D
EFINING
T
HRESHOLD
F
ORMULAS
7-13
Elements of Threshold Formulas
Example:
Threshold Formulas
Some possible threshold formulas include:
•
R > 1000
•
(M > 5) OR (H > 500)
•
(S > 100) AND (R < 10000)
In the last formula, an event is triggered if (the data is changing at the rate greater than 100 per second) or (the
value is less than 10,000).
A formula follows this basic syntax:
(Variable Relation Value) Logical_Operator (Variable Relation Value)
Table 7-3 Elements of Threshold Formulas
Parameter Example
Description
Variable
R
H
M
S
Actual value of the data
Data rate per
hour
Data rate per
minute
Data rate per
second
Relation
>
<
>=
<=
==
!=
Greater than
Less than
Greater than or equal to
Less than or equal to
Equal
Not equal
Value
256
20040529
135501
Positive number (4 byte unsigned integer)
Date format (YYYYMMDD) for 29 May 2004
Time format (HHMMSS) for 1:55:01pm
Logical_Operator
AND
OR
Both statements must be true
Either statement may be true
Summary of Contents for ELITEVIEW
Page 1: ...MANAGEMENT GUIDE EliteViewTM 6 20 SNMP Based Network Management Softwarefor Windows ...
Page 2: ......
Page 8: ...iv ...
Page 20: ...INTRODUCTION 1 4 ...
Page 66: ...NETWORK TOOLS 5 18 ...
Page 106: ...COLLECTING DATA WITH LOG MANAGER 7 22 ...
Page 121: ...RMON UTILITIES 9 7 ...
Page 156: ...TYPICAL ELITEVIEW APPLICATIONS A 8 ...
Page 180: ...TECHNICAL REFERENCES D 4 ...
Page 188: ...SPECIFICATIONS F 4 ...
Page 222: ...ERROR MESSAGES I 30 ...
Page 231: ......