Technical data

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Ordered set A type of transmission word that occurs outside of frames, and is used to
manage frame transport and differentiate fibre channel control information
from data. See also Data word, Transmission word. Use 8b/10b mapping and
begin with the K28.5 character. They include frame delimiters (which mark
frame boundaries and describe frame contents), primitive signals (indicate
events), and primitive sequences (indicate or initiate port states).
Participating mode Mode in which an L_Port in a loop has valid AL_PA and can arbitrate, send
frames, and retransmit received transmissions. See also Nonparticipating
mode.
Path Selection The selection of a transmission path through the fabric.
Phantom device Device not physically in a loop but logically included by phantom address.
Phantom address AL_PA value assigned to device not physically in loop. Also called phantom
AL_PA.
PLOGI Port Login. Port-to-port login process by which initiators establish sessions
with targets. See also FLOGI.
Point-to-point Two fibre channel devices connected by a direct link. See also Topology.
Port_Name Unique FC identifier for port, communicated during login and port discovery.
POST Power On Self Test
.
Series of self-tests run after a switch is rebooted or reset
.
Private NL_Port NL_Port that does not log into the fabric and communicates only with private
NL_Ports in same loop.
Private device Device that supports arbitrated loop protocol and understands 8-bit
addresses, but cannot log into fabric.
Private loop An arbitrated loop with no fibre channel attachment.
Protocol A defined method and standards for communication.
Public NL_Port NL_Port that logs into the fabric, can function within public or private loops,
and can communicate with public or private NL_Ports.
Public device Device that supports arbitrated loop protocol, understands 8-bit addresses,
and can log into fabric.
Public loop An arbitrated loop attached to a switch.