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Junos MPLS Fundamentals (JMF)


Course Content

This two-day course is designed to provide you with a solid foundation on Multiprotocol Label Switching (MPLS), including the configuration and operation of the two main label distribution protocols, RSVP and LDP. Special emphasis is given to the central topics of traffic engineering and MPLS traffic protection, including fast reroute, link/node protection and LDP Loop-Free Alternate. You will also be introduced to concepts such as MPLS forwarding and the structure of the MPLS header

You will gain experience in configuring and monitoring MPLS on Junos OS devices through a series of in-depth, hands-on labs.

Who should attend

This course benefits individuals responsible for configuring and monitoring devices running the Junos OS.



Course Objectives

  • Describe the history and rationale for MPLS, as well as its basic terminology
  • Explain the MPLS label operations (push, pop, swap) and the concept of label-switched path (LSP)
  • Describe the configuration and verification of MPLS forwarding
  • Describe the functionalities and operation of RSVP and LDP
  • Configure and verify RSVP-signaled and LDP-signaled LSPs
  • Select and configure the appropriate label distribution protocol for a given set of requirements
  • Describe the default Junos OS MPLS traffic engineering behavior
  • Explain the Interior Gateway Protocol (IGP) extensions used to build the Traffic Engineering Database (TED)
  • Describe the Constrained Shortest Path First (CSPF) algorithm, its uses, and its path selection process
  • Describe administrative groups and how they can be used to influence path selection
  • Describe the default traffic protection behavior of RSVP-signaled LSPs
  • Explain the use of primary and secondary LSPs
  • Describe the operation and configuration of fast reroute
  • Describe the operation and configuration of link and node protection
  • Describe the operation and configuration of LDP loop-free alternate
  • Describe the LSP optimization options
  • Explain LSP priority and preemption
  • Describe the behavior of fate sharing
  • Describe how SRLG changes the CSPF algorithm when computing the path of a secondary LSP
  • Explain how extended admin groups can be used to influence path selection
  • Explain the purpose of several miscellaneous MPLS features

Follow On Courses

Outline: Junos MPLS Fundamentals (JMF)

Chapter 1: Course Introduction

Chapter 2: MPLS Fundamentals

  • MPLS Foundation
  • Terminology
  • MPLS Configuration
  • MPLS Packet Forwarding
  • Lab: MPLS Fundamentals

Chapter 3: Label Distribution Protocols

  • Label Distribution Protocols
  • RSVP
  • LDP
  • Lab: Label Distribution Protocols

Chapter 4: Routing Table Integration

  • Mapping Next-Hops to LSPs
  • Route Resolution Example
  • Route Resolution Summary
  • IGP Passive Versus Next-Hop Self for BGP Destinations

Chapter 5: Constrained Shortest Path First

  • RSVP Behavior Without CSPF
  • CSPF Algorithm
  • CSPF Tie Breaking
  • Administrative Groups
  • Inter-area Traffic Engineered LSPs
  • Lab: CSPF

Chapter 6: Traffic Protection and LSP Optimization

  • Default Traffic Protection Behavior
  • Primary and Secondary LSPs
  • Fast Reroute
  • RSVP Link Protection
  • LDP LFA and Link Protection
  • LSP Optimization
  • Lab: Traffic Protection

Chapter 7: Fate Sharing

  • Junos OS Fate Sharing
  • SRLG
  • Extended Admin Groups
  • Lab: Fate Sharing

Chapter 8: Miscellaneous MPLS Features

  • Forwarding Adjacencies
  • Policy Control over LSP Selection
  • LSP Metrics
  • Automatic Bandwidth
  • Container LSPs
  • TTL Handling
  • Explicit Null Configuration
  • MPLS Pings
  • Lab: Miscellaneous MPLS Features
Online Training

Duration 2 days

Classroom Training

Duration 2 days

  • United States: US$ 1,595
  • Juniper Training Credits: 1595 JTC
Click on town name or "Online Training" to book Schedule
This is an Instructor-Led Classroom course
Instructor-led Online Training:   This is an Instructor-Led Online (ILO) course. These sessions are conducted via WebEx in a VoIP environment and require an Internet Connection and headset with microphone connected to your computer or laptop.
United States

Currently there are no training dates scheduled for this course.  You can schedule a private, onsite training session or request a public date by emailing info@fastlaneus.com.