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2 – General Description
Fibre Channel Ports
59021-08 B 2-7
D
2.2.3
Port Types
SANbox2-16 switches support generic ports (G_Port, GL_Port), fabric ports
(F_Port, FL_Port), and expansion ports (E_Port). Switches come from the factory
with all ports configured as GL_Ports. Generic, fabric, and expansion ports
function as follows:
A GL_Port self-configures as an FL_Port when connected to a public loop
device, as an F_Port when connected to a single public device, or as an
E_Port when connected to another FC-SW-2 compliant switch.
A G_Port self-configures as an F_Port when connected to a single public
device, or as an E_Port when connected to another FC-SW-2 compliant
switch.
An FL_Port supports a loop of up to 126 public devices. An FL_Port can also
configure itself during the fabric login process as an F_Port when connected
to a single public device (N_Port).
An F_Port supports a single public device. If the device is a single device on
a loop, the GL_Port will attempt to configure first as an F_Port, then if that
fails, as an FL_Port.
E_Ports enable you to expand the fabric by connecting SANbox2-16 switches with
other FC-SW-2 compliant switches. SANbox2-16 switches self-discover all
inter-switch connections. Refer to ”Multiple Chassis Fabrics” on page 3-6 for more
information about multiple chassis fabrics. Refer to the SANbox2-8c/16 Switch
Management User’s Guide for more information about defining port types.