Junos MPLS Fundamentals (JMF)

Day 1

Module 1: Introduction

Module 2: MPLS—Introduction

• Describe the BGP remote next-hop mechanic, and hop-by-hop forwarding

• Explain the original historical motivations for MPLS

• List the alternative modern use cases for MPLS

Module 3: MPLS—The Mechanics

• Explain how labels are built, and how they flow between routers

• Describe the end-to-end data plane of a packet across a label-switched path

• Summarize the four primary protocols that can build label-switched paths

Module 4: MPLS—Static LSPs, and the Forwarding Plane

• Configure a service provider’s edge and core devices for MPLS

• Configure the headend router of an LSP, and explain the impact this has on the router's inet.3 table

• Configure transit routers, and verify their mpls.

Lab 1: Static LSPs, and the Forwarding Plane

Module 5: RSVP—Introduction

• Explain the purpose, features, and advantages of RSVP

• Configure a service provider network to be ready to host RSVP label-switched paths

Module 6: RSVP—Configuring A Basic LSP

• Configure and verify an RSVP label-switched path that follows the metrically best path

• Explain the purpose of MPLS self-ping

• Explain how an RSVP LSP is signaled and created

Module 7: RSVP—The Traffic Engineering Database

• Describe the purpose of the IS-IS/OSPF traffic engineering extensions

• Configure and verify an LSP that uses the traffic engineering database to calculate its path Juniper Business Use Only

• Explain the impact that loose and strict hops can have on an LSP

Lab 2: RSVP LSPs

Day 2

Module 8: RSVP—LSP Bandwidth Reservation

• Describe the use-cases for RSVP bandwidth reservations

• Configure LSP bandwidth reservations, and verify how these reservations are advertised

Module 9: RSVP—LSP Priorities

• Describe the problems that can be caused by RSVP LSP bandwidth reservations, and the solution offered by priority levels

• Describe the default RSVP LSP priority levels, how to configure alternative settings, and how to configure LSP soft-preemption to avoid downtime

Lab 3: RSVP—LSP Bandwidth and Priorities

Module 10: RSVP—Constrained Shortest Path First, and Admin Groups

• Describe the CSPF algorithm, along with its tie breakers

• Configure and verify admin groups on LSPs

Module 11: RSVP—LSP Failures, Errors, and Session Maintenance

• Describe the events that can tear down an LSP, and the RSVP messages that make it happen

• Describe how RSVP has changed over the years from a soft-state protocol to a reliable stateful protocol

Module 12: RSVP—Primary and Secondary Paths

• Explain the use-cases and configuration for primary and secondary paths

• Identify the benefits and trade-offs of standby secondary paths

• Show the advantage of pre-installing backup paths to the forwarding table

Lab 4: RSVP—Primary and Secondary Paths

Module 13: RSVP—Local Repair, Part 1—One-to-One Backup, or Fast-Reroute

• Demonstrate the downtime that can be caused by a link or node failure in an MPLS network, and how a local repair path can significantly reduce this downtime

• Explain the mechanics of the one-to-one backup method

• Explain the many different meanings of the term “fast reroute”

• Configure and verify the one-to-one backup method of local repair

Module 14: RSVP—Local Repair Part 2—Facility Backup, or Node-Link-Protection

• Describe how facility backup creates local repair paths for link protection and for node protection

• Configure and verify the facility backup method

• Describe the advantages and trade-offs of the facility backup and one-to-one backup methods

Lab 5: One-to-One Backup and Facility Backup

Day 3

Module 15: RSVP—LSP Optimization

• Describe the LSP optimization algorithm, and how to configure this feature

Module 16: RSVP—Make-Before-Break and Adaptive

• Describe the make-before-break mechanic, and list the features that use this mechanic by default

• Explain how shared explicit signaling can prevent double-counting of bandwidth, and configure this feature for all other LSPs

• Configure a policy to map specific traffic to a particular RSVP LSP

Module 17: LDP—The Label Distribution Protocol

• Describe the key features, advantages, and trade-offs of LDP

• Explain the particular methods by which LDP generates and advertises MPLS labels

Module 18: LDP—Configuration

• Configure a basic LDP deployment, and describe the protocol messages that this configuration generates

• Verify the interface messages, sessions, and labels that this configuration generates

Module 19: LDP—Enhancements and Best Practices

• Explain the LDP-IGP Synchronization feature that reduces dropped packets during topology changes

• Describe how the BGP next-hop resolution process can be altered in LDP

• Configure session protection to improve the integrity of LDP during network failure

Module 20: LDP—Egress, Import, and Export Policies

• Configure and verify LDP egress policies to advertise any FEC of your choosing

• Configure and verify LDP import and export policies to limit the distribution of FECs

Lab 6: Label Distribution Protocol Appendix A: Segment Routing

• Explain what a segment is, and describe how segment routing advertises MPLS labels within IS-IS or OSPF

• Configure segment routing to advertise Adjacency SIDs

• Configure segment routing for shortest-path routing, as a replacement to LDP Students should have intermediate-level networking knowledge and should be familiar with the Junos OS command-line interface (CLI).