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List of terms

frame link monitoring (FLM)

Provides the ability to distinguish between physical line failure and customer premises equipment failure in the case of a system failure at the access to a Nortel Multiservice Switch frame relay node.

framed protocol

A set of formal rules describing how to transmit frames. HDLC framing uses a standard protocol for the sequential transmission of individual frames. Interrupting framing uses a modified-HDLC format that allows voice cells to interrupt the transmission of data frames, transmit the voice cell, and continue transmitting the data frame.

Framer

The Framer component controls link layer framing for application components sending and receiving data on a link interface. For frame relay applications, it is also through Framer that an application component is associated with a specific hardware link interface.

frame mode information (FMI)

The system responsible for maintaining the Nortel Multiservice Switch node- to-node connections. For example, FMI supports the following connections: Multiservice Switch node-to-Multiservice Switch node, Multiservice Switch node-to-DPN-100 access module, Multiservice Switch node-to-DPN-100 resource module.

frame relay IP server

A logical representation that allows multiple IP-enabled FrUnis on the same function processor to share a single protocol port on the virtual router.

frame relay multiplexor/demultiplexor

A Nortel Multiservice Switch component that can distinguish traffic from multiple frame relay peers for distribution to multiple applications in a Multiservice Switch node.

frame relay managed cut-through switching (MCS)

Afeature that provides bidirectional, point-to-point virtual connections between Nortel Multiservice Switch nodes at a specific quality of service (QOS). The MCS connection is a switched path that provides many-to-one multiplexing of connections for a data service.

frame relay service (FRS)

A streamlined ISO data link layer protocol. A frame relay network supports only core communications functions (such as transparency, multiplexing, and orderly delivery). This simplified processing (as opposed to traditional packet data protocols) permits higher speeds and lower delays for a given processing capability. Simplification is made possible by the assumed use of improved

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 Frame link monitoring FLM, Framed protocol, Framer, Frame mode information FMI, Frame relay IP server