quality of service
Internet Tips and Tricks

What is Quality of Service? A Comprehensive Guide to Understanding QoS

Have you ever noticed that sometimes your internet slows down or gets glitchy? Well, that’s where Quality of Service (QoS) comes in! QoS is something that your internet service provider (ISP) uses to make sure you’re getting the best possible internet experience. 

But it’s not just something that ISP companies use. Even you can use QoS to ensure that your home network is in top shape. So, whether you’re trying to stream your favorite show or browse the web, QoS can ensure you’re enjoying the smoothest, fastest internet. 

Read all there is to know about QoS  below – what it is, how it works, who can benefit from it and how to set it up. Happy reading! 

What is Quality of Service (QoS)?

Quality of Service (QoS) prioritizes certain types of network traffic over others based on their level of importance or sensitivity to delay, loss, or other network conditions.  

For example, let’s say you’re playing online games, and someone else in your house is trying to stream Netflix simultaneously. Streaming Netflix requires a lot of bandwidth, which can slow down your gaming experience and cause lag or other issues. 

With QoS, you can choose to prioritize your gaming traffic over Netflix traffic so that your games get the necessary bandwidth to function properly. This means that if there’s not enough bandwidth to run both devices at full speed, the Netflix stream suffers from buffering or reduced quality, but your gaming experience won’t be affected. 

quality of service

What are the Benefits of QoS & Do You Need It?

Quality of Service (QoS) can benefit anyone who uses the internet, but it’s especially handy for people who need to ensure that certain types of traffic are prioritized over others.  

For example, if you work from home and rely on video conferencing or other work-related activities, QoS can help ensure your internet connection is stable and reliable, even if other people in your household stream video or play online games. 

Likewise, if you’re a gamer or a heavy streamer, QoS can help ensure your online experience is  streamlined and lag-free  even during high network usage times. And suppose you’re a parent or caregiver. In that case, QoS can be useful for setting up parental controls and ensuring your kids’ internet usage doesn’t interfere with your own.   

Finally, small businesses can also benefit from QoS, as they often have limited bandwidth or more modest network resources than larger organizations. This useful network feature can help improve productivity, reduce downtime, and enhance the overall user experience. 

Here’s how QoS can help you: 

Get Consistent & Reliable Internet

QoS techniques ensure that critical network traffic is delivered without delay, allowing you to get consistent and reliable internet services.  

With high QoS, you won’t experience buffering while streaming videos or voice calls dropping during a conversation. 

Enjoy Faster Download & Upload Speeds

With QoS, ISPs can prioritize your network traffic, which means you will receive faster download and upload speeds for critical traffic like video streaming, voice, and video calls. This translates to better streaming quality, faster downloads, and faster uploads of files, images, and videos. 

Improve Your Online Gaming Experience

Gamers need the best internet for gaming to enjoy their favorite pastime. Their dream internet connection comes with low latency and high bandwidth.  

With QoS, gamers can prioritize gaming traffic while will provide a more responsive online gaming experience. This is especially important for competitive gamers who need the highest possible performance to remain competitive. 

Enjoy High-Quality Video Conferencing & Online Meetings

For work-from-home professionals, reliable and high-quality network connectivity has become essential. You can prioritize video conferencing and Zoom meetings. That way, you can avoid drops in connection during important calls and meetings. You’ll no longer experience lagging or buffering. Instead, you’ll always reflect your most professional self. 

Save Money on the Internet

In some cases, using Quality of Service (QoS) to prioritize traffic on your home network can help you save money on your internet service because it can help you avoid the need to upgrade to a higher-speed internet plan. 

quality of service

How Does Quality of Service (QoS) Work: 6 Mechanisms

Now that you understand quality of service and its benefits, let’s dive deeper into how it works. Quality of Service (QoS) relies on various mechanisms to manage network traffic. Below, we explain some of the most common ones using traffic as the metaphor for data. 

Traffic Shaping

Traffic shaping is a technique that controls data flow on a network. Think of it like traffic on a busy street. To prevent congestion and ensure a smooth traffic flow, you can install traffic lights to regulate the speed and direction of vehicles.  

In the same way, traffic shaping is used to regulate the flow of data on the internet. This helps prevent congestion and ensure that important data, like email or video calls, gets through quickly. 


Network devices, such as routers or switches, often use queues to temporarily store data packets before forwarding them to their destination. By prioritizing certain types of data in the queue, the most important traffic is processed first. 

In this sense, queuing is like a line of cars waiting to get through a toll booth. To prevent chaos and ensure an optimal traffic flow, the cars are organized into a single file line. And just like letting emergency vehicles skip to the front of the line if necessary, some types of online traffic are prioritized over others. 


Scheduling involves allocating bandwidth or CPU time to specific types of traffic on a predetermined basis. For example, you or the ISP can allocate a certain amount of bandwidth to video traffic during peak usage hours to ensure that video streams don’t experience interruptions or delays. 

Admission control

As the name suggests, admission control limits the number of users or devices allowed to access a network to prevent overloading or congestion. That way, each user receives a consistent level of service.  

Congestion Avoidance

Congestion avoidance mechanisms like Random Early Detection (RED) keep an eye on your network traffic and adjust how data is transmitted so that everything flows easily.  

RED does this by detecting when there’s a lot of traffic on the network and slowing down the transmission of data to prevent congestion from occurring in the first place. It’s like preventing bottlenecks on the road! 

Packet Prioritization

Packet prioritization helps ensure that certain network traffic is given priority over less important traffic. This can help prevent delays or disruptions in critical network applications, even when the network is experiencing congestion or packet loss. 

For example, let’s say you’re on a video call with someone, and your network is experiencing congestion. Packet prioritization helps ensure that video traffic gets higher priority than other types of traffic. This would help ensure that your video call remains clear and uninterrupted, even if there is some packet loss on the network. 

How to Set Up QoS?

Setting up QoS for your home network can initially seem daunting, but it’s more straightforward than it might seem.   

Here are some basic steps you can follow to set up QoS through the router: 

  1. Check your router: Make sure your router supports QoS. Most modern routers do, but if you need more clarification, check the manufacturer’s website or manual. 
  2. Access your router’s settings: Open a web browser and enter your router’s IP address in the address bar. You can find the IP address in your router’s manual or through a quick internet search. 
  3. Find the QoS settings: Once logged in to your router’s settings, look for the Quality of Service (QoS) section. This might be under a “Traffic Management” or “Advanced” tab. 
  4. Set up QoS: Depending on your router, the specific steps to set up QoS vary. However, you’ll generally want to enable QoS and set up rules to prioritize certain types of traffic (e.g., video streaming, online gaming, work-related apps) over others. 
  5. Test your network: After you’ve set up QoS, test your network to ensure it’s working as expected. Try streaming video, playing online games, and using work-related applications to see if QoS works correctly. 

You can also set up QoS through your ISP’s app, such as Race CommandIQ. To find out if your ISP offers this service, you can check their website or contact their customer support team. Once you have access to the app, you should be able to find the QoS settings, just as you would with a router’s QoS settings. 

Conclusive Thoughts

In conclusion, Quality of Service (QoS) is a useful tool that anyone can use to ensure a reliable internet experience. Whether you’re a gamer, streamer, work-from-home professional, parent, or small business owner, QoS can help prioritize certain types of traffic on your network, ensuring that critical applications get the bandwidth they need to function properly. 

By using QoS, you can enjoy faster download and upload speeds, great online gaming experiences, high-quality video conferencing and online meetings, and save money on your internet service. 

At Race Communications, we provide our customers with QoS through our home network management app, Race CommandIQ. We strive to give our customers the best Internet experience, and home management apps are a big part of that. Customers can also use the app to check their signal quality, set up parental controls, and more.  

Check out the Race CommandIQ Guide to learn more. And if you’re interested in our services, submit an inquiry or call 877-722-3833. We’re here to help.