Brocade Fabric OS Command Reference Guide v6.1.0 (53-1000599-02, June 2008)

Fabric OS Command Reference 93
53-1000599-02
configure
2
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.
Table 3 lists the virtual channel settings.
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 staged F_Port bring up. Logins per second specifies the number of logins
the switch accepts 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,
do not change 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 * 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
(milliseconds)
Number 0 0 to 10000