HP Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual

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Loop_ID

A hexadecimal value representing one of the 127 possible AL_PA values in an arbitrated loop.

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.

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.

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.

MIB

Management Information Base (B-series). An SNMP structure to help with device

management, providing configuration and device information.

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 a Simple Name Server (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.

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.

Nx_Port

A node port that can operate as an N_Port or NL_Port.

O

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

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
.

phantom device

A device that is not physically in an arbitrated loop but is logically included through the use of
a phantom address.

PLOGI

Port login. The port-to-port login process by which initiators establish sessions with targets.

pocket

A set of information transmitted across a network.

point-to-point

An FC topology that employs direct links between each pair of communicating entities.

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.

Port_Name

The unique identifier assigned to an FC port. It is communicated during login and port discovery.

POST

Power-on self-test. A series of diagnostic tests run by a switch after it is powered on.

primary FCS switch

Primary Fabric Configuration Server switch. The switch that actively manages the configuration
and security parameters for all switches in the fabric.

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