6 – Managing Ports
Configuring Ports
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6.4.3
Port Types
To display port type status, open the View menu, and select View Port Types.
Table 6-7 lists the possible port types and their meanings. The ports can be
configured to self-discover the proper type to match the device or switch to which
it is connected. The Running Type field on the Port Properties dialog indicates the
port type that is currently active.
To change the port type, do the following:
1. Select one or more ports in the faceplate display.
2. Open the Port menu and select Port Properties to open the Port Properties
dialog.
3. Select the Port Type option from the drop-down list.
4. Click the OK button to write the new port type to the switch.
Table 6-7. Port Types
State Description
F_Port Fabric port — supports a single public device (N_Port).
FL_Port Fabric loop port — self discovers a single device (N_Port) or a loop of up
to 126 public devices (NL_Port). 1/2/4-Gbps ports only.
G_Port Generic port — self discovers as an F_Port or an E_Port.
GL_Port Generic loop port — self discovers as an F_Port, FL_Port, or an E_Port.
GL_Port is the default port type. A single device on a public loop will
attempt to configure as an F_Port first, then if that fails, as an FL_Port.
1/2/4-Gbps ports only.
E_Port Expansion port — the mode that a G_Port or GL_Port is in when attached
by an ISL (inter-switch link) to another fibre channel switch.
Donor Donor port — allows buffer credits to be used by another port (1/2/4-Gbps
ports only)