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local
area
network
(LAN).
A
network
that
connects
several
devices
into
a
limited
area
(such
as
a
single
building
or
campus)
and
that
can
be
connected
to
a
larger
network.
logical
unit
number
(LUN).
An
identifier
used
on
a
SCSI
bus
to
distinguish
among
devices
(logical
units)
with
the
same
SCSI
ID.
long
wavelength
(LWL).
A
type
of
fiber
optic
cabling
that
is
based
on
1300
mm
lasers
and
supports
link
speeds
of
1.0625
Gbps.
Can
also
refer
to
the
type
of
GBIC
or
SFP.
See
also
short
wavelength
.
loop.
A
configuration
of
devices
that
are
connected
to
the
fabric
by
way
of
a
fabric
loop
port
(FL_port)
interface
card.
loop
circuit.
A
temporary
bidirectional
communication
path
established
between
loop
ports
(L_ports).
loop
failure.
Loss
of
signal
within
a
loop
for
any
period
of
time,
or
loss
of
synchronization
for
longer
than
the
timeout
value.
loop_ID.
A
hexadecimal
value
representing
one
of
the
127
possible
arbitrated
loop
physical
address
(AL_PA)
values
in
an
arbitrated
loop.
loop
initialization.
The
logical
procedure
used
by
a
loop
port
(L_port)
to
discover
its
environment.
Can
be
used
to
assign
arbitrated
loop
physical
address
(AL_PA)
addresses,
detect
loop
failure,
or
reset
a
node.
loop
initialization
primitive
(LIP).
The
signal
used
to
begin
initialization
in
a
loop.
Indicates
either
loop
failure
or
resetting
of
a
node.
looplet.
A
set
of
devices
connected
in
a
loop
to
a
port
that
is
a
member
of
another
loop.
loop
master
timeout
value
(LM_TOV).
The
minimum
time
that
the
loop
master
waits
for
a
loop
initialization
sequence
to
return.
loop
mode.
One
of
the
modes
for
a
loop
port
(L_port).
An
L_port
is
in
loop
mode
when
it
is
in
an
arbitrated
loop
and
is
using
loop
protocol.
An
L_port
in
loop
mode
can
also
be
in
participating
mode
or
nonparticipating
mode.
See
also
loop
port
,
fabric
mode
,
participating
mode
,
and
nonparticipating
mode
.
loop
port
(L_port).
A
node
port
(NL_port)
or
fabric
port
(FL_port)
that
has
arbitrated
loop
capabilities.
An
L_port
can
be
either
in
fabric
mode
or
loop
mode.
See
also
fabric
mode
,
loop
mode,
nonparticipating
mode,
and
participating
mode.
loop
port
state
machine
(LPSM).
The
logical
entity
that
performs
arbitrated
loop
protocols
and
defines
the
behavior
of
loop
ports
(L_ports)
when
they
require
access
to
an
arbitrated
loop.
L_port.
See
loop
port
.
LPSM.
See
loop
port
state
machine
.
LSAN.
Logical
storage
area
network.
An
LSAN
enables
device
and
storage
connectivity
that
spans
two
or
more
fabrics.
LSR.
Link
state
record.
LSU.
Link
state
update.
LUN.
See
logical
unit
number
.
LWL.
See
long
wavelength
.
M
management
information
base
(MIB).
A
simple
network
management
protocol
(SNMP)
structure
to
help
with
device
management,
providing
configuration
and
device
information.
master
port.
As
relates
to
trunking,
the
port
that
determines
the
routing
paths
for
all
traffic
flowing
through
the
trunking
group.
One
of
the
ports
in
the
first
inter-switch
link
(ISL)
in
the
trunking
group
is
designated
as
the
master
port
for
that
group.
See
also
ISL
Trunking
.
MIB.
See
management
information
base
.
multicast.
The
transmission
of
data
from
a
single
source
to
multiple
specified
node
ports
(N_ports),
as
opposed
to
all
the
ports
on
the
network.
See
also
broadcast
and
unicast
.
multimode.
A
fiber
optic
cabling
specification
that
allows
up
to
500
m
(1640.5
ft)
between
devices.
N
name
server.
Frequently
used
to
indicate
Simple
Name
Server.
See
also
simple
name
server
.
NEMA.
National
Electrical
Manufacturers
Association.
network
time
protocol
(NTP).
An
Internet
standard
protocol
that
provides
synchronization
of
computer
clock
times
in
a
network
with
times
provided
by
radio
or
atomic
clocks
on
the
Internet.
NL_port.
See
node
loop
port
.
node.
A
Fibre
Channel
device
that
contains
a
node
port
(N_port)
or
node
loop
port
(NL_port).
node
loop
port
(NL_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
name.
The
unique
identifier
for
a
node,
communicated
during
login
and
port
discovery.
56
SAN16B-2
Installation,
Service,
and
User’s
Guide
Summary of Contents for SAN16B-2 - TotalStorage Express Model Switch
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