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

Why ?
Collisions and retransmission.

The more you load the line the more there are collisions and retransmissions.

Keep in mind that once the link is loaded at 70% no performance SLA apply anymore.