HP StorageWorks 4/16 Brocade SAN Glossary for Fabric OS v6.0.0 - Page 11

FFFFFD Well-known Fibre Channel address for a fabric controller. FFFFFE Well-known Fibre Channel address for a fabric F_Port. FFFFFF Well-known address for a broadcast alias-ID. Fibre Channel (FC) The primary protocol for building SANs. Unlike IP and Ethernet, Fibre Channel was designed to support the needs of storage devices of all types. Fibre Channel Network Address Translation (FC-NAT) A capability that allows devices in different fabrics to communicate when those fabrics have addressing conflicts. This is similar to the "hide-behind" AT used in firewalls. Fibre Channel Router Protocol (FCRP) A Brocade-authored standards-track protocol that enables LSAN switches to perform routing between different edge fabrics, optionally across a backbone fabric. FICON® A protocol used on IBM mainframes; FICON support enables a Brocade fabric to transmit FICON format data between FICON-capable servers and storage. FID Fabric ID. Unique identifier of a fabric in a metaSAN; the backbone fabric is also identified using a unique fabric ID. Fill word The primitive signal used by L_Ports to be transmitted between frames. FIPS Federal Information Processing Standard. Publicly announced standards developed by the US Federal government, for example, standards for encoding data and encryption standards. See also KAT. FL_Port A fabric loop port to which a loop attaches; it is the access to the fabric for NL_Ports on a loop. Flash Programmable nonvolatile RAM (NVRAM) memory that maintains its contents without power. FLOGI Fabric login. A process by which a node makes a logical connection to a fabric switch. F_Port A fabric port to which an N_Port is attached. Fractional bandwidth The partial use of a link to send data back and forth, with a maximum of 254 Class 4 connections per N_Port. Frame A data unit containing a start-of-frame (SOF) delimiter, header, payload, Cyclic Redundancy Check (CRC), and an End-Of-Frame (EOF) delimiter. The payload can be 0-2112 bytes, and the CRC is 4 bytes. Frame relay A protocol that uses logical channels, as those used in X.25; also known as "bandwidth on demand." Front domain A tier of virtual domains between the translation domains and the edge fabrics that allows FSPF multipathing to work as desired. FRU Field Replaceable Unit. A component that can be replaced in the field upon failure. Brocade SAN Glossary 1/29/2008 Page 11 of 29