Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

Why is something being sent while downloading?b

GamerGry123
 Share

Go to solution Solved by mariushm,

It's normal to have some amount of upload while you download.

While a file is transferred, there's a communication between the two computers - the download is segmented in small packets and each time a small packet is received, it's checked to see if it was correctly received and your computer sends a message saying "received the packet ok, no errors, keep going" or if there's errors the computer sends a message "there was an error, send the packet again"

So let's say each data packet is 4 KB in size, and you're downloading at 155 mbps or 19 MB/s or around 20 000 KB/s then you'd have 20 000 KB / 4 KB =  5000 packets incoming each second, and for each one your computer has to confirm it arrived correctly or tell the remote computer to resend.

 

How do I download a file. I have 150Mb / s download and 25Mb / s upload. As I have used all the internet download bandwidth, 4-5Mbps data is sent. How it's working?

1.png

Link to comment
Share on other sites

Link to post
Share on other sites

Upload and download are different, if you've got 150mbps download Internet that doesn't include upload AFAIK. It's from your computer "telling" the server how much of the file is downloaded.

I'm not a professional, just an enthusiast. I don't know everything.

HGST Ultrastar: The last HDD you'll ever need to buy (and the one I always recommend).

Schrödinger's CPU: The Q9650. Is it irrelevant? Is it not? 

Link to comment
Share on other sites

Link to post
Share on other sites

usually that would be accknowledge packages for the datastream. 

mixed with a bit of transfer control. 

Link to comment
Share on other sites

Link to post
Share on other sites

Hop in to Resource Monitor and you should be able to get an idea of what's flowing in and out with the Network and Disk tabs.

ITX & Ultrawide Enthusiast

Link to comment
Share on other sites

Link to post
Share on other sites

are you downloading in the browser?  or via Bit Torrent or something?  

Link to comment
Share on other sites

Link to post
Share on other sites

It's normal to have some amount of upload while you download.

While a file is transferred, there's a communication between the two computers - the download is segmented in small packets and each time a small packet is received, it's checked to see if it was correctly received and your computer sends a message saying "received the packet ok, no errors, keep going" or if there's errors the computer sends a message "there was an error, send the packet again"

So let's say each data packet is 4 KB in size, and you're downloading at 155 mbps or 19 MB/s or around 20 000 KB/s then you'd have 20 000 KB / 4 KB =  5000 packets incoming each second, and for each one your computer has to confirm it arrived correctly or tell the remote computer to resend.

 

Link to comment
Share on other sites

Link to post
Share on other sites

18 hours ago, GamerGry123 said:

How do I download a file. I have 150Mb / s download and 25Mb / s upload. As I have used all the internet download bandwidth, 4-5Mbps data is sent. How it's working?

1.png

How would you expect it to know to send the next section of the file if you weren't confirming you received the last and asking for the next? 😉

 

Downloading is a conversation.  Think of it like two people, if one is talking but can't see the other is listening, they will stop talking.  While humans can use none-verbal communication to indicate you are still listening, machines have to constantly go "yup I heard and understood that, do carry on" or "oops I missed that, please say it again".

Router:  Intel Celeron N5105 (pfSense) WiFi: Zyxel NWA210AX (1.44Gbit peak at 160Mhz 2x2 MIMO, ~900Mbit at 80Mhz)

Switches: Netgear MS510TXUP, Netgear MS510TXPP, Netgear GS110EMX
ISPs: Zen Full Fibre 900 (~915Mbit) + Three 5G (~500Mbit average)

Link to comment
Share on other sites

Link to post
Share on other sites

On 6.07.2022 at 17:58, tkitch said:

pobierasz w przeglądarce? lub przez Bit Torrenta czy coś?  

in the browser

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


×