19216811.liveKR.1N
Wireless-N Broadband Router 150Mbps / 1T1R
ATM
ATM stands for Asynchronous Transfer Mode. A transmission protocol
that breaks down user traffic into small fixed-sized cells, before
reassembling them after transmission. During transmission, cells from
different users are asynchronously intermixed, thereby maximizing
network resources. The ATM advantages voice and video stream and
data transmission in single network.
VPI
Stands for "Virtual Path Identifier." The VPI is an 8-bit header inside
each ATM cell that indicates where the cell should be routed. It is used
to identify the virtual path (a bundle of virtual channels that have the
same endpoint) to which the cell belongs as it travels through an ATM
network. As an ATM cell moves across a network, it typically passes
through several ATM switches. The VPI tells the switches where to
route the packet of information, or what path to take. Hence the name,
"virtual path identifier." The VPI is used in conjunction with the VCI, or
virtual channel identifier.
VCI
Stands for "Virtual Channel Identifier." The VCI indicates where an
ATM cell is to travel over a network. The VCI within each ATM cell
defines the fixed channel on which the packet of information should be
sent. It is a 16-bit field, compared to the VPI, which is only 8 bits. Since
this numerical tag specifies the virtual channel that each packet
belongs to, it prevents interference with other data being sent across
the network.
Bridging
This feature is working on the basic bridging protocol and physical layer.
In this device, the Modem serves as a bridge device, and does not
provide any protocol transfer and address filtering features. In this case,
the Modem actually plays the role as Hub.
IpoA
Usually the data packets are transferred via ATM network. In this
connection mode, user must have static IP address, subnet mask and
other parameters. Due to lack of user name and password
authentication, it cannot implement network administration and QoS
features.
PPPoA
Short for Point-to-Point Protocol over Asynchronous Transfer Mode
(ATM).
PPPoA relies on two widely accepted standards: PPP and
ATM. It is an end-to-end asymmetric digital subscriber line (ADSL)
architecture. IP packets travel from the PC over Ethernet to the DSL
modem, called the ADSL transceiver unit-remote (ATU-R). The ATU-R
adds the PPP protocol to the IP packets and transports them to the
carrier's Digital Subscriber Line Access Multiple (DSLAM) via ATM
PPPoE
Acronym for Point-to-Point Protocol over Ethernet. PPPoE relies on two
widely accepted standards: PPP and Ethernet. PPPoE is a
specification for connecting the users on an Ethernet to the Internet
through a common broadband medium, such as a single DSL line,
wireless device or cable modem. All the users over the Ethernet share
a common connection, so the Ethernet principles supporting multiple
users in a LAN combine with the principles of PPP, which apply to
serial connections.
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