phantom address

An AL_PA value assigned to a device that is not physically in

 

the loop. Also known as phantom AL_PA. See also AL_PA,

 

phantom device.

phantom device

A device that is not physically in an arbitrated loop but is

 

logically included through the use of a phantom address. See

 

also phantom address.

PLOGI

Port login. The port-to-port login process by which initiators

 

establish sessions with targets. See also FLOGI.

point-to-point

An FC topology that employs direct links between each pair of

 

communicating entities. See also buffer-to-buffer flow control.

port cage

The metal casing extending out of the FC port on the switch

 

and into which a GBIC or SFP transceiver can be inserted.

Port_Name

The unique identifier assigned to an FC port. It is communicated

 

during login and port discovery.

POST

Power-on self-test. A series of diagnostic tests run by a switch

 

after it is powered on.

primary FCS

Primary Fabric Configuration Server switch. The switch that

switch

actively manages the configuration and security parameters

 

for all switches in 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 in to the fabric.

public device

A device that supports arbitrated loop protocol, can interpret

 

8-bit addresses, and can log in to the fabric. See also

 

arbitrated loop.

public loop

An arbitrated loop that includes a participating FL_Port and

 

may contain both public and private NL_Ports. See also

 

arbitrated loop.

public NL_Port

An NL_Port that logs in to the fabric, can function within a

 

public or private loop, and can communicate with private or

 

public NL_Ports. See also private loop.

quad

A group of four adjacent ports that share a common pool of

 

frame buffers.

R_A_TOV

Resource allocation time-out value. The maximum time a frame

 

can be delayed in the fabric and still be delivered.

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