Junos MPLS Fundamentals (TR-JMF)

This two-day course is designed to provide students with a solid foundation on Multiprotocol Label Switching (MPLS). After introducing concepts such as MPLS forwarding and the structure of the MPLS header, the course will delve into 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. The concepts are put into practice with a series of in-depth hands-on labs, which will allow participants to gain experience in configuring and monitoring MPLS on Junos OS devices. These hands-on labs utilize Juniper Networks vMX Series devices using the Junos OS Release 16.1R3.10, but are also applicable to other MX Series devices.

Course Synopsis
Target Audience


After successfully completing this course, you should be able to:

  • Describe the history & rationale for MPLS & basic terminology.
  • Explain the MPLS label operations (push, pop, swap) and the concept of label-switched path (LSP).
  • Describe the configuration & 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 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 RSVPsignaled LSPs.
  • Explain the use of primary and secondary LSPs.
  • Describe the operation and configuration of: fast reroute, link and node protection, 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

Course Synopsis

  • Introduction to Junos MPLS Fundamentals
  • MPLS Foundation, Terminology, Configuration, Packet Forwarding
  • Label Distribution Protocols: Protocols, RSVP, LDP
  • Routing Table Integration: Mapping Next-Hops to LSPs, Route Resolution Example, Route Resolution Summary, IGP Passive Versus Next-Hop Self for BGP Destinations
  • Constrained Shortest Path First: RSVP Behavior Without CSPF, CSPF Algorithm, CSPF Tie Breaking, Administrative Groups, Inter-area Traffic Engineered LSPs
  • Fate Sharing: Junos OS Fate Sharing, SRLG, Extended Admin Groups
  • MPLS Features: Forwarding Adjacencies, Policy Control over LSP Selection, LSP Metrics, Automatic Bandwidth, Container LSPs, TTL Handling, Explicit Null Configuration, MPLS Pings

Target Audience

Students should have intermediate-level networking knowledge and should be familiar with the Junos OS command-line interface (CLI). Students should also attend the Introduction to the Junos Operating System (IJOS), Junos Routing Essentials (JRE), and Junos Intermediate Routing (JIR) courses prior to attending this class.

Hands-On Labs

There are no labs associated with this course.


Certification: Junos MPLS Fundamentals


Description Item Code Price
Junos MPLS Fundamentals (TR-JMF) TR-JMF $1,595.00
Exam: Junos MPLS Fundamentals (TE-JMF) TE-JMF Included
Certificate: TFS Certification from The Fiber School – Students who successfully complete the Junos MPLS Fundamentals course TC-JMF $150

Schedule & Registration

This course is available as open-enrollment Classroom event, instructor-led Live Virtual Class, REAL-ILT™ or as part of a custom Onsite Training for up to 16 students.

Call 877-529-9114 for Scheduling

Planning & Reservations

Contact the Training and Development Coordinator for The Fiber School at Training@fiberoptic.com or call 877.529.9114.

Student Registration Use the Registration Form above or download the editable PDF and email to training@fiberoptic.com.

>> Registration Form PDF:  https://thefiberschool.com/wp-content/uploads/registration-form.pdf

Cancellation Policy: FiberOptic.com may cancel a course that lacks sufficient enrollment a week before it is scheduled to begin. When a course is canceled, we make every effort to notify all registered students promptly. A full refund is processed unless the student elects to transfer to another course or time. You can help avoid cancellation by registering early.

Student Cancellation: No refunds are permitted for student cancellation. Substitutions are permitted.

On-Site Training

With just 5 or more students The Fiber School can send the classroom to you! We offer custom, on-site training for any of our courses. Just give us a call at 877.529.9114 or email us at Training@fiberoptic.com and let us schedule an on-site course that perfectly suits your needs.