Measure Latency & Prioritize Real-Time Traffic

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When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Q: Is financial aid available?

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

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4 modules

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

3 hours to complete

Flexible schedule

Learn at your own pace

4 modules

Gain insight into a topic and learn the fundamentals.

Intermediate level

Recommended experience

3 hours to complete

Flexible schedule

Learn at your own pace

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There are 4 modules in this course

Low-Latency Networking: Measure Latency & Prioritize Real-Time Traffic is an intermediate-to-advanced course for you if you are a network engineer or architect supporting real-time applications such as voice, video, and interactive services. Because latency and jitter often stem from design and congestion issues not just bandwidth this course focuses on how you measure, analyze, and control delay across modern networks.

You build a clear model of end-to-end latency, practice measuring delay with common network tools, and apply Quality of Service (QoS) techniques such as DSCP marking and priority queuing to protect real-time traffic. The course concludes with packet-level analysis so you can verify that QoS policies meet latency SLAs. Through videos, readings, hands-on labs, and Coach-guided reflection, you develop the ability to validate low-latency performance with data rather than assumptions.

In this module, you build a conceptual model of end-to-end latency by breaking it into propagation, processing, queueing, and serialization delays. You move beyond definitions to reason about where delay is introduced in real networks and why queueing dominates latency under load. By the end of the module, you can explain latency sources clearly and predict where optimization efforts matter most.

What's included

1 video3 readings1 assignment

In this module, you apply latency concepts using real tools. You use ping, traceroute, and packet captures to measure RTT and infer one-way delay. You learn how to interpret results, avoid common measurement pitfalls, and correlate ICMP results with packet-level timestamps.

What's included

1 video3 readings1 assignment

1 videoTotal 5 minutes

Screencast: Measuring Network Latency with Real Tools (Ping, Traceroute, and Packet Captures)5 minutes

3 readingsTotal 16 minutes

Screencast: Measuring Network Latency with Real Tools (Ping, Traceroute, and Packet Captures)4 minutes
Interpreting Ping, Traceroute, and RTT Correctly7 minutes
Walkthrough - Measure and Document Baseline Network Latency 5 minutes

1 assignmentTotal 15 minutes

Hands-On Learning: Measure and Document Baseline Network Latency15 minutes

In this module, you focus on configuring QoS to reduce latency and jitter for real-time traffic. You apply DSCP marking and strict-priority queuing, while evaluating tradeoffs such as starvation and misclassification risks.

What's included

1 video2 readings1 assignment

In this module, you analyze packet captures to verify that QoS policies are actually reducing per-hop queueing delay. You confirm SLA compliance (<5 ms queueing) using evidence rather than configuration assumptions.

What's included

2 videos2 readings2 assignments

2 videosTotal 7 minutes

Screencast: Verifying QoS Behavior in Packet Captures4 minutes
Congratulations and Next Steps in Low-Latency Networking3 minutes

2 readingsTotal 10 minutes

Using Packet Captures to Validate QoS SLAs5 minutes
Walkthrough - Analyze Captures to Confirm <5 ms Queueing 5 minutes

2 assignmentsTotal 35 minutes

Hands-On Learning: Analyze Captures to Confirm <5 ms Queueing15 minutes
Graded Assessment: Low-Latency Networking Performance Task20 minutes

Instructor

ansrsource instructors

237 Courses15,023 learners

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Frequently asked questions

To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

When you purchase a Certificate you get access to all course materials, including graded assignments. Upon completing the course, your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.