Brocade OS Command Reference Manual Supporting Fabric OS v6.0.0 (53-1000599-01, October 2007)

Fabric OS Command Reference 89
53-1000599-01
configure
2
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. The last two
parameters are related to the staged F_Port bring up. Logins per second specifies the number of
logins the switch will accept per second in staged F_port bring up. The Login stage interval
parameter specifies the stage interval in staged F_port bring up. Unless there are issues with
F_Port staging, leave default values.
TABLE 3 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 4 F_Port Login Parameters (* = multiplication symbol)
Field Type Default Range
Maximum logins per switch Number 16 t* the max
number of ports
1 to 126 * the
max number of
ports
Maximum logins per port Number 126 1 to 255
Logins per second: Number 0 0 to 100
Login stage interval
(milli-seconds):
Number 0 0 to 10000