Excessive latency creates bottlenecks that prevent data from filling the network pipe, thus decreasing effective bandwidth. The impact of latency on network bandwidth can be temporary lasting a few seconds or persistent constant depending on the source of the delays.
Think of latency as a journey on a road. The longer the road is, the longer will it take you to travel or reach your destination. If the road is shorter, your trip will be shorter and you will reach your intended destination quickly.
If we use the same analogy, then the width of the road can be compared to bandwidth. The wider the road is, the easier it is for more traffic to travel on the road at the same time. Latency is affected by the type of connection, distance between the user and the server and the width of bandwidth. The Internet connection is impacted by the type of service you use to access the Internet.
This is how latency can affect your browsing:. However, it will take a lot of time for the web page to load completely. While the information in text will be loaded quickly, images will be shown to the user one-by-one. Depending on the size of the images, the images will load in a phased gradual manner.
Distance : The closer you are to the server, the faster the information gets to you. CDNs enable enterprises to place servers where their maximum users reside. CDNs are extremely popular and are used by enterprises that receive large amounts of traffic on their websites. Bandwidth: I f you have small bandwidth, you are more likely to experience congestion which means a slower Internet connection.
As one can see, Internet latency can be caused by multiple factors. Besides the distance between the computer and the servers that are serving information, Internet latency can also be due to the type of Internet connection used. The medium through which the Internet is accessed also makes a huge difference.
For example, a computer or a laptop connected via an Ethernet cable can reduce Internet latency significantly, when compared to a wireless or a Wi-Fi connection. Old routers or the number of people connected to a particular router can also be a significant factor in Internet latency. By caching content in nearby servers, a CDN can reduce latency in a significant manner. Similarly, web administrators can also take efforts to reduce the latency by optimizing images for faster loading and reducing actual file sizes.
The relationship between latency and bandwidth determines whether we consider an Internet connection to be fast. Latency doesn't affect bandwidth, but insufficient bandwidth can reduce latency. A high-latency, high-bandwidth connection would be slow to start downloading a Web page but would load quickly as soon as the download starts. A user loading a page with a high-latency, high-bandwidth connection that requests a page download experiences a page that hangs on a blank page for a moment and then loads almost instantly.
A low-latency, low-bandwidth connection would quickly start loading a Web page but would take a longer time to finish. There is a cross-section file size determined by how a connection's latency and bandwidth relate -- anything smaller than a certain size will load faster with a lower latency, and anything larger will load faster with higher bandwidth.
For example, a 1KB file would download much faster on a connection that has a 25ms ping and a 2Mbps bandwidth rating than it would on a connection with a ms ping and a 50Mbps bandwidth rating. Both connections have enough bandwidth, so the bandwidth isn't a factor. Latency is relevant in smaller tasks, whereas bandwidth is relevant in larger tasks. A lower latency connection would be better for doing things like online gaming, instant messaging, teleconferencing and light website browsing.
The higher bandwidth connection would be better for downloading large files, streaming videos and viewing complex, interactive websites. Imagine that I have a gallon pool and that I have a 1 gallon bucket for carrying water and a 5 gallon bucket for carrying water.
It takes me 1 minute to carry either bucket from my water supply to the pool. If I use only the 1 gallon bucket to fill the pool then I'll need to make trips, totaling minutes of time spent carrying water from the water supply to the pool.
If I use only the 5 gallon bucket to fill the pool then I need only make trips, totaling minutes of time spent carrying water from the water supply to the pool. The time it takes to walk to the pool latency doesn't affect how much water I can carry with each bucket bandwidth and conversely, the size of the bucket bandwidth doesn't change the time it takes to walk to the pool latency. The end result is that the pool will fill up 5 times faster when using the 5 gallon bucket than when using the 1 gallon bucket because the 5 gallon bucket is bigger, not because it's faster.
Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Can excessive latency affect throughput? Asked 4 years, 2 months ago. Active 4 years, 2 months ago. Viewed 2k times. Improve this question. I typed "how does latency affect tcp bandwidth" and found a number of useful articles, including this one. This question is off topic for Server Fault.
Latency doesn't affect bandwidth. They're two different things. More or less latency doesn't change the bandwidth and more or less bandwidth doesn't change the latency. Perhaps you're wondering how bandwidth and latency affect network performance and how more or less of one or the other affects the perceived "speed" of the connection?
Latency, bandwidth, and throughput are each a different thing. Your link rate is your bandwidth, the latency is the link delay, and throughput is how much data you can push across the link taking into account delays, including the host processing delays, and protocol overhead in a specified time period.
What happens if you set the rate to 15Mbps? Do you get almost 15Mbps? I suspect you are just hitting a limit of the simulator on your hardware. Appleoddity the rate keeps reducing as I increase bandwidth. Another observation, if I make the delay 1ms, I get throughout around 40mbps, so I don't think hardware is at fault.
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