Appendix
C:
Glossary
Intelinet
48
‐
Port
Gigabit
Ethernet
PoE+
Managed
Switch
User
Manual
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344
IMAP
IMAP
is
an
acronym
for
I
nternet
M
essage
A
ccess
P
rotocol.
It
is
a
protocol
for
clients
to
retrieve
messages
from
a
server.
IMAP
is
the
protocol
that
IMAP
clients
use
to
communicate
with
the
servers,
and
SMTP
is
the
protocol
used
to
transport
to
an
IMAP
server.
The
current
version
of
the
Internet
Message
Access
Protocol
is
IMAP4.
It
is
similar
to
Post
Office
Protocol
version
3
(POP3),
but
offers
additional
and
more
complex
features.
For
example,
the
IMAP4
protocol
leaves
your
messages
on
the
server
rather
than
downloading
them
to
your
computer.
If
you
wish
to
remove
your
messages
from
the
server,
you
must
use
your
client
to
generate
local
folders,
copy
messages
to
your
local
hard
drive,
and
then
delete
and
expunge
the
messages
from
the
server.
IP
IP
is
an
acronym
for
I
nternet
P
rotocol.
It
is
a
protocol
used
for
communicating
data
across
an
internet
network.
IP
is
a
"best
effort"
system,
which
means
that
no
packet
of
information
sent
over
is
assured
to
reach
its
destination
in
the
same
condition
it
was
sent.
Each
device
connected
to
a
Local
Area
Network
(LAN)
or
Wide
Area
Network
(WAN)
is
given
an
Internet
Protocol
address,
and
this
IP
address
is
used
to
identify
the
device
uniquely
among
all
other
devices
connected
to
the
extended
network.
The
current
version
of
the
Internet
protocol
is
IPv4,
which
has
32
‐
bits
Internet
Protocol
addresses
allowing
for
in
excess
of
four
billion
unique
addresses.
This
number
is
reduced
drastically
by
the
practice
of
webmasters
taking
addresses
in
large
blocks,
the
bulk
of
which
remain
unused.
There
is
a
rather
substantial
movement
to
adopt
a
new
version
of
the
Internet
Protocol,
IPv6,
which
would
have
128
‐
bits
Internet
Protocol
addresses.
This
number
can
be
represented
roughly
by
a
three
with
thirty
‐
nine
zeroes
after
it.
However,
IPv4
is
still
the
protocol
of
choice
for
most
of
the
Internet.
IPMC
IPMC
is
an
acronym
for
IP
M
ulti
C
ast.
IPMC
supports
IPv4
and
IPv6
multicasting.
IPMCv4
denotes
multicast
for
IPv4.
IPMCv6
denotes
multicast
for
IPv6.