HP AA979A - StorageWorks SAN Switch 2/8V, Administrator'S Manual, Page: 452 / 465

454 Using Remote Switch
You might be required to reconfigure the following parameters, depending on the gateway requirements:
• R_A_TOV: Specify a Resource Allocation Timeout Value compatible with your gateway device.
• E_D_TOV: Specify a Error Detect Timeout Value compatible with your gateway device
• Data field size: Specify the maximum Fibre Channel data field reported by the fabric. Verify the
maximum data field size the network-bridge can handle. Some bridges might not be able to handle a
maximum data field size of 2112.
• BB credit: Specify the number of Buffer-to-Buffer credits for Nx_port devices.
• Suppress Class F Traffic: Use this parameter to disable class F traffic. Some network-bridge devices
might not have a provision for handling class F frames. In this case, the transmission of class F frames
must be suppressed throughout the entire Remote Switch fabric.
To set the access and reconfigure these parameters:
1. Connect to the switch and log in as admin.
2. Enter the
switchDisable
command to disable the switch.
3. Enter the
configure
command.
4. At the Fabric Parameters prompt enter yes .
5. Press Enter to scroll through the Fabric Parameters without changing their values, until you reach
the parameter you want to modify.
6. Specify a new parameter value that is compatible with your gateway device.
7. Press Enter to scroll through the remainder of the configuration parameters. Make sure that the
configuration changes are committed to the switch.
8. Repeat for all switches in the fabrics to be connected through a gateway device. These parameters must
be identical on each switch in the fabric, and between fabrics connected through the gateway device.
This example shows how to modify the data field size and suppress class F traffic on a switch:
switch:admin> switchdisable
switch:admin> configure
Configure...
Fabric parameters (yes, y, no, n): [no] yes
Domain: (1..239) [3]
R_A_TOV: (4000..120000) [10000]
E_D_TOV: (1000..5000) [2000]
Data field size: (256..2112) [2112] 1000
Sequence Level Switching: (0..1) [0]
Disable Device Probing: (0..1) [0]
Suppress Class F Traffic: (0..1) [0] 1
VC Encoded Address Mode: (0..1) [0]
Per-frame Route Priority: (0..1) [0]
Long Distance Fabric: (0..1) [0]
BB credit: (1..16) [16]
Virtual Channel parameters (yes, y, no, n): [no]
Zoning Operation parameters (yes, y, no, n): [no]
RSCN Transmission Mode (yes, y, no, n): [no]
NS Operation Parameters (yes, y, no, n): [no]
Arbitrated Loop parameters (yes, y, no, n): [no]
System services (yes, y, no, n): [no]
Portlog events enable (yes, y, no, n): [no]
Committing configuration...done.
switch:admin>