Technical data

4-8 Web Tools Administrator’s Guide
Publication Number: 53-0000522-09
Changing System Configuration Parameters
4
To perform a switch reboot
1. Launch the Switch Admin module as described on page 4-3.
2. Click the Firmware tab (see Figure 5-2 on page 5-4).
3. Click the Reboot radio button.
4. Click Apply.
Changing System Configuration Parameters
When you change system configuration parameters for the SilkWorm 12000 director or for a SilkWorm
24000 or 48000 configured with two logical switches, it is on a logical-switch basis. This means that for
each logical switch, you must change the system configuration parameters individually.
You must disable the switch before you can configure fabric parameters.
You can change the following system configuration parameters:
• switch fabric settings
• virtual channel settings
• arbitrated loop parameters
• system services
Configuring Fabric Parameters
You can configure the following fabric parameters using the Configure tab and Fabric subtab of the
Switch Admin module (as shown in Figure 4-3 on page 4-9):
• BB Credit
The number of buffers available to attached devices for frame receipt. The default BB Credit is 16.
The range is 1 through 27.
• R_A_TOV
Resource allocation timeout value (in milliseconds). This variable works with the E_D_TOV to
determine switch actions when presented with an error condition. The default is 10000. The
possible range is 4000 through 120000.
• E_D_TOV
Error detect timeout value (in milliseconds). This timer is used to flag a potential error condition
when an expected response is not received within the set time. The valid range is 1000 through
5000.
• Datafield size
The largest possible data field size (in bytes). The valid range is 256 through 2112.
• Switch PID Format
Select a switch PID format from one of the following:
- Format 1 (0-base, 256 encoding)
- Format 2 (16-base, 256 encoding)