Appendix B
Brocade Communications Systems Switch Troubleshooting
95
Sun StorEdge and Brocade Communications
Systems Port Descriptions and Differences
TABLE B-5
Sun StorEdge and Brocade Communications Systems Port Descriptions
Port Nomenclature
Function
E_Port
Expansion or inter-switch port. A type of switch port that can
be connected to an E_Port of another switch to, in effect, create
a cascading interswitch link (ISL).
F_Port
Fabric port. A fabric port that is point-to-point only, not loop
capable, and used to connect N_Ports to the switch.
FL_Port
Fabric loop port. A fabric port that is loop-capable and used to
connect NL_Ports to the switch.
G_Port
Generic port. This port can automatically configure as either an
E_Port or an F_Port. A port is defined as a G_Port when it is not
yet fully connected or has not yet assumed a specific function in
the fabric.
GL_Port
Generic loop port. This port can automatically configure as
either an E_Port, F_Port, or an FL_Port. A port is defined as a
G_Port when it is not yet fully connected or has not yet
assumed a specific function in the fabric.
TABLE B-6
Differences Between Sun StorEdge and Brocade Port Communications
Systems Port Nomenclature
Sun StorEdge Port
Brocade Port
Function
TL_Port
L_Port
Translated loop port/Loop port. This port enables
private devices to communicate with fabric or
public devices. In the Brocade switch, this address
translation is automatic. In Sun StorEdge
switches, the private device must be configured
on a TL_Port.
N/A
U_Port
Universal Port. This port can operate as an
E_Port, F_Port, or FL_Port. A port is defined as a
U_Port when it is not yet fully connected or has
not yet assumed a specific function in the fabric.
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