[Contents] [Prev] [Next] [Index] [Report an Error]

# Defining a Discontinuity Check to Validate Delta Values (SRC CLI)

You can configure a monitor to use a discontinuity check to prevent sending false alarms when the value of the monitored object is reset between two samples.

Use a discontinuity check when the sampling type for a monitor is delta-value and the test type is boolean or threshold. You define a variable, called a discontinuity marker (a MIB object used to validate the delta, or difference, between values). Typically, the marker object is of the type TimeTicks, DateAndTime, or Timestamp.

To define a discontinuity check:

1. Configure an SNMP alarm with the sample type set to delta-value.

   See Configuring an SNMP Alarm on a C Series Controller (SRC CLI).

2. From configuration mode, access the configuration statements that configures a discontinuity check. For example, for an alarm named ifErrorsDelta:
   `
   [edit]
   user@host# edit snmp monitor alarm ifErrorsDelta delta-discontinuity-check
   `
3. Specify the name or object identifier (OID) of the discontinuity marker. For example:
   `
   [edit snmp monitor alarm sequence-check ifErrorsDelta delta-discontinuity-check]
   user@host# set variable ifTable.ifEntry.ifLastChange
   `

#### Related Topics

- Defining Events That Set Values for SNMP MIB Objects (SRC CLI)
- Example: SNMP Monitoring of Multiple MIB Objects
- Configuration Statements for Customized SRC SNMP Monitors
- SNMP Monitoring on C Series Controllers

[Contents] [Prev] [Next] [Index] [Report an Error]