HP StorageWorks 2/140 CLI reference guide for directors and edge switches - 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