HP StorageWorks 2.140 Director Switch - Manual (Page 213)

Optional Features
211 Director Element Manager User Guide
5. Set the Low BB_Credit Threshold.
Note: Using default settings for Low BB_Credit Threshold should work well in most
cases. This step is not required.
This is the percentage of time that the transmitting link has no BB_Credit.
This value is also used when determining routes for a transmit link. An ISL
that has no BB_Credit for longer than this time percentage cannot be the
recipient of traffic rerouted from other ISLs. Traffic on this ISL may be
rerouted by Open Trunking, even if the ISL is not congested.
— Click Default Threshold and a default value (1 to 99%) will appear in the
threshold field. If the default is enabled, you cannot enter values into the
field.
— Click in the threshold field and enter a value from 1 to 99.
6. Click Activate to enable these values on the director and close the dialog box.
Pop-Up Menu
Right-click columns in the Configuration Threshold table to display menu
options that globally change values in the column cells.
Use Algorithmic Threshold
Right-click in the column to display these options:
■ Set all to Default—Adds check marks to all check boxes in this column and
sets all cells of Threshold % column to default values.
■ Clear All—Clears all check boxes in this column and restores values in cells
of Threshold % column with previous values.
Threshold %
Right-click in the column to display these options:
■ Set All To xx—Sets all cells in this column to the value (xx) that you clicked.
■ Restore All—Sets all cells in the column to the previous values.