Configuring Ocx/Stmx And Oc48 Interfaces; Configuring Channelized Ocx/Stmx Line Interfaces; Figure 7: Sonet Interfaces - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SYSTEM BASICS CONFIGURATION GUIDE 2010-10-04 Configuration Manual

JunosE 11.3.x System Basics Configuration Guide

Configuring OCx/STMx and OC48 Interfaces

Configuring Channelized OCx/STMx Line Interfaces

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The router supports IP/ATM, IP/Frame Relay, and IP/PPP over SONET on the OCx/STMx
interfaces. OC48 interfaces support IP/Frame Relay and IP/PPP over SONET, but do not
support ATM operation. This interface support allows service providers to accept incoming
optical connections or connect the router to the backbone network through optical
connections. The router's SONET implementation supports termination, statistic gathering,
and alarm surveillance at the section, line, and path layers of a SONET interface.

Figure 7: SONET Interfaces

The following sample command sequence configures POS for an OC3 interface. See
JunosE Link Layer Configuration Guide, for details.
host1(config)#interface pos 0/1
host1(config-if)#encapsulation ppp
host1(config-if)#clock source internal module
host1(config-if)#loopback line
host1(config-if)#pos framing sdh
host1(config-if)#mtu 1600
host1(config-if)#mru 1600
host1(config-if)#pos scramble-atm
The cOCx/STMx modules are generally used for circuit aggregration on the router. These
line modules support the following controllers over OC3/STM1 or OC12/STM4, depending
on the I/O module used with the line module:
Fractional T1/E1 over SONET/SDH virtual tributaries or T3
Unframed E1
Unchannelized DS3
Figure 8 on page 15 shows the configuration parameters for a sample T1 over DS3 interface
configuration.
Copyright © 2010, Juniper Networks, Inc.