IBM AA-RWF3A-TE - Manual (Page 151)

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 ???.
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 ???.
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. See also SWL .
master port The port that determines the routing paths for all traffic flowing
through a trunking group. One of the ports in the first ISL in the
trunking group is designated as the master port for that group.
See also ISL trunking .
MIB Management Information Base. An SNMP structure to help
with device management, providing configuration and device
information. See also SNMP .
multicast The transmission of data from a single source to multiple
specified N_Ports (as opposed to all ports on the network).
N_Port Node port. A port on a node that can connect to an FC port
or to another N_Port in a point-to-point connection.
name server A term frequently used to indicate a Simple Name Server
(SNS). See also SNS .
NL_Port Node loop port. A node port that has arbitrated loop
capabilities. Used to connect an equipment port to the fabric
in a loop configuration through an FL_Port. See also node .
node An FC device that contains an N_Port or NL_Port.
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