Can jitter be higher than latency?

Answered by Phillip Nicastro

It is possible for jitter to be higher than latency. To understand why, let’s first define what latency and jitter are.

Latency is the time it takes for a packet to travel from the source to the destination. It is typically measured in milliseconds and represents the delay experienced by a packet as it traverses the network. Latency can be affected by various factors such as the distance between the source and destination, the quality of the network infrastructure, and the congestion levels on the network.

On the other hand, jitter refers to the variation in the arrival time of packets at the destination. It is a measure of the inconsistency or deviation from a standard rate of delivery. Jitter can be caused by network congestion, routing issues, or varying levels of traffic on the network.

Now, let’s consider a scenario where the latency is relatively low, say 10 milliseconds. This means that packets are being delivered from the source to the destination with minimal delay. However, if the network experiences high levels of congestion or has unstable performance, it can result in significant variations in the arrival time of packets at the destination. In this case, the jitter could be higher than the latency, even though the latency itself is relatively low.

To illustrate this further, let’s imagine a real-life situation. Suppose you are playing an online multiplayer game with a latency of 10 milliseconds. This low latency ensures that your inputs are being transmitted quickly to the game server, allowing for smooth gameplay. However, if there is high network congestion or fluctuations in the performance of your internet connection, you may experience significant variations in the arrival time of the server’s responses. This can result in a jitter that is higher than the latency, leading to a choppy or inconsistent gaming experience.

While latency and jitter are related measures of network performance, they represent different aspects. Latency measures the time it takes for packets to travel from source to destination, while jitter measures the variation in the arrival time of those packets. Therefore, it is indeed possible for jitter to be higher than latency in situations where there are significant inconsistencies or fluctuations in the delivery of packets.