g-12 McDATA® Sphereon™ 4500 Fabric Switch Product Manager User Manual
Glossary
IOCDS A data set that contains an I/O configuration definition built by the
IOCP.
IOCP See input/output configuration program.
IP address See internet protocol address.
IPL See initial program load.
ISL See interswitch link.
J
jumper cable Optical cable that provides physical attachment between two devices
or between a device and a distribution panel. Contrast with trunk
cable.
L
laser Light Amplification through Simulated Emissions of Radiation. A
device that uses the oscillation of atoms or molecules between energy
levels to generate a narrow, finely focused beam of light. The light has
a single wavelength or narrow spectrum of wavelengths and is
matched in phase and frequency.
LED Light-emitting diodes (LEDs) on switch FRUs and the front bezel that
provide visual indicators of hardware status or malfunctions.
latency When used in reference to a Fibre Channel switching device, latency
refers to the amount of time elapsed between receipt of a data
transmission at a switch’s incoming F_Port (from the originating
node 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.
LIN See link incident.
link Physical connection between two devices on a switched fabric.