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Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

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Related<br />

Documentation<br />

•<br />

<strong>Ethernet</strong> Automatic Protection Switching Overview on page 429<br />

• Example: Configuring Protection Switching Between Psuedowires on page 433<br />

Example: Configuring Protection Switching Between Psuedowires<br />

Requirements<br />

Overview and Topology<br />

<strong>Configuration</strong><br />

Step-by-Step<br />

Procedure<br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.<br />

• Requirements on page 433<br />

• Overview and Topology on page 433<br />

• <strong>Configuration</strong> on page 433<br />

This example uses the following hardware and software components:<br />

• Junos <strong>OS</strong> Release 11.2 or later<br />

• 2 MX Series PE routers<br />

The physical topology of the protection switching between psuedowires example is<br />

shown in Figure 32 on page 433.<br />

Figure 32: Topology of a Network Using VPWS Psuedowires<br />

Working LSP<br />

Protection LSP<br />

MPLS Core<br />

Attachment<br />

Attachment<br />

CE1<br />

circuit<br />

PE1 PE2<br />

circuit<br />

CE2<br />

Customer site A Customer site B<br />

G.8031<br />

The following definitions describe the meaning of the device abbreviations used in Figure<br />

32 on page 433.<br />

• Customer edge (CE) device—A device at the customer site that provides access to the<br />

service provider’s VPN over a data link to one or more provider edge (PE) routers.<br />

• Provider edge (PE) device—A device, or set of devices, at the edge of the provider<br />

network that presents the provider's view of the customer site.<br />

To configure protection switching between psuedowires, perform these tasks:<br />

1.<br />

Configure automatic protection switching.<br />

Chapter 31: Configuring <strong>Ethernet</strong> Automatic Protection Switching<br />

g017516<br />

433

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