Juniper JUNOSE 11.3, Configuration Manual

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Figure 13 on page 19 shows the structure of the ATM interface. For ATM, this can be
SONET, DS3, or E3 as supported by the different line modules. The major ATM interface
sits on top of the SONET/DS3/E3 resource, and the subinterfaces sit on top of the major
interface. The ATM subinterfaces connect to the IP interface layer.
Figure 13: Structure of the ATM Interface Design
Figure 14 on page 19 shows the structure of the ATM protocols. The physical layer (SONET
and/or DSx/Ex) is the foundation and provider of layer 1 framing service. The ATM layer
is on top and provides cell, circuit, and OAM services. The AAL5 layer provides a
frame-oriented interface to the ATM layer. The integrated local management interface
(ILMI) provides local management across the UNI.
Figure 14: Structure of ATM Protocol
Figure 15 on page 19 shows sample configuration parameters for a typical ATM interface
configuration.
Figure 15: ATM Interface Configuration Parameters
19 Copyright © 2010, Juniper Networks, Inc.
Chapter 1: Planning Your Network