Brocade Fabric OS Command Reference Manual (53-1000240-01, November 2006)

Fabric OS Command Reference Manual 2-99
Publication Number: 53-1000240-01
configure
2
Note: Enter commands in lowercase only; mixed case is for readability.
level; otherwise, the fabric will be segmented.
Note
A Brocade Extended Fabrics license is required to set this mode.
BB Credit The buffer-to-buffer (BB) credit represents the number of buffers available to
attached devices for frame receipt. The range of allowed values varies depending
on other system settings (see Unicast-only Operation).
Insistent Domain ID Mode
When this mode is set, the switch attempts to acquire from the fabric the domain
number programmed in its "Switch Fabric Settings", failing which the switch will
segment from the fabric.
Virtual Channel Settings
The switch enables fine-tuning for a specific application by configuring the parameters for eight virtual
channels. The first two virtual channels are reserved for switch internal functions and are not available
for modification.
The default virtual channel settings have already been 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.
The Virtual Channel Settings are as follows:
VC Priority specifies the class of frame traffic given priority for a virtual channel.
F_Port Login Parameters
Specify the F_Port login parameters to limit the number of virtual port logins. These are switch-wide
parameters applicable to all N_Port ID virtualization (NPIV) ports in the switch.
Table 2-4 Configure Command Virtual Channel Settings
Field Default Range
VC Priority 2
22 to 3
VC Priority 3
22 to 3
VC Priority 4
22 to 3
VC Priority 5
22 to 3
VC Priority 6
32 to 3
VC Priority 7
32 to 3
Table 2-5 F_Port Login Parameters
Field Type Default Range
Maximum logins per switch Number 15*ports 1 to 126*ports
Maximum logins per port Number 126 1 to 255