McDATA 4300 - Manual (Page 49)

2
Installation Tasks 2-15
Installation Tasks
c. Click the check box in the FAN column to enable or disable the
fabric address notification (FAN) feature (default is enabled).
A check mark indicates FAN is enabled. When enabled, an
FL_Port transmits FAN frames after loop initialization to
verify FC-AL devices are still logged in.
d. Select from the drop-down list in the Type column to configure
the port type. Available selections are fabric port (F_Port),
expansion port (E_Port), generic port (G_Port), generic mixed
port (GX_Port), and fabric mixed port (FX_Port).
e. Select from the drop-down list in the Speed column to
configure the port transmission rate. Available selections are
auto-negotiate between speeds (Negotiate), 1.0625 gigabit per
second (Gbps) operation (1 Gb/sec), and 2.1250 Gbps
operation (2 Gb/sec).
2. Click OK to save and activate changes.
Configure Port
BB_Credit With the full-fabric PFE key enabled, the switch provides a port
buffer pool of 144 receive BB_Credits. Each port can be assigned
between two and 12 credits, provided the total credits allocated to all
ports does not exceed 144. The default value is five credits per port or
12 credits per port with the full-fabric PFE key enabled. Perform this
procedure to configure port receive BB_Credit:
1. Set all or a subset of user-specified ports offline. Refer to Set
Online State or Block or Unblock a Port for instructions.
2. Select Ports and RX BB_Credit from the Configure menu at any
view. The RX BB_Credit View displays.
3. Perform one of the following:
— To set all offline ports to default values, click Default.
— To set an offline port to a user-specified value, type the desired
value in the RX BB_Credit column.
4. Click OK to save and activate changes.
5. Set all or user-specified ports online. Refer to Set Online State (all)
or Block or Unblock a Port (specified ports) for instructions.