92
A
A
p
p
p
p
e
e
n
n
d
d
i
i
x
x
A
A
.
.
T
T
e
e
r
r
m
m
i
i
n
n
o
o
l
l
o
o
g
g
y
y
Abbreviation
Full Name
Meaning
ACS
Auto Configuration Server
The management server for TR-069 compliant
Customer Premises Equipment.
APN
Access Point Name
APN identifies an IP packet data network (PDN), that a
mobile data user wants to communicate with. In
addition to identifying a PDN, an APN may also be
used to define the type of service, (eg. connection to
wireless application protocol (WAP) server, multimedia
messaging service (MMS)), that is provided by the
PDN.
CBR
Constant Bit Rate
CBR is used by connections that require a static
amount of bandwidth that is available during the
connection life time. This bandwidth is characterized
by Peak Cell Rate (PCR). Based on the PCR of the
CBR traffic, specific cell slots are assigned for the VC in
the schedule table. The ATM always sends a single
cell during the CBR connection’s assigned cell slot.
CFI
Canonical Format
Indicator
CFI is always set to zero for Ethernet switches. CFI is
used for compatibility reason between Ethernet type
network and Token Ring type network.
DDNS
Dynamic DNS
Dynamic DNS is a method, protocol, or network service
that provides the capability for a networked device,
such as, a router or computer system using the Internet
Protocol Suite, to notify a Domain Name System (DNS)
name server to change, in real time, the active DNS
configuration of its configured hostnames, addresses or
other information.
DHCP
Dynamic Host
Configuration Protocol
DHCP is an auto-configuration protocol used on IP
networks. DHCP allows a computer to be configured
automatically, eliminating the need for intervention by a
network administrator. It also provides a central
database for keeping track of computers that have
been connected to the network. This prevents two
computers from accidentally being configured with the
