Alarm Configuration
If you have selected an object from a table which is indexed by some other means — for example, by ring number — you must be sure to assign the instance accordingly. If you’re not sure how a tabular object is instanced, you can use the MIB Tools utility (described in the Tools Guide) to query the object; all available instances for the object will be displayed. (Host and matrix table objects — which are indexed by MAC address — require special handling; see the Note which follows this step.)
If you have selected an object which is not part of a table, you must assign an instance value of 0.
You can use the MIB Tree display to determine which objects are tabular and which are
TIP not: objects which are part of a table will descend from a blue folder (which will have a “T” on it, and a name which will almost always include the word “table”); objects which are not will descend directly from a yellow folder. (Note: There may be one or more yellow folders in between the blue folder which contains the table and the leaf object you wish to use; however, those objects are still part of the table.)
Be sure you define your instance values carefully; if you neglect to set the instance correctly, you will receive the “Set failed; ensure variable is readable” error message when you click the Apply button to set your alarm.
Advanced Alarm Configuration |
