Glossary
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SAN Switch 2/16 Version 3.1.x Installation Guide
Public Device
A device that can log into the fabric and support 20-bit addresses (or has 20-bit phantom
addresses created for it by the switch).
Public Loop
An arbitrated loop that includes a participating FL_Port, and may contain both public and
private NL_Ports.
QuickLoop
A feature that makes it possible to allow private devices within loops to communicate with
public and private devices across the fabric through the creation of a larger loop.
May also refer to the arbitrated loop created using this software. A QuickLoop can contain
a number of devices or looplets; all devices in the same QuickLoop share a single AL_PA
space.
R_A_TOV
Resource Allocation Time-out Value; the maximum time a frame can be delayed in the
fabric and still be delivered.
Route
As applies to a fabric, the communication path between two switches. May also apply to
the specific path taken by an individual frame, from source to destination.
Routing
The assignment of frames to specific switch ports, according to frame destination.
RR_TOV
Resource Recovery Time-out Value; the minimum time a target device in a loop waits after
a LIP before logging out a SCSI initiator.
RSCN
Registered State Change Notification; a switch function that allows notification of fabric
changes to be sent from the switch to specified nodes.
RX_ID
Responder Exchange Identifier. A 2-byte field in the frame header used by the responder of
the Exchange to identify frames as being part of a particular exchange.
SAN
Storage Area Network; a network of systems and storage devices that communicate using
Fibre Channel protocols. See also Fabric.
Sequence
A group of related frames transmitted in the same direction between two N_Ports.
Service Rate
The rate at which an entity can service requests.
