•
•
•
•
•
•
It
It
essential
essential
•
•
In
In
PLC
PLC
(IPv4
(IPv4
PPTP
PPTP
people
people
information
information
it
it
exchange
exchange
search
The
search
The
assign
assign
but
but
layer
DHCP
layer
DHCP
•
•
most
most
needing
needing
hostnames)
hostnames)
RSVP
RSVP
domain
domain
•
•
domain
domain
•
•
IP
IP
IPv6)
IPv6)
authoritative
authoritative
of
of
| with
with
•
•
talk
talk
TLS/SSL
TLS/SSL
•
•
the
the
possible
possible
•
•
SDP
SDP
66.230.200.100).
66.230.200.100).
an
an
communicate
communicate
BGP
BGP
accepting
accepting
FDDI
FDDI
names
names
•
•
•
•
it
it
PPP
PPP
SSH
SSH
Internet
Internet
Wi-Fi
Wi-Fi
DNS
DNS
GPRS
GPRS
•
•
•
•
IRC
IRC
•
•
contemporary
contemporary
| model
5.
model
5.
Transport
Transport
Frame
Frame
•
•
addresses
addresses
domain
domain
•
•
layer
TCP
layer
TCP
•
•
L2TP
L2TP
for
for
•
•
a
a
registrar
registrar
•
•
names
names
URLs
URLs
stores
stores
lists
lists
…
3.
…
3.
subsidiary
subsidiary
Ethernet
Ethernet
GTP
GTP
•
•
SCTP
SCTP
In
In
several
several
layer
layer
and
and
•
•
| translates
translates
possible
possible
box:
box:
link
link
Relay
Relay
domain
domain
e-mail
e-mail
easy-to-remember
easy-to-remember
makes
makes
the
the
this
this
…
4.
…
4.
ISDN
ISDN
system
system
DCCP
DCCP
•
•
•
•
name
name
IMAP4
IMAP4
IP
IP
time.
time.
to:
to:
SONET/SDH
SONET/SDH
SOAP
SOAP
physical
physical
reasons,
reasons,
•
•
•
•
•
•
redirection
redirection
•
•
|