Enabling Insistent Domain Id Mode; Configuring Virtual Channel Settings - Brocade Communications Systems StoreFabric SN6500B Administrator's Manual

Datafield size
Address mode
Sequence Level
Switching
Disable Device Probing Set this mode only if the switch N_Port discovery process (PLOGI, PRLI, INQUIRY) causes
Per-Frame Routing
Priority
Suppress Class F Traffic Applies only if VC-encoded address mode is also set. When selected, translative
Insistent Domain ID
Mode
WWN-based Persistent
PID

Enabling insistent domain ID mode

To enable insistent domain ID mode, perform the following steps.
1. Open the Switch Administration window as described in
2. Disable the switch as described in
3. Select the Configure tab.
4. Select the Fabric subtab.
5. Select the Insistent Domain ID Mode check box.
6. Click Apply.
7.

Configuring virtual channel settings

You can configure parameters for eight virtual channels (VC) to enable fine-tuning for a specific
application. You cannot modify the first two virtual channels because these are reserved for switch
internal functions.
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.
To configure the virtual channel settings, perform the following steps.
Web Tools Administrator's Guide
53-1002756-01
The largest possible data field size (in bytes). The range of valid values is from 256
through 2112.
Displays the addressing mode present in the switch.
Select this box to enable frames of the same sequence from a particular group to be
transmitted together. When this option is not selected, frames are transmitted interleaved
among multiple sequences. Under normal circumstances, sequence-level switching
should be disabled for better performance. However, some host adapters have issues
when receiving interleaved frames among multiple sequences.
an attached device to fail. When set, devices that do not register with the Name Server are
not present in the Name Server database.
Select whether to select per-frame routing priority. When enabled, the virtual channel ID is
used in conjunction with a frame header to form the final virtual channel ID.
addressing (which allows private devices to communicate with public devices) is disabled.
Set this mode to make the current domain ID insistent across reboots, power cycles, and
failovers. This mode is required fabric wide to transmit FICON data.
Set this mode to configure a PID persistently using a device's WWN. When the device logs
into the switch, the PID is bound to the device WWN. Refer to
assignment"
window" on page 31.
Enable the switch as described in
System configuration parameters
on page 39.
"Enabling and disabling a switch"
"Enabling and disabling a switch"
"WWN-based Persistent PID
"Opening the Switch Administration
on page 35.
on page 35.
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