HP 8.20q Fibre Channel Switch - Manual (Page 98)

98 Managing ports
Port types
To display the port type status, open the View menu and select View Port Types. Table 23 lists the possible
port types and their descriptions. Each port can be configured to self-discover the proper port type to
match the device or switch to which it is connected. The Running Type field on the Port Properties dialog
box indicates the port type that is currently active.
To change the port type:
1. Select one or more ports in the faceplate display.
2. Select Port > Port Properties to open the Port Properties dialog box.
3. Select the Port Type option from the drop-down list.
4. Click OK to write the new port type to the switch.
Diagnostics Prepares port for testing and prevents the port from
accepting a device login.
Downed Disables the port.
Table 22 Port administrative states
State Description
Table 23 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).
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.
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.
TR_Port Transparent Router port—Allows devices on a remote fabric
to be mapped to devices on the local 8/20q Fibre Channel
Switch fabric. TR_Ports do not support online port
diagnostics (see ” Testing ports ” on page 100).
NOTE: The 8/20q Fibre Channel Switch with TR ports
enabled is not supported by Simple SAN Connection
Manager (SSCM) at this time. SSCM may disrupt the TR
mappings, therefore rendering communication between the
8/20q Fibre Channel Switch and a remote fabric
inoperable. Users wishing to manage their SAN with SSCM
should not enable TR ports on the 8/20q Fibre Channel
Switch.
Donor Donor port—Allows buffer credits to be used by another
port.