Technical data

Brocade SilkWorm 4100 Hardware Reference Manual Glossary-17
Publication Number: 53-0000563-02
key pair In public key cryptography, a pair of keys consisting of an entity's public and private key. The public
key can be publicized, but the private key must be kept secret. See also public key cryptography.
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 either Fabric Mode or Loop Mode.
LAN Local area network. A network in which transmissions typically take place over fewer than 5 kilometers
(3.4 miles).
latency The time required to transmit a frame. Together, latency and bandwidth define the speed and capacity of
a link or system.
LED Light-emitting diode. Used to indicate the status of elements on a switch.
LIFA Loop-initialization fabric-assigned frame. Contains a bitmap of all fabric-assigned AL_PAs and is the
first frame transmitted in the loop initialization process after a temporary loop master has been selected.
LIHA Loop-initialization 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 master has been
selected.
LILP Loop-initialization loop-position frame. The final frame transmitted in a loop initialization process. A
returned LIRP contains an accumulation of all of the AL_PA position maps. This allows loop members
to determine their relative loop position. This is an optional frame and is not transmitted unless the
LIRP is also transmitted.
link control
facility
A termination, handling 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 signal used to begin initialization in a loop. Indicates either loop
failure or node resetting.
LIPA Loop-initialization previously assigned. The device marks a bit in the bitmap if it did not log in with the
fabric in a previous loop initialization.
LIRP Loop-initialization report position frame. The first frame transmitted in the loop initialization process
after 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. This is an optional frame.
LISA Loop-initialization soft-assigned frame. The fourth frame transmitted in the loop initialization process
after a temporary loop master has been selected. L_Ports that have not selected an AL_PA in a LIFA,
LIPA, or LIHA frame select their AL_PA here.
LISM Loop-initialization select master frame. The first frame transmitted in the initialization process when
L_Ports select an AL_PA. LISM is used to select a temporary loop master or the L_Port that will
subsequently start transmission of the LIFA, LIPA, LIHA, LISA, LIRP, or LILP frames.