Question about Throughput

mickypen

Hello,

I have recently purchased a Zyxel XGS1250-12 switch and have the following setup at the moment:

My desktop is copying files from the NAS box saturating the 1Gb/s bandwidth.

It is not accessing the internet via the router

While this is going on, I am on my laptop on a Teams call. I have never had problems before with Teams freezing, so I am sure that my broadband is more than adequate (75Mb/s).

However while I was doing the copy in the background, my Teams call kept freezing. Surely the Zyxel switch should be able to handle this given that it is a 10Gb router, or am I mistaken?

Is this to be expected, or is my switch not behaving as expected?

thanks

PeterUK

That is a problem that should not happen the laptop should go to the router unaffected by what the desktop and NAS are doing.

Can you do a speed test when and when not the copying is happening and packet loss test

https://devicetests.com/packet-loss-test https://packetlosstest.com/

PeterUK

Not sure if this is the case but maybe you are hitting the limit of the switch Switching forwarding rate using MTU 1514 but if you set on your NIC to use Jumbo frame upto 12KB so try 9014 Bytes that most NIC support and see if that helps.

mickypen

The JumboFrame suggestion, is this on the laptop, the PC or the NAS?

Also do I need to change anything on the switch?

PeterUK

You set on the PC the switch should be ready for JumboFrame

The NAS also needs to support JumboFrame  

mickypen

On another question, I found the solution by switching out a dodgy ethernet cable. I will see if this problem reoccurs with that cable switched to a new one.

PeterUK

was the dodgy ethernet cable to router or laptop as a bad cable on desktop or NAS shouldn't cause a problem for laptop to router

Zyxel_Nami

Hi @mickypen

How is everything going?

Please let us know if the issue still exists.