HP StorageWorks 8/80 Brocade Web Tools Administrator's Guide v6.2.0 (53-100119 - Page 78

3 System configuration parameters ATTENTION The default virtual channel settings are already optimized for switch performance. Changing the default values can improve switch performance, but can also degrade performance. Do not change these settings without fully understanding the effects of the changes. VC Priority specifies the class of frame traffic given priority for a virtual channel. 1. Open the Switch Administration window as described on page 41. 2. Disable the switch as described on page 46. 3. Click the Configure tab. 4. Click the Virtual Channel subtab. 5. Type a value in the VC Priority field you want to change. Valid values for all fields are 2 or 3. 6. Click Apply. 7. Enable the switch as described on page 46. Configuring arbitrated loop parameters 1. Open the Switch Administration window as described on page 41. 2. Disable the switch as described in "Enabling and disabling a switch" on page 46. 3. Select the Configure tab. 4. Select the Arbitrated Loop subtab. 5. Select or clear the check boxes to enable or disable the corresponding arbitrated loop parameters. 6. Click Apply. 7. Enable the switch as described in "Enabling and disabling a switch" on page 46. Arbitrated loop parameters Configure the following arbitrated loop parameters on the Arbitrated Loop subtab of the Configure tab: Send Fan Frames Select this check box to specify that fabric address notification (FAN) frames are sent to public loop devices to notify them of their node ID and address. Always Send RSCN Following the completion of loop initialization, a remote state change notification (RSCN) is issued when FL_Ports detect the presence of new devices or the absence of pre-existing devices. Select this check box to issue an RSCN upon completion of loop initialization, regardless of the presence or absence of new or pre-existing devices. Do Not Allow AL_PA 0x00 Select this box to disable 0x00 as an AL_PA value. 50 Web Tools Administrator's Guide 53-1001194-01