Brocade 16Gb SAN Switch for HP BladeSystem c-Class User Guide

loop failure Loss of signal within a loop for any period of time; loss of synchronization for longer than the
time-out value.
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 AL_PA.
Loop_ID A hexadecimal value representing one of the 127 possible AL_PA values in an arbitrated loop.
See also AL_PA.
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 Gbps. May also refer to the type of transceiver. See also SWL.
M
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
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 an 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.
non-participating
mode
A mode in which an L_Port in a loop is inactive and cannot arbitrate or send 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 L_Port, AL_PA.
Nx_Port A node port that can operate as an N_Port or NL_Port.
Onboard
Administrator (OA)
The HP BladeSystem Onboard Administrator (OA) is the enclosure management processor,
subsystem, and firmware base used to support the HP BladeSystem c7000 or HP BladeSystem
c3000 and all the managed devices contained within the enclosure.
P
packet A set of information transmitted across a network.
participating mode A mode in which an L_Port in a loop has a valid AL_PA and can arbitrate, send frames, and
retransmit received transmissions.
path selection The selection of a transmission path through the fabric. HP switches use the FSPF protocol for
transmission path selection.
phantom address An AL_PA value assigned to a device that is not physically in the loop. Also known as phantom
AL_PA. See also AL_PA, phantom device.
phantom device A device that is not physically in an arbitrated loop but is logically included through the use of
a phantom address. See also phantom address.
PLOGI Port login. The port-to-port login process by which initiators establish sessions with targets. See
also FLOGI.
point-to-point An FC topology that employs direct links between each pair of communicating entities. See also
buffer-to-buffer flow control.
port cage The metal casing extending out of the FC port on the switch and into which a GBIC or SFP
transceiver can be inserted.
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