When you first install Junos OS on your device, MPLS is disabled by default. You must explicitly configure your device to allow MPLS traffic to pass through. JUNOS™. Internet Software Configuration Guide MPLS Applications. Release Juniper Networks, Inc. North Mathilda Avenue Sunnyvale, CA Junos OS MPLS Applications Configuration Guide – Juniper Networks (Junos OS) MPLS Network Operations Guide – Juniper Networks.

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CopyrightEpilogue Technology Corporation.

This program and its documentation were developed at private expense, and no part of them is in the public domain. This product includes memory allocation software developed by Mark Moraes, copyright,University of Toronto.

All of the documentation and software included in the 4. Copyright,,The Regents of the University of California. GateD software copyrightThe Regents of the University. Gate Daemon was originated and developed through release 3.

Development of Gated has been supported in part by the National Science Foundation. Portions of the GateD software copyrightD. This product includes software developed by Maker Communications, Inc. Juniper Networks is a registered trademark of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks may be the property of their respective owners.

MPLS Configuration Overview

All specifications are subject to change without notice. Pam Muraca, Cris Morris Covers and template design: The information in this document is current as of the date listed in the revision history above.

The information in this document has been carefully verified and is believed to be accurate.

Juniper Networks assumes no responsibilities for any inaccuracies that may appear in this document. In no event will Applkcations Networks be liable for direct, indirect, special, exemplary, incidental or consequential damages resulting from any defect or omission in this document, even if advised of the possibility of such damages. Juniper Networks reserves the right to change, modify, transfer or otherwise revise this publication without notice.

Cofiguration using this software, you indicate that you understand and agree to be bound by those terms and conditions.

Generally speaking, the software license restricts the manner in which you are permitted to use the software and may contain prohibitions against certain uses. The software license may state conditions under which the license is automatically terminated. You should consult the license for further details. For complete product documentation, please see the Juniper Networks Web site at ii. Create a Named Path Configure the Ingress Router Configure an Intermediate Router Configure an Egress Router MPLS Applications encapsulation-type encapsulation-type ccc encapsulation-type layer 2 vpn instance-type interface route-distinguisher site traceoptions vrf-export vrf-import Appendix A Glossary Index Comprehensive Index Index Comprehensive Index of Statements and Commands.

Detours Merging into Other Detours Layer 2 Switching Cross-Connect Figure Route Distinguishers Figure VRF Tables Figure Label Stack Figure Label Pushing and Popping Figure Objectives on page xix!

Audience on page xx! Document Organization on page xx! Related Documentation on page xxii! Manual Part Organization on page xxiii! Using the Indexes on page xxiv! Documentation Conventions on page xxiv!


Documentation Feedback on page xxvi! To obtain additional information about the JUNOS software either corrections to information in this manual or information that might have been omitted from this manual refer to the software release notes.

To obtain the most current version of this manual and the most current version of the software release notes, refer to the product documentation page on the Coonfiguration Networks Web site, which is located at To order printed copies of this manual or to order a documentation CD-ROM, which contains this manual, please contact your sales representative. Guidf This Manual xix. It assumes that you have a broad understanding of networks in general, the Internet in particular, networking principles, and network configuration.

This manual assumes that you are familiar with one or more of the following Internet routing protocols: This manual is divided into several parts.

Each part describes a major functional area guise the JUNOS software, and the individual chapters within a part describe the software components of that functional mlls. This manual contains the following parts and chapters:! Part 1, Overview, provides an overview of Traffic Engineering concepts and configuration statements.! Chapter 1, Traffic Engineering Overview, provides a functional description of the four major components of traffic engineering, as well as the various methods of calculating and configuring label-switched paths LSPs.!

Chapter 2, Complete MPLS Applications Applivations Mode Statements, provides a comprehensive list of all the configuration statements available and displays their hierarchy.! Chapter 3, MPLS Overview, mols a short overview of Multiprotocol Label Switching MPLSwhich provides a mechanism for engineering network traffic patterns that is independent of the shortest path determined by a routing protocol.!

About This Manual xxi. This manual also contains a glossary, a complete index, and an index of statements and commands. This manual also describes how to configure system management functions and how to configure the chassis, including user accounts, passwords, and redundancy.!

Interfaces, Class of Service, and Firewalls Provides an overview of the interface, class-of-service, and firewall functions of the JUNOS Internet software and describes how to configure the interfaces on the router.!

Multicast Provides an overview of multicast concepts and describes how to configure multicast routing protocols.! Network Management Provides an overview of network management concepts and describes how to configure various network management features, such as SNMP, accounting options, configuratiion cflowd.!

Routing and Routing Protocols Provides an overview of routing concepts and describes how to configure routing, routing policy, and unicast routing protocols.! Overview Provides background information about and discusses concepts related to the software component described in that part of the book.! Configuration statements Lists all the configuration statements available to configure the software component.

These chapters provide an overview of the configuration statement hierarchy for each software component.! Configuration guidelines Describes how jhnos configure all features of the software component.

The first section of the configuration guidelines describes the minimum configuration for that component, listing the configuration statements you must include hunos enable the software component on the router with only the bare minimum functionality.

Useful References

The remaining sections in the configuration guidelines are generally arranged so that the most confituration features are near the beginning.! Statement summary A reference that lists all configuration statements alphabetically and explains each statement and all its options. The explanation of each configuration statement consists of the following parts:!


Confifuration Describes the full syntax of the configuration statement. For an explanation of how to read the syntax statements, see Documentation Conventions on page xxiv.! Hierarchy level Tells where in the configuration statement hierarchy you include the statement.! Description Describes the function of the configuration statement.! Options Describes the configuration statement s options if there are any. For options with numeric values, the allowed range and default value, if any, are listed.

For multiple options, if one option is the default, that fact is stated. If a configuration statement is at the top of a hierarchy of options that are other configuration statements, these options are generally explained separately in the statement summary section.! Usage guidelines Points to the section or sections in the configuration guidelines section cnofiguration describe how to use the configuration statement.!

Required privilege level Indicates the permissions that the user must have to view or juos the statement in the router configuration. Installation and System Management.!

See also Indicates other configuration statements that might provide related or similar functionality. About This Manual xxiii. In the index, bold page guidf point to pages in the statement summary sections of configuration chapters.

MPLS Configuration Guide – Juniper Networks

The index entry for each configuration statement always contains at least two entries. The first, with a bold page number on the same line as the statement name, references the statement summary section. The second entry, usage guidelines, references the section in the configuration guidelines section that describes how to use the statement.

In general text, this manual uses the following conventions:! Statements, commands, filenames, directory names, IP addresses, and configuration hierarchy levels are shown in a sans serif font. In the following example, stub is a statement name and [edit protocols ospf area area-id] is a configuration hierarchy level: To configure a stub area, include the stub statement at the [edit protocols ospf area area-id] hierarchy level.!

In examples, text that you type literally is shown in a bold font. In the following example, you type the word show: Examples of command output are generally shown in a fixed-width font to preserve the column alignment.

Statement or command names that you type literally are shown in a nonitalicized font. In the following example, the statement name is area: You configure all these routers by including the following area statement at the [edit protocols ospf] hierarchy level:! Options, which are variable terms for which you substitute appropriate values, are shown in italics.

In the following example, area-id is an option.