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Junos Class of Service (JCOS)

Training for your Group

  • Private class for your team
  • Online or on-location
  • Fully customizable course material
  • Onsite testing available

Training for Individuals

$1900

  • Live, Instructor-led training
  • Expert instructors
  • Hands-on instruction

Course Overview

This two-day course provides students with advanced class-of-service (CoS) knowledge and configuration examples. The course begins with an overview of CoS before going into classification, policing, scheduling, and rewriting. The course then covers class-based forwarding and finishes with case studies that reenforce topics.

Through demonstrations and hands-on labs, students will gain experience in configuring and monitoring the JUNOS Software and monitoring basic device operations.

Course Length: 2 days

Prerequisites: Students should have Intermediate-level networking knowledge and an understanding of the OSI model and the TCP/IP protocol suite. Students should also have fmailiarity with the Protocol Independent Multicast-Sparse Mode (PIM-SM) protocol.

Students should alread have attended Introuction to Junos Operating Systems (IJOS), Junos Routing Essentials (JRE), and the Junos Intermediate Routing (JIR) courses or have equivalent knowledge provided in these titles.

Audience: This course benefits individuals responsible for implementing, monitoring, and troubleshooting Layer 3 components of a service provider’s network.

What You're Going To Learn

  • Understand the history and evolution of CoS.
  • Identify the CoS fields in various packet headers.
  • List the CoS processing stages on devices running the Junos OS.
  • Identify the default CoS settings on devices running the Junos OS.
  • Configure and verify behavior aggregate (BA) and multifield (MF) classification.
  • Configure and verify two-color and tricolor marking policers.
  • Configure and verify schedulers and their components.
  • Configure and verify the multiple levels of hierarchical schedulers.
  • Configure and verify packet header rewriting.
  • Configure and verify class-based forwarding.
  • Create a CoS configuration based on a set of design requirements.

Register for an Upcoming Date

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Course Outline

Day 1

Chapter 1: Course Introduction

Chapter 2: CoS Overview

  • CoS History and Evolution
  • CoS and DiffServe
  • CoS Fields in Packet Headers
  • CoS Processing

Chapter 3: Packet Classification

  • Classification Overview
  • Forwarding Classes and Packet Loss Priority
  • Fixed Classification
  • Multifield Classification
  • Behavior Aggregate Classification

Chapter 4: Policing

  • Policing Overview
  • Single-Rate Two-Color Policer
  • Tricolor Marking Policers
  • Application—Directly on an Interface
  • Application—Within a Firewall Filter

Chapter 5: Scheduling

  • Scheduling Overview
  • Transmission Rate
  • Queue Priority
  • Delay Buffers
  • Drop Profiles and Drop Profile Maps
  • Scheduling Configuration

What to Expect at LeapFox

Knowledgeable Instructors

Our instructors are certified professionals. They are trained on the latest features and how to get the most out of software programs.

Hands-on Labs

No boring lectures! Our courses are designed to give students lots of time to practice what they are learning with hands-on exercises and projects.

Bounce Back Pass

Retake any public course as many times as you like for up to one year for classroom live classes and six months for remote live courses.

Certificate of Completion

Receive a certificate of completion at the end of every course.

Up-to-date Curriculum

Each course comes with a helpful and up-to-date ebook which will contain instruction and practice exercises.

Time Saving Tips N Tricks

In each course, your instructor will show you tips and tricks that will save you time and make you more efficient.

Friendly and Helpful Staff

Our staff is dedicated to your success. Each team member is trained to provide the absolute best customer service possible.

Satisfaction Guarantee

If you aren't 100% satisfied with your experience at LeapFox, simply let us know, and we will make it right.

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