ATM Pseudowire Overview
An Asynchronous Transfer Mode (ATM) pseudowire acts as a Layer 2 circuit or service,
which allows the migration of ATM services to an MPLS packet-switched network without
having to provision the ATM subscriber or customer edge (CE) device. When you configure
an ATM pseudowire, the network between the customer edge (CE) routers appears
transparent to the CE routers, making it seem that the CE routers are directly connected
across a time-division multiplex (TDM) leased line. ATM pseudowires are primarily used
in an ATM service provider’s network to connect existing ATM switches across a higher
speed packet-switched network or to provide ATM backhaul services for remote access
to existing ATM networks.
On ACX series routers, you configure an ATM pseudowire with Layer 2 encapsulation for
Inverse Multiplexing for ATM (IMA).
Related
Documentation
Understanding Encapsulation on an Interface on page 104•
• Inverse Multiplexing for ATM (IMA) Overview on page 184
• Configuring Inverse Multiplexing for ATM (IMA) on page 185
• Pseudowire Overview for ACX Series Universal Access Routers on page 590
• TDM Pseudowires Overview on page 600
• Ethernet Pseudowire Overview on page 596
Example: ATM Pseudowire Base Configuration
•
Requirements on page 592
•
Overview of an ATM Pseudowire With Cell Mode Base Configuration on page 592
•
Configuring an ATM Pseudowire on page 593
Requirements
The following is a list of the hardware and software requirements for this configuration.
•
One ACX Series router
•
Junos OS Release 12.2 or later
Overview of an ATM Pseudowire With Cell Mode Base Configuration
The configuration shown here is the base configuration of an ATM pseudowire with ATM
cell-relay encapsulation on an ACX Series router. This configuration is for one provider
edge router. To complete the configuration of an ATM pseudowire, you need to repeat
this configuration on an other provider edge router in the MPLS network.
Copyright © 2017, Juniper Networks, Inc.592
ACX Series Universal Access Router Configuration Guide
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