Hp Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual download pdf (Page 54)

FRU Field-replaceable unit. A component that can be replaced on site.

FS Fibre Channel Service. A service that is defined by FC standards and exists at a well-known

address. The Simple Name Server, for example, is an FC service.

FSP Fibre Channel Service Protocol. The common protocol for all fabric services; it is transparent to

the fabric type or topology.

FSPF Fabric shortest path first. HP routing protocol for FC switches.

Fx_Port A fabric port that can operate as an F_Port or FL_Port.

G_Port Generic port. A port that can operate as an E_Port or F_Port. A port is defined as a G_Port when

it is not yet connected or has not yet assumed a specific function in the fabric.

hard address The AL_PA that an NL_Port attempts to acquire during loop initialization.

idle Continuous transmission of an ordered set over an FC link when no data is being transmitted, to

keep the link active and maintain bit, byte, and word synchronization.

integrated fabric The fabric created by connecting multiple HP switches with multiple ISL cables, and configuring

the switches to handle traffic as a seamless group.

ISL trunking The distribution of traffic over the combined bandwidth of multiple ISLs. A set of trunked ISLs is

called a trunking group; the ports in a trunking group are called trunking ports.

isolated E_Port An E_Port that is online but not operational due to overlapping domain IDs or nonidentical

parameters (such as E_D_TOVs).

K28.5 A special 10-bit character that indicates the beginning of a transmission word that performs FC

control and signaling functions. The first seven bits are the common pattern.

kernel flash Flash (temporary) memory connected to the peripheral bus of the processor and visible within

the processor's memory space. Also called a user flash.

L_Port Loop port. A node port (NL_Port) or fabric port (FL_Port) that has arbitrated loop capabilities. An

L_Port can be in one of two modes:

• Fabric mode: Connected to a port that is not loop capable and is using fabric protocol.

• Loop mode: In an arbitrated loop and using loop protocol. An L_Port in loop mode can also

be in participating mode or non-participating mode.

latency The time required to transmit a frame from the time it is sent until it arrives. Together, latency and

bandwidth define the speed and capacity of a link or system.

link With respect to FC, a physical connection between two ports, consisting of both transmit and

receive fibers.

link services A protocol for link-related actions.

LIP Loop initialization primitive. The signal that begins initialization in a loop. It indicates either loop

failure or the resetting of a node.

LM_TOV Loop master time-out value. The minimum time that the loop master waits for a loop initialization

sequence to return.

loop failure Loss of signal within a loop for any period of time; loss of synchronization for longer than the

time-out value.

loop initialization The logical procedure used by an L_Port to discover its environment. Can be used to assign AL_PA

addresses, detect loop failure, or reset a node.

54 Glossary

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Hp Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual Page 54