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I only have a 1 gigabit connection and my router is 1 gigabit. How does this happen? (alien.top)

submitted 1 year ago by Macaroon-Upstairs@alien.top to c/homenetworking@selfhosted.forum

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[–] _Bluestar_Bus_Soton_@alien.top 1 points 1 year ago (1 children)

Some testing software in my experience can give you a higher speed than what you are getting and vice/versa.

For example the Xbox internal test in settings can give me a speed of +600mbps whereas a Google test on a wired connection can give me 300mbps on a 550mbps connection

[–] pcs3rd@alien.top 1 points 1 year ago (1 children)

Additionally, some ISP's may over provision by whatever % to cover overhead and other things.

[–] Northhole@alien.top 1 points 1 year ago

That is correct. E.g. a 500 Mbps subscription is configured as e.g. 540 Mbps, so that overhead will not impact a speedtest.

But with a 1Gbps connection, setting 1.1Gbps might not be possible as the modems/routers can have a 1Gbps port, so there is a "hard limit" on 1 Gbps. Because of overhead, you will typically only get around 950 Mbps on a 1 Gbps connection.

As for Fast, I have seen the same thing as OP. I can get 1.1Gbps on a 1Gbps connection that normally is "limited" to 950-isj Mbps on other speedtests. The modem internally supports more than 1 Gbps, but is limited by the Ethernet-port.