HP 316095-B21 - StorageWorks Edge Switch 2/24 Reference Manual page 201

Glossary
interface
Hardware, software, or both, linking systems, programs, or devices.
internet protocol address
Unique string of numbers (in the format xxx.xxx.xxx.xxx) that identifies a device on a
network.
interoperability
Ability to communicate, execute programs, or transfer data between various functional units
over a network.
interswitch link (ISL)
Physical E_Port connection between two Directors or Edge Switches in a fabric.
IP address
See internet protocol address.
IPL
See initial program load.
ISL
See interswitch link.
jumper cable
Optical cable that provides physical attachment between two devices or between a device and
a distribution panel. Contrast with trunk cable.
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 incident (LIN)
Interruption to a Fibre Channel link due to loss of light or other cause.
LIPS
Loop Initialization Primitives.
logical unit number (LUN)
In Fibre Channel addressing, a logical unit number is a number assigned to a storage device
which, in combination with the storage device's node port's World Wide Name, represents a
unique identifier for a logical device on a storage area network.
CLI reference guide for directors and edge switches Glossary–9