HP StorageWorks Multi-protocol Router Installation Guide (A7437-96003, September 2005)

Glossary100
H
hard address The AL_PA that an NL_Port attempts to acquire during loop initialization.
I
idle Continuous transmission of an ordered set over a fibre channel 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.
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).
K
K28.5 A special 10-bit character used to indicate the beginning of a transmission word that
performs fibre channel control and signaling functions. The first seven bits of the
character are the comma pattern.
kernel flash Flash (temporary) memory connected to the peripheral bus of the processor, and visible
within the processor's memory space. Also known as “user flash”.
L
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 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 period of 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 As applies to fibre channel, a physical connection between two ports, consisting of
both transmit and receive fibres.
link services A protocol for link-related actions.
LIP Loop initialization primitive. The signal used to begin initialization in a loop. Indicates
either loop failure or resetting of a node.