HP StorageWorks Fabric OS 5.X Master Glossary (AA-RW7NA-TE, September 2005)

K28.5 A special 10 -bit character that ind icates the beginning of a transmission word
that performs Fibre Channel c ontrol and signaling functions. The first seven bits
of the character are the comma pattern.
See also comma.
key A string of data (usually a numeric value) shared between two entities and used
to control a cryptographic algorithm.
See also key pair.
key pair In public key cryptography, a pair of keys consisting of a n entity’s public and
private key. The public key can be publicized, but the p rivate key must be kept
secret .
See also key and public key cryptography.
LAN Local area n et work. A network in which transmissions typic ally take place over
fewer than 5 kilometers (3.4 miles) .
See also MAN and WAN.
latency The time require d to transmit a frame. Tog ether, latency and bandwidth define
the speed and capacity of a link or system.
leaf class In SMI, a class that has no subclasses.
See also SMI.
LED Light-emitting diode. A device used to indicate the status of elements on a switch.
LIFA Loop-initialization fabric-assigned frame. A frame that contains a bitmap of all
fabric-assigned AL_PAs and is the first frame transmitted in the loop initialization
process a fter a temporary loop master has been selected.
LIHA Loop-initializatio n hard-assigned frame. A hard-assigned AL_PA that is indicated
by a bit set and is the third frame transmitted in the loop initialization process
after a temporary loop m aster has been selected.
LILP Loop-initialization loop-position frame. The last frame transmitted in a loop
initialization process after all L _Ports have selected an AL_PA. This frame is
transmitted around the Loop so that all L_Ports can determine the relative position
of all other L_Ports a round the Loop. L_Port support for this frame is optional,
and this frame is not transmitted unless the LIRP is also transmitted.
See also LIRP.
link control fac ilit y A link hardware facility that attaches to an end of a link and manages
transmission and reception of data. It handles the physical and logical control
of the Fibre Channel link for each mode.
Link Services A protocol for link-related actions.
LIP Loop initialization primitive. The s ignal used to begin initialization in a loop.
Indicates either loop failure or node resetting.
LIPA Loop-initialization previously assigned fra me. The second frame transmitted in
the loop initialization process after a temporary Loop master has been selected.
L_Por ts that had an AL_PA prior to the loop initialization will select their AL_PA’s
in this frame as it m akes its way around the loop.
LIRP Loop-initialization report position frame. The first frame transmitted in the loop
initialization process af ter all L_Ports have selected an AL_PA.The LIRP gets
transmitted around the loop so all L_Ports can report their relative physical
position. Thisisanoptionalframe.
See also LILP.
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Glossary