DiffServ-Aware Traffic Engineering Workshop (DSTE)

DiffServ-Aware Traffic Engineering Workshop (DSTE) 

This one-day course covers the basics of the traffic engineering database as it relates to DiffServ-Aware TE. The DiffServ-Aware TE course covers the purpose and use of DiffServ-Aware TE, how to set up and configure DiffServ-Aware TE LSPs, and how to troubleshoot issues with DiffServ-Aware TE LSPs.

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Course Level

DiffServ-Aware TE Workshop (DSTE) is an intermediate-level course.

Intended Audience

This course benefits individuals responsible for configuring and troubleshooting issues with DiffServ-Aware TE LSPs:


  • Intermediate-level networking knowledge.
  • Understanding of the Open Systems Interconnection (OSI) model and the TCP/IP protocol suite.
  • Objectives

    • Describe the path selection process of RSVP LSPs signaled without the use of Constrained Shortest Path First (CSPF).
    • Describe the IGP extensions needed to build and maintain the Traffic Engineering Database (TED).
    • Explain how the CSPF algorithm selects the best path based on provided constraints.
    • Explain how administrative groups can be used to influence path selection.
    • Explain the behavior of inter-area traffic engineered LSPs.
    • Describe the purpose, features, and operations of DiffServ-Aware TE.
    • Explain the differences between DiffServ-Aware TE LSPs and standard LSPs.
    • Explain the purpose of class types and TE classes.
    • Describe the MAM and Russian doll bandwidth constraint models.
    • Explain the purpose of multiclass DiffServ-Aware TE LSPs.
    • Explain DiffServ-Aware TE LSP oversubscription.
    • Describe how to configure DiffServ-Aware TE LSPs.
    • Explain how to forward traffic into DiffServ-Aware TE LSPs.
    • Explain how to provide traffic protection for DiffServ-Aware TE LSPs.
    • Describe how to configure automatic bandwidth adjustments for DiffServ-Aware TE LSPs.
    • Explain how to verify and monitor DiffServ-Aware TE LSPs.
    • Describe DiffServ-Aware LSP troubleshooting.
    • Explain how to troubleshoot CSFP issues.
    • Explain how to troubleshoot DiffServ-Aware TE issues.
    • Explain how to troubleshoot CoS for existing DiffServ-Aware LSPs.


    Day 1


    Chapter 2: Basic Operations of MPLS Traffic Engineering

    • RSVP Behavior Without CSPF
    • CSPF Algorithm
    • CSPF Tie Breaking
    • Administrative Groups
    • Inter-Area Traffic Engineered LSPs
    • Path Computation Element Protocol
    • Corouted Bidirectional LSPs
    • Proactive Loss and Delay Measurements Over Associated Bidirectional LSPs
    • LAB 1: MPLS Traffic Engineering

    Chapter 3: DiffServ-Aware TE Theory

    • DiffServ-Aware TE Overview
    • Class Types and TE Classes
    • Bandwidth Constraints
    • P2MP LSPs and DiffServ-Aware TE
    • Traffic Protection and DiffServ-Aware TE

    Chapter 4: DiffServ-Aware TE Implementation

    • Configuring DiffServ-Aware TE
    • Verifying and Monitoring DiffServ-Aware TE LSPs
    • Multiclass DiffServ-Aware TE LSPs
    • DiffServ-Aware TE Case Study
    • LAB 2: Implementing DiffServ-Aware TE LSPs

    Chapter 5: Troubleshooting DiffServ-Aware LSPs

    • DiffServ-Aware LSP Troubleshooting Overview
    • Troubleshooting CSPF-based LSPs
    • Troubleshooting DiffServ-Aware LSP Setup
    • Troubleshooting CoS for Existing DiffServ-Aware LSPs
    • LAB 3: Troubleshooting DiffServ-Aware LSPs

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