Hp Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual download pdf (Page 58)

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.

See also 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_ID A hexadecimal value representing one of the 127 possible AL_PA values in an

arbitrated loop. See also AL_PA.

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. See also

AL_PA.

LPSM Loop port state machine. The logical entity that performs arbitrated loop protocols

and defines the behavior of L_Ports when they require access to an arbitrated

loop. See also L_Port.

LWL Long wavelength. A type of fiber optic cabling that is based on 1300 mm lasers

and supports link speeds up to 2 Gb/s. May also refer to the type of transceiver.

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Hp Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual Page 58