Brocade Network Advisor SAN + IP User Manual v12.1.0 - Manual (Page 1575)

1528 Brocade Network Advisor SAN + IP User Manual
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IP historical performance monitoring
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FIGURE 663 Add Expressions dialog box
- Select the expression you want to edit or duplicate from the Expressions list and click Edit
or Duplicate.
The Edit Expression or Duplicate Expression dialog box displays with the details for the
selected expression. If you are duplicating, the Management application appends _copy to
the name of the expression.
3. Enter a name for the expression in the Name field.
4. (Optional) Enter text that you want to display in the legend area of the graph in the Unit field.
5. Enter a brief description in the Description field.
6. Select a MIB object from the Available MIB Objects tree structure.
A description of the MIB object displays in the MIB Details field.
7. Build your expression in the Expressions field using the operators above the field.
• MIB Object.Abs — The raw value of the MIB variable that is polled from the product will be
used in the SNMP expression calculation.
• MIB Object.Delta — Assuming the MIB value polled in the current polling period is M(T1)
and the value polled in the Previous polling period is M(T0), the MIB value to be used in
the expression is calculated using M(T1)- M(T0).