MIB Viewer

smMlmThresholdCondition

OBJECT-TYPE
1.3.6.1.4.1.2.6.12.5.1.1.6
Access
read-write
Status
mandatory
Sub-identifiers
0
Condition operation for the threshold value. [type keyword] [statistics keyword] condition Allowed conditions are: =, >, >=, >+, <, <=, <-, !=, !, ~, ~=, !~, !~=, &, |, changes, doesNotChange, exists, and doesNotExist. The ~(LIKE) condition is for extended regular expression checking on strings. The style of the regular expression is of the format for the ed or egrep command. The ~(LIKE) is case insensitive, while the ~=(LIKE CASE) is case sensitive. The >+ and <- condition checks for a value increase(>+) above or a value decrease(<-) below the threshold value on consecutive polls. Once the condition is met the rearm condition is also checked on consecutive polls. The change condition causes a watchdog operation to be performed. That is, if the value changes between consecutive polls, the condition is satisfied. (The threshold value is ignored in this case). Similarly, the exist/doesNotExist checks for the actual existence of the MIB variable; this is useful for checking for the existence of rows in a table. The & and | conditions cause the MIB variable value to be ANDed/Ored with threshold value; if the result is nonzero, the condition is met and the trap and/or command to execute is performed. NOTE: Thresholds for Counter variables are computed by calculating the change(delta) in the sampled values and comparing this against the threshold value. In the case of Gauge and INTEGER variables, the actual value of the variable is checked against the threshold value. The statistics keywords 'iMax', 'iMin', 'iAvg', 'iSd', 'iVar', 'iRate', 'Max', 'Min', 'Avg', 'Sd', and 'Var' if placed in front of the condition (and separated from if by a space) allows the use of the interval or lifetime maximum, minimum, average, standard deviation, variance, and rate. These values are calculated for each MIB variable returned in the threshold. For the interval keywords the sampling interval is defined by the MIB variable: smMlmProgramControlSamplesPerInterval. For example, if the smMlmProgramControlSamplesPerInterval is 10 then the 'iAvg' keyword is the average value of the last ten samples returned to the threshold for each MIB value. The type keywords 'delta' and 'value', if placed in front of the condition or statistics keywords (and separated from it by a space) will override this default behavior. For example, a condition of 'value >' will cause threshold checking to be performed against the actual value rather than the change in the value even if the selected MIB variable is a Counter; a condition of 'delta >' causes the change in the variable (from the previous value) to be checked against the threshold, regardless of the type of the variable.
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