embedded web server user guide

Glossary–22 embedded web server user guide
Glossary
IS
See information services.
ISL
See interswitch link.
ISL hop
Interswitch link hop. See hop.
isolated E_Port
Isolated expansion port. See segmented expansion port
isolated expansion port
Isolated E_Port. See segmented expansion port.
laser
Laser is an acronym for light amplification by stimulated emission of radiation. A device that
produces a very powerful narrow beam of coherent light of a single wavelength by simulating
the emissions of photons from atoms, molecules, or ions.
latency
Amount of time elapsed between receipt of a data transmission at a switch’s incoming fabric
port (F_Port) from the originating node port (N_Port) to retransmission of that data at the
switch’s outgoing F_Port to the destination N_Port. The amount of time it takes for data
transmission to pass through a switching device.
LED
See light-emitting diode(light-emitting diode).
light-emitting diode
LED. A semiconductor chip that emits visible or infrared light when electricity passes through
it. LEDs are used on Switch or Director field-replaceable units (FRUs) and the front bezel to
provide visual indications of hardware status or malfunctions.
LIN
See link incident.
link
Physical connection between two devices on a switched fabric. A link consists of two
conductors, one used for sending and the other for receiving, thereby providing a duplex
communication path.
link incident
LIN. Interruption to link due to loss of light or other causes. See also link incident alerts.
link incident alerts
A user notification, such as a graphic symbol in the Product Manager application Hardware
view that indicates that a link incident has occurred. See also link incident.