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CLI-based Configuration Guide - Interface Management

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Concepts

Concepts

Multiplexing units

SDH contains basic multiplexing units, including container (C-n), virtual container (VC-n), tributary unit (TU-n), tributary unit group (TUG-n), administrative unit (AU-n), and administrative unit group (AUG-n). Here, n stands for the number of the unit level.

Container

It is used to carry service signals that are transmitted at different rates. G.709 defines specifications for five types of standard containers: C-11, C-12, C-2, C-3, and C-4.

VC

It is used to support connections between channel layers of the SDH and is an information terminal of SDH channels. VCs are classified into lower-order VCs and higher-order VCs. VC-3 in AU-3 and VC-4 are higher-order VCs.

TU and TUG

TU provides adaptation between lower-order and higher-order path layers. One TU or a set of multiple TUs, occupying a fixed position in the payload of the higher-order VC, is called a TUG.

AU and AUG

AU provides adaptation between higher-order channel layer and multiplex section layer. One AU and a set of multiple AUs, occupying a fixed position in the payload of STM-N, is called an AUG.

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Updated: 2019-03-06

Document ID: EDOC1100069331

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