Technical data

Glossary-12
private loop An arbitrated loop that does not include a participating FL_Port.
private loop
device
A device that supports a loop and can understand 8-bit addresses but does not log in to the fabric.
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.
protocol A defined method and set of standards for communication. Determines the type of error-checking, the
data-compression method, how sending devices indicate an end of message, and how receiving devices
indicate receipt of a message.
pstate Port State Machine.
public device A device that supports arbitrated-loop protocol, can interpret 8-bit addresses, and can log in to the
fabric.
public key The public half of a key pair. See also key, key pair.
Q
queue A mechanism for each AL_PA address that allows for collecting frames prior to sending them to the
loop.
QuickLoop A Brocade software product that allows multiple ports on a switch to create a logical loop. Devices
connected via QuickLoop appear to each other as if they are on the same arbitrated loop.
QuickLoop
Mode
Allows initiator devices to communicate with private or public devices that are not in the same loop.
R
R_RDY Receiver ready. A primitive signal indicating that the port is ready to receive a frame.
radius The greatest "distance" between any edge switch and the center of a fabric. A low-radius network is
better than a high-radius network.
RAID Redundant array of independent disks. A collection of disk drives that appear as a single volume to the
server and are fault tolerant through mirroring or parity checking. See also JBOD.
RCS Reliable Commit Service. Refers to Brocade-specific ILS command code.
RCS_SFC RCS Stage Fabric Config. Refers to Brocade-specific ILS command code.
RLS Read Link Status.
route As it applies to a fabric, the communication path between two switches. Might also apply to the specific
path taken by an individual frame, from source to destination. See also FSPF.
routing The assignment of frames to specific switch ports, according to frame destination.