Why is 1000mbps internet only guaranteed at 900mbps and what’s the equipment needed to get the 1000mbps advertised?

Question

Why is 1000mbps internet only guaranteed at 900mbps and what’s the equipment needed to get the 1000mbps advertised?

In: 90

Answer 1

Among the many other valid reasons posted, many routers and ONTs only have 1 Gbps Ethernet transceivers. 1 Gbps Ethernet can do a theoretical max of 940 Mbps without jumbo frames and 990 Mbps with them – and it will always be a little lower in practice. If all devices in the chain had 2.5 or 10 Gbps Ethernet you would get very close if the ISP wanted.