M2M
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
89
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settings
3.3
LAN
&
VLAN
This section provides a brief description of LAN and VLAN. It also explains how to create
and modify virtual LANs which are more commonly known as VLANs.
3.3.1
Ethernet
LAN
The
Local
Area
Network
(LAN)
can
be
used
to
share
data
or
files
among
computers
attached
to
a
network.
Following
diagram
illustrates
the
network
that
wired
and
interconnects
computers.
3.3.3
VLAN
The
VLAN
is
a
logical
network
under
a
certain
switch
or
router
device
to
group
lots
of
client
hosts
with
a
specific
VLAN
ID.
This
device
supports
both
Port
‐
based
VLAN
and
Tag
‐
based
VLAN.
In
Port
‐
based
VLAN,
all
client
hosts
belong
to
the
same
group
by
transferring
data
via
some
physical
ports
that
are
tagged
with
same
VLAN
ID
in
the
device.
The
ports
of
a
VLAN
form
an
independent
traffic
domain
in
which
the
traffic
generated
by
the
nodes
remains
within
the
VLAN.
However,
in
Tag
‐
based
VLAN,
all
packets
with
same
VLAN
ID
will
be
treated
as
the
same
group
of
them
and
own
same
access
property
and
QoS
property.
It
is
especially
useful
when
individuals
of
a
VLAN
group
are
located
at
different
floor
location.
The
VLAN
function
allows
you
to
divide
local
network
into
different
“virtual
LANs”.
In
some
cases,
ISP
may
need
router
to
support
“VLAN
tag”
for
certain
kinds
of
services
(e.g.
IPTV)
to
work
properly.
In
some
cases,
SMB
departments
are
separated
and
located
at
any
floor
of
building.
All
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