Comprehensive Junos Class of Service (JCOS) Course: Boost Your Skills Today

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Junos Class of Service (JCOS) Course Overview

The Junos Class of Service (JCOS) is a certification that verifies the mastered knowledge of advanced Juniper Networks technology pertaining to quality of service for service provider networks. Service providers and network engineers use this certification to prove their expertise in segmenting and prioritising network traffic for improved network performance and service advancement. JCOS covers areas like configuring and monitoring quality of service elements, implementing classification and policing, scheduling, congestion management and avoidance, and more. Industries use JCOS to ensure network efficiency, improve bandwidth utilization, and maintain high-quality service delivery of their increasingly packet-heavy, latency-sensitive data traffic.


The 1-on-1 Advantage

Get 1-on-1 session with our expert trainers at a date & time of your convenience.

Flexible Dates

Start your session at a date of your choice-weekend & evening slots included, and reschedule if necessary.

4-Hour Sessions

Training never been so convenient- attend training sessions 4-hour long for easy learning.

Destination Training

Attend trainings at some of the most loved cities such as Dubai, London, Delhi(India), Goa, Singapore, New York and Sydney.

You will learn:

  • CoS History and Evolution
  • CoS and DiffServ
  • CoS Fields in Packet Headers
  • CoS Processing
  • Classification Overview
  • Forwarding Classes and Packet Loss Priority
  • Fixed Classification
  • Multifield Classification
  • Behavior Aggregate Classification
  • Lab 1: Configuring Packet Classification
  • Policing Overview
  • Single-Rate Two-Color Policer
  • Tricolor Marking Policers
  • Hierarchical Policers
  • Application—Directly on an Interface
  • Application—Within a Firewall Filter
  • Lab 2: Configuring Policers
  • Scheduling Overview
  • Transmission Rate
  • Queue Priority
  • Delay Buffers
  • Drop Profiles and Drop Profile Maps
  • Scheduling Configuration
  • Lab 3: Configuring Schedulers
  • Hierarchical Scheduling Overview
  • Scheduler Modes
  • Hierarchical Scheduling Levels
  • Throughput Example
  • Remaining Traffic
  • Queue Properties in a Hierarchical Scheduling Context
  • Putting It All Together
  • Lab 4: Configuring Hierarchical Schedulers
  • Packet Header Rewrite Overview
  • Rewrite Rules and Tables
  • Rewrite Combinations
  • Lab 5: Configuring Rewrite Rules
  • CBF Overview
  • CBF Configuration
  • Lab 6: Configuring CBF
  • VoIP Case Study Overview
  • VoIP Case Study: Ingress Node
  • VoIP Case Study: Transit and Egress Nodes
  • Lab 7: Case Study
Live Online Training (Duration : 16 Hours)
We Offer :
  • 1-on-1 Public - Select your own start date. Other students can be merged.
  • 1-on-1 Private - Select your own start date. You will be the only student in the class.

1300 + If you accept merging of other students. Per Participant & excluding VAT/GST
4 Hours
8 Hours
Week Days

Start Time : At any time

12 AM
12 PM

1-On-1 Training is Guaranteed to Run (GTR)
Group Training
1000 Per Participant & excluding VAT/GST
02 - 03 Oct
09:00 AM - 05:00 PM CST
(8 Hours/Day)
06 - 07 Nov
09:00 AM - 05:00 PM CST
(8 Hours/Day)
Course Prerequisites
- Basic understanding of networking and Junos OS operations
- Familiarity with Juniper Networks technology
- Previous experience in implementing and managing Juniper Networks devices
- Completion of Introduction to the Junos Operating System (IJOS) and Junos Intermediate Routing (JIR) courses
- Basic knowledge of IP routing and switching technologies.

Junos Class of Service (JCOS) Certification Training Overview

Junos Class of Service (JCOS) certification training provides in-depth knowledge about Juniper Networks class of service technologies. The course focuses on areas such as configuring and managing classification, policing and scheduling, shaping, and rewrite rules on Junos devices. The training also covers topics like traffic engineering, queue scheduling, and various CoS designs. It essentially equips network professionals to configure and implement Junos OS CoS features for ensuring quality of service in the network traffic.

Why Should You Learn Junos Class of Service (JCOS)?

Learning Junos Class of Service (JCOS) course in stats equips individuals with key skills like understanding and configuring Junos OS CoS features, managing traffic flow, shaping and scheduling traffic. These skills can help in network capacity planning, enhance network performance and contribute to overall IT efficiency.

Target Audience for Junos Class of Service (JCOS) Certification Training

- Network engineers and IT professionals interested in learning about Junos OS
- Individuals seeking to enhance their skills in managing and configuring Junos devices
- Professionals preparing for Juniper Networks certification exams
- Network administrators aiming to optimize network performance
- Juniper partners and employees wanting to deepen their understanding of Class of Service.

Why Choose Koenig for Junos Class of Service (JCOS) Certification Training?

- Certified instructors offer personalized attention and expertise to each learner
- Diverse course content contributes to your career advancement
- Customized training programs tailored to individual learning needs
- The unique concept of destination training that combines learning with travel
- Affordable pricing for comprehensive coverage of the subject
- Recognized as a top training institute worldwide
- Flexibility of dates catering to learners' convenience
- Instructor-led online training promotes interactive learning
- Wide range of technology and business courses offered
- Accredited training ensuring the quality and authenticity of teaching.

Junos Class of Service (JCOS) Skills Measured

After completing the Junos Class of Service (JCOS) certification training, an individual will acquire skills in configuring and monitoring the Junos OS Class-of-Service (CoS) features. They gain expertise in handling quality of service (QoS) features like policing, scheduling, rewriting, etc., to control bandwidth and priority. They'll also learn about deploying CoS in MPLS VPN environment, hierarchical scheduling, and how to handle congestion among different classes of service. Essentially, it equips them for advanced network traffic management and optimum utilization of network resources.

Top Companies Hiring Junos Class of Service (JCOS) Certified Professionals

Top companies such as Juniper Networks, IBM, AT&T, Verizon, Fujitsu, Nokia Networks, and Ericsson hire Junos Class of Service (JCOS) certified professionals. These corporations require experts who can configure and monitor Class of Service (CoS) features on Junos OS for specialised functions in network and system architecture.

Learning Objectives - What you will Learn in this Junos Class of Service (JCOS) Course?

The learning objectives of the Junos Class of Service (JCOS) course are: to enhance participants’ knowledge about Junos CoS features and its applications in Junos devices. The course aims to provide comprehensive understanding of CoS mechanisms, configuration, implementation, and operation along with policing and scheduling for CoS. Learners should grasp how to configure and monitor Class-of-Service (CoS) features on Junos devices, maintain and troubleshoot Junos CoS configurations, and understand the operation of specific CoS features in different network architectures. The objective is to ensure the learner can proficiently manage traffic flow on Junos networks.


Yes you can.
Yes, we do. For details go to flexi
You can pay through debit/credit card or bank wire transfer.
Yes you can request your customer experience manager for the same.
1-on-1 Public - Select your start date. Other students can be merged.
1-on-1 Private - Select your start date. You will be the only student in the class.
Yes, course requiring practical include hands-on labs.
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Yes, we also offer weekend classes.
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It is recommended but not mandatory. Being acquainted with the basic course material will enable you and the trainer to move at a desired pace during classes.You can access courseware for most vendors.
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Buy-Now. Pay-Later option is available using credit card in USA and India only.
You will receive the letter of course attendance post training completion via learning enhancement tool after registration.
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The Fee includes:
  • Remote Labs
Schedule for Group Training is decided by Koenig. Schedule for 1-on-1 is decided by you.
In 1 on 1 Public you can select your own schedule, other students can be merged. Choose 1-on-1 if published schedule doesn't meet your requirement. If you want a private session, opt for 1-on-1 Private.

Prices & Payments

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Travel and Visa

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