HP StorageWorks MSA 2/8 - SAN Switch, Reference Manual

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Glossary
963 Fabric OS Version 3.1.x/4.1.x Reference Guide
L_Port
Loop Port. A node port (NL_Port) or fabric port (FL_Port) that has arbitrated loop capabilities. An
L_Port can be in one of two modes:
■
Fabric mode: Connected to a port that is not loop capable, and using fabric protocol.
■
Loop mode: In an arbitrated loop and using loop protocol. An L_Port in loop mode can also be
in participating mode or non-participating mode.
See also Non-participating Mode, Participating Mode.
Latency
The period of time required to transmit a frame, from the time it is sent until it arrives. Together,
latency and bandwidth define the speed and capacity of a link or system.
LED
Light Emitting Diode. Used on HP switches to indicate the status of various switch elements.
Link Services
A protocol for link-related actions.
Link
As applies to Fibre Channel, a physical connection between two ports, consisting of both transmit
and receive fibers.
See also Circuit.
LIP
Loop Initialization Primitive. The signal used to begin initialization in a loop. Indicates either loop
failure or resetting of a node.
LIS_HOLD_TIME
Loop Initialization Sequence Hold Time. The maximum period of time for a node to forward a
loop initialization sequence.
LM_TOV
Loop Master Time-out Value. The minimum time that the loop master waits for a loop initialization
sequence to return.
Login BB_Credit
The number of receive buffers a receiving L_Port has available when a circuit is first established.
See also BB_Credit.
Loop Circuit
A temporary bidirectional communication path established between L_Ports.