Instead, they send a series of discrete packets. They don't send a continuous never-ending stream of bytes. Just as we acknowledge what someone is telling us in conversation (with the occasional nod of the head, "uh huh," "go on," and similar utterances), most Internet protocols have a similar system of acknowledgement. However, this isn't the only way in which latency can make its presence felt it's merely the most obvious. The time delay is directly observable, and it disrupts the conversation. There are some applications, such as voice and video chatting, which suffer in exactly the same way as satellite calls of old. Conversation takes on a disjointed character because of the noticeable delay between saying something and getting acknowledgement or a response from the person you're talking to. Anyone who's used one or seen one on TV will know that the experience is rather odd. Nowadays, almost all international phone calls are typically placed over undersea cables, but not too long ago, satellite routing was common. Some are immediately obvious others are less so. If the game you're installing from Steam is about 3.6GB and your bandwidth is about 8Mb/s, it will take about an hour to download. If a YouTube stream has a bitrate of 1Mb/s, it's obvious that to play it back in real time, without buffering, you'll need at least 1Mb/s of bandwidth. It's easy to understand why bandwidth is important. Depending on what you're trying to do, high latency can make your network connections crawl, even if your bandwidth is abundant. Latency-the time it takes the message you send to arrive at the other end-is also critically important.
Whether it be the gigabit per second that your Ethernet card does, boasting about your fancy new FTTP Internet connection at 85 megabits per second, or bemoaning the lousy 128 kilobits per second you get on hotel Wi-Fi, bandwidth gets the headlines.īandwidth isn't, however, the only number that's important when it comes to network performance.
Video buffering or slow downloads? Blame the speed of lightīandwidth-the number of bits per second that a device or connection can transfer every second-is the number that everyone loves to talk about.Meeting the bandwidth demands of taking your business into the cloud.Merge ahead? Why it’s not time to converge your networks.Robots and telepresence: Bandwidth-heavy tools invade the business world.
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