Simultaneous Download and Upload Speeds?

[Tedz002]

The question, with an example:

If the bandwidth for a network is 500 down and 70 up, can it transfer at 430 and 70 simultaneously?

 

I'm just asking this out of curiousity, as I have no idea if this is actually the case.

Thanks for any insight

[LIGISTX]

3 minutes ago, Tedz002 said:

The question, with an example:

If the bandwidth for a network is 500 down and 70 up, can it transfer at 430 and 70 simultaneously?

 

I'm just asking this out of curiousity, as I have no idea if this is actually the case.

Thanks for any insight

Theoretically, you can do 500/70, but that likely won’t happen. 
 

Typically with cable from my experience, once you saturate your upload, your download starts to be negatively affected. I’m actually not entirely sure why this is though… 

[PorkishPig]

There are multiple factors that will determine whether you will be able to use all of your available bandwidth on a single device:

• No other devices are using bandwidth
• You have a reliable connection to your router, either wired or wireless
• Your ISP guarantees transfer speeds of 500Mb/s down, 70Mb/s up in your contract
  • ISPs like Comcast, Charter, AT&T often will not guarantee their speeds during peak hours
• If using Ethernet:
  • All cables are CAT5e or above
  • The Ethernet port on your router/switch supports 10/100/1000

[Alex Atkin UK]

12 hours ago, LIGISTX said:

Theoretically, you can do 500/70, but that likely won’t happen. 
 

Typically with cable from my experience, once you saturate your upload, your download starts to be negatively affected. I’m actually not entirely sure why this is though… 

Saturating upload on any connection will hinder download, as it needs bandwidth to send ACKs back to say its received data and request the next packet.

 

It can also happen before you hit that limit if the path between you and your ISP has hit its limit, as you're always sharing a smaller amount of bandwidth than every user combined is allowed to use.  Broadband (and the Internet in general) is designed around the concept that only a few users will be maxing out their connection at any one time.

 

Its quite common for example for Gigabit fibre to be sharing 2.4Gbit down, 1.2Gbit up between 32 customers.