What Really Make a Network Latency | Jpress
Understanding what is network latency is crucial for anyone looking to optimize application performance, improve user experience, or troubleshoot slow connections. In this post, we’ll explore the what is network latency and common causes of network latency.
What is Network Latency
Network latency, often measured in milliseconds (ms), is the time it takes for a data packet to travel from its source to its destination and back (round trip time, or RTT). High latency can manifest as slow page loads, choppy video calls, and lag in online gaming, whereas low latency delivers a snappier, more responsive experience .
Common Causes of Network Latency
1. Distance (Propagation Latency)
The physical distance between the sender and receiver can increase latency because data travels faster over shorter distances.
2. Network Congestion
High traffic on a network can slow down data transfer. Just like a busy highway at busy hour, if there are too many data packets trying to move through the same routes, things slow down. This is common during peak usage times when everyone’s online at once.
3. Old Network Hardware
Outdated or poorly configured hardware, such as routers or modems, can also contribute to latency. They can delay how quickly data gets processed and sent along its way.
4. Server Performance
Every time data hits a device, like a router or a server, that device needs to process it before sending it on. Even the server you’re trying to reach has to process your request, find what you’re looking for, and send a response back.
5. Queuing Delays
When routers or servers are busy, incoming data gets placed in a queue until the device is ready to handle it. The more crowded the network, the longer the wait.
6. Size and Data Type
Streaming high-definition video or downloading large files requires more bandwidth and processing. That extra workload can result in higher latency, especially if your network isn’t optimized for heavy lifting.
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