HP StorageWorks T5527A User Manual page 56

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 ???.
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 ???.
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 ???.
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 ???.
MIB Management Information Base. An SNMP structure to help with device
management, providing configuration and device information. See also ???.
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 ???.
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 An FC device that contains an N_Port or NL_Port.
non-participating A mode in which an L_Port in a loop is inactive and cannot arbitrate or send
mode frames, but can retransmit any received transmissions. This mode is entered if
there are more than 127 devices in a loop and an AL_PA cannot be acquired.
See also ???, ???.
Nx_Port A node port that can operate as an N_Port or NL_Port.
Onboard The HP BladeSystem Onboard Administrator (OA) is the enclosure management
Administrator
processor, subsystem, and firmware base used to support the HP BladeSystem
(OA) c7000 or HP BladeSystem c3000 and all the managed devices contained
within the enclosure.
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Glossary