HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Master Glossary (AA-RW7NA-T - Page 14

firmware firmware watermarking flash FLOGI FL_Port FMPS FOTP FPD FPGA F_Port fractional bandwidth frame Frame Relay F_RJT FRU FS FSP Software (programs or data) that has been written onto read-only memory devices, such as ROM, PROM, EPROM, and EEPROM. An HP StorageWorks switch feature that prevents an incompatible version of the HP Fabric OS to be downloaded to HP StorageWorks 2 GB switches. Programmable nonvolatile RAM (NVRAM) memory that maintains its contents without power. Fabric login. The process by which an N_Port determines whether a fabric is present and, if so, exchanges service parameters with it. See also PLOGI. Fabric loop port. A port that is able to transmit using fabric protocol and also has arbitrated-loop capabilities. Can be used to connect an NL_Port to a switch. See also F_Port and Fx_Port. Fabric management policy set. Fiber Optic Test Procedure. Standards developed and published by the Electronic Industries Association (EIA) under the EIA-RS-455 series of standards. Field-programmable device. Interchangeable with PLD. See PLD. Field-programmable gate array. An FPD that allows high logic capacity. Fabric port. The link control facility within the Fabric that attaches to an N_Port through a link. An F_Port is addressable by the N_Port attached to it, with a common well-known address identifier FFFFFE. Can be used to connect an N_Port to a switch. See also FL_Port, Fx_Port, link control facility. The partial use of a link to send data back and forth, with a maximum of 254 Class 4 connections per N_Port. The Fibre Channel structure used to transmit data between ports. Consists of a start-of-frame delimiter, header, optional headers, data payload, cyclic redundancy check, and end-of-frame delimiter. There are two types of frames: link control frames (transmission acknowledgements and so forth) and data frames. See also packet. A protocol that uses logical channels, as used in X.25. Provides very little error-checking ability. Discards the frames that arrive with errors. Allows a certain level of bandwidth between two locations (also called committed information rate, CIR) to be guaranteed by the service provider. If the CIR is exceeded for short periods (known as bursts), the network accommodates the extra data if spare capacity is available. Frame Relay is also called bandwidth on demand. Fabric port reject frame. A frame issued by the fabric to indicate that delivery of a frame is being denied, perhaps because a class is not supported, there is an invalid header, or no N_Port is available. Field replaceable unit. A component that can be replaced onsite. Fibre Channel service. A service that is defined by Fibre Channel standards and exists at a well-known address. For example, the Simple Name Server is a Fibre Channel service. See also FSP. Fibre Channel Service Protocol. The common protocol for all fabric services, transparent to the fabric type or topology. See also FS. 14 Glossary