Course Information
Registration period
Year-round Recruitment
Course Level
Study Mode
Duration
20 Hour(s) 14 Minute(s)
Language
English
Taught by
Arash Deljoo
Rating
Course Overview
Complete Guide to Classification, Marking, Queuing, Policing, Shaping, and Congestion Control
Quality of Service (QoS) is one of the most critical skills for any network engineer working with modern enterprise networks. As data, voice, video, and real-time applications continue to grow, organizations require engineers who can ensure performance, prioritize traffic, control congestion, and deliver a seamless user experience. This course provides a complete, practical, and industry-standard understanding of QoS from the ground up.
Whether you are preparing for Cisco CCNP ENCOR, CCIE Enterprise, or aiming to advance your career as a Network Engineer, this course gives you the deep knowledge and hands-on skills needed to succeed. You will learn QoS models, classification, marking, queuing algorithms, policing, shaping, congestion avoidance, header compression, and LFI—all aligned with real-world enterprise use cases.
Throughout the course, you will configure QoS features using Cisco IOS and modular QoS CLI (MQC), analyze traffic behaviors, and understand how QoS impacts end-to-end performance. With detailed explanations of LLQ, CBWFQ, WFQ, RED/WRED, ECN, policing, shaping, and token bucket mechanisms, you will gain the expertise required in professional networking roles.
By the end of this course, you will be able to design, implement, and troubleshoot QoS solutions used in enterprise, service provider, voice, and collaboration networks. These are high-value skills sought after by employers and essential for passing Cisco professional exams.
If you are looking to upgrade your skills, boost your job opportunities, or succeed in Cisco certifications, this comprehensive QoS course is the perfect path forward.
Course Content
- 8 section(s)
- 52 lecture(s)
- Section 1 QoS Foundations
- Section 2 QoS Models , Classification & Marking
- Section 3 Modular QoS CLI (MQC)
- Section 4 QoS Queuing Concepts & Algorithms
- Section 5 QoS Traffic Policing & Shaping
- Section 6 QoS Congestion Avoidance
- Section 7 QoS Traffic Compression
- Section 8 QoS Link Fragmentation & Interleaving
What You’ll Learn
- Understand the core QoS concepts, including bandwidth, delay, jitter, and packet loss, and why QoS is essential for data, voice, and video traffic.
- Classify and mark traffic across Layers 2–7, including DSCP, IP Precedence, CoS, MPLS EXP, Wi-Fi TID, IPv6 Traffic Class, and NBAR-based identification.
- Use Modular QoS CLI (MQC) to create class maps, policy maps, and service policies for implementing QoS in Cisco networks.
- Analyze multiple queuing algorithms, including FIFO, PQ, CQ, RR, WRR, MDRR, WFQ, CBWFQ, and LLQ, and understand how each affects traffic handling.
- Configure and verify queuing mechanisms, including WFQ, CBWFQ, and LLQ, for prioritizing real-time and mission-critical traffic.
- Implement traffic policing and shaping, including token bucket models, dual-rate policing, and class-based shaping with practical examples.
- Apply congestion avoidance techniques, including RED, WRED, ECN, and understanding TCP congestion behavior.
- Configure traffic compression, including TCP, RTP, and class-based header compression for bandwidth optimization.
- Deploy Link Fragmentation and Interleaving (LFI) and understand its role with queues and Multilink PPP to reduce delay on slow links.
- Design end-to-end QoS strategies that integrate classification, marking, queuing, policing, shaping, congestion avoidance, and compression.
- Troubleshoot QoS behaviors using Cisco IOS verification tools, show commands, and best practices.
Skills covered in this course
Reviews
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BBoris Rabchonak
Very good explanation with good examples. I love this mentor and his courses and I recomend it very much. Still waiting for more courses about more topics in networks for you to learn more and succeed in my career !
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OOmar Orlando Moreno Moreno
Excellent course, very comprehensive theory, and you can do the labs.
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MMariya Ushshaque
The course content is quite interesting and easy to understand
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KKarthick K
I've learned lot and understanding well. This course is very helpful to learn about QOS.
