DSE XH9950, Инструкция по установке и эксплуатации, Страница: 34 / 37

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IPoA (RFC 1577):
Classical IP and ARP over ATM. Considers ATM configured as a
Logic IP Sub-network(LIS) to replace Ethernet local LAN segments.
ISP:
Internet service provider. A company that allows home and corporate users to
connect to the Internet.
LAN:
Local area network. A limited distance (typically under a few kilometers or a
couple of miles) high-speed network (typically 4 to 100 Mbps) that supports many
computers.
MAC:
Media Access Control Layer. A sub-layer of the Data Link Layer (Layer 2) of
the ISO OSI Model responsible for media control.
MTU: Maximum Transmission Unit
NAT:
Network Address Translator as defined by RFC 1631. Enables a LAN to use
one set of IP address for internal traffic. A NAT box located where the LAN meets
the Internet provides the necessary IP address translation. This helps provide a sort
of firewall and allow for a wider address range to be used internally without danger of
conflict.
PPP:
Point-to-Point-Protocol. The successor to SLIP, PPP provides router-to-router
and host-to-network connections over both synchronous and asynchronous circuits.
PPPoA (RFC 2364):
The Point-to-Point Protocol(PPP) provides a standard method
for transporting multi-protocol datagrams over point-to-point links. This document
describes the use of ATM Adaptation Layer 5 (AAL5) for framing PPP encapsulated
packets.
PPPoE (RFC 2516): This document describes how to build PPP sessions and
encapsulate PPP packets over Ethernet. PPP over Ethernet (PPPoE) provides the
ability to connect a network of hosts over a simple bridging access device to a
remote Access Concentrator.
PVC:
Permanent Virtual Circuit. Connection-oriented permanent leased line circuit
between end-stations on a network over a separate ATM circuit.
RFC:
Request for Comments. The document series, begun in 1969, which describes
the Internet suite of protocols and related experiments. Not all RFCs describe
Internet standards, but all Internet standards are written up as RFCs
RFC 1483:
Multi-protocol encapsulation over AAL-5. Two encapsulation methods for
carrying network interconnect traffic over ATM AAL-5. The first method allows
multiplexing of multiple protocols over a single ATM virtual circuit. The protocol of a
carried PDU is identified by prefixing the PDU by an IEEE 802.2 Logical Link Control
(LLC) header. This method is in the following called "LLC Encapsulation". The
second method does higher-layer protocol multiplexing implicitly by ATM Virtual
Circuits (VCs). It is in the following called "VC Based Multiplexing".