Juniper JUNOSE 10.0.X PHYSICAL LAYER, Configuration Manual

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Chapter 4
Configuring Channelized OCx/STMx
Interfaces
Use the procedures described in this chapter to configure channelized OC3/STM1
and OC12/STM4 (cOCx/STMx) interfaces on E-series routers.
This chapter contains the following sections:
■
Overview on page 109
■
Platform Considerations on page 111
■
References on page 117
■
Before You Configure an Interface on page 118
■
Configuration Tasks on page 119
■
Configuration Examples on page 141
■
Testing Interfaces on page 145
■
Monitoring Interfaces on page 153
Overview
Channelized OC3/STM1 and OC12/STM4 interfaces are supported by the modules
described in this chapter.
This section describes the features of cOCx/STMx interfaces.
SONET APS and SDH MSP
The router supports Automatic Protection Switching (APS) and Multiplex Section
Protection (MSP) on selected I/O modules that provide SONET/SDH connections. This
feature provides a redundant connection if a primary SONET/SDH connection fails.
For a list of I/O modules that support APS/MSP, see
ERX Module Guide, Appendix A,
Module Protocol Support . For an overview of APS/MSP, see “Bidirectional Switching
Mode” on page 75 in “Configuring Unchannelized OCx/STMx Interfaces” on page
73.
MDL/FDL Support
Interfaces on cOCx/STMx line modules support maintenance data link (MDL) messages
at the T3 level and facilities data link (FDL) messages at the T1 level. For a list of the
Overview
■ 109