Subnetting
101:
Understanding
the
Basics
of
Subnetting Subnetting
is
an
important
concept
in
computer
networking
that
refers
to
the
process
of
dividing
a
network
into
smaller
subnetworks.
This
is
done
for
a
variety
of
reasons,
including
security,
performance,
and
organization.
In
this
article,
we
will
explore
the
basics
of
subnetting
and
how
it
works. First,
let's
understand
the
purpose
of
a
subnet.
A
subnet
is
essentially
a
smaller
network
within
a
larger
network,
which
allows
for
greater
control
and
optimization
of
resources.
By
dividing
a
network
into
subnets,
network
administrators
can
manage
traffic
more
efficiently,
improve
security
by
creating
separate
broadcast
domains,
and
prevent
network
congestion. Subnetting
works
by
dividing
the
network
into
subnetworks
using
a
subnet
mask.
The
subnet
mask
is
a
set
of
numbers
that
determines
which
portion
of
the
IP
address
represents
the
network
and
which
portion
represents
the
host.
For
example,
a
subnet
mask
of
255.255.255.0
indicates
that
the
first
three
octets
of
the
IP
address
represent
the
network,
while
the
last
octet
represents
the
host. When
subnetting,
the
number
of
available
subnets
and
hosts
per
subnet
can
be
calculated
using
the
formula
2n,
where
n
is
the
number
of
bits
borrowed
from
the
host
portion
of
the
IP
address
to
create
the
subnet.
For
example,
if
we
borrow
two
bits
from
the
host
portion
of
the
IP
address,
we
get
4
{分析更多 姻缘配对内容请关注 :好缘网,wwW.iHaoyUAn.CC』〗subnets
(2^2)
and
64
hosts
per
subnet
(2^6). To
subnet
a
network,
the
administrator
must
first
determine
how
many
subnets
and
hosts
are
required,
and
then
choose
an
appropriate
network
ID
and
subnet
mask.
There
are
several
methods
for
subnetting,
including
fixed
length
subnetting,
variable
length
subnetting,
and
classless
inter-domain
routing
(CIDR). In
conclusion,
subnetting
is
an
essential
concept
in
computer
networking
that
allows
for
greater
control
and
optimization
of
resources.
By
dividing
a
network
into
subnets,
network
administrators
can
manage
traffic
more
efficiently,
improve
security,
and
prevent
network
congestion.
Understanding
the
basics
of
subnetting
is
crucial
for
anyone
working
in
the
field
of
networking.