alarm named LOGIN-
FAILURE, the trap messages generated when there is a login failure will be assigned
with the Warning severity level.

You can also configure an SNMP alarm to log the corresponding trap messages
generated whenever the condition on that alarm is met.

At the NetScaler command prompt, type the following commands to configure an SNMP
alarm and verify the configuration:

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set snmp alarm <alarm Name> [-thresholdValue <positive_integer> [-normalValue
<positive_integer>]] [-time <secs>] [-state ( ENABLED | DISABLED )] [-severity
<severity>] [-logging ( ENABLED | DISABLED )]

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sh snmp alarm <alarm Name>

Severity level of this alarm. Possible values: Critical, Major, Minor, Warning,
Informational. Default: Informational.

Enable logging of SNMP trap messages by Syslog. Possible values: ENABLED and
DISABLED.

Chapter 2

SNMP

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