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Glossary
Phantom Address
An AL_PA value that is assigned to an device that is not physically in the loop. Also known
as phantom AL_PA.
A twenty-bit public address created for an 8-bit loop device to allow public devices to
access it.
Phantom Device
A device that is not physically in an arbitrated loop, but is logically included through the
use of a phantom address.
PLOGI
Port Login; the port-to-port login process by which initiators establish sessions with targets.
Point-to-point
A Fibre Channel topology that employs direct links between each pair of communicating
entities. See also Topology.
Port Cage
The metal casing extending out of the optical port on the switch, and in which the SFP can
be inserted.
Port_Name
The unique identifier assigned to a Fibre Channel port. Communicated during login and
port discovery.
POST
Power On Self-Test
Private Device
A device that supports arbitrated loop protocol and can interpret 8-bit addresses, but cannot
log into the fabric.
Private Loop
An arbitrated loop that does not include a participating FL_Port.
Private NL_Port
An NL_Port that communicates only with other private NL_Ports in the same loop and
does not log into the fabric.
Protocol
A defined method and a set of standards for communication.
Public NL_Port
An NL_Port that logs into the fabric, can function within either a public or a private loop,
and can communicate with either private or public NL_Ports.
232
series of tests run by a switch after it is turned on.
; a
Core Switch 2/64 V4.1 Installation Guide
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