Orbi 870 WAN performance

Alas, the Netgear Team does not participate in the Community Forum.  With this being a recent purchase, it might be useful to take advantage of the 90 days of 'complimentary support' that Netgear provides with new purchases and raise the question with Netgear support: https://my.netgear.com/support/contact.aspx

Random thoughts.... and a question.

• Even though Ethernet connections autonegotiate a "speed", it is physically impossible to transmit data over the link at that speed.
  https://en.wikipedia.org/wiki/Autonegotiation
  There is "overhead" in Ethernet transmission, including spaces between packets, so it is possible to get close to the rated speed, but not actually reach that speed.
  (I regularly measure about 950Mbps on a gigabit Ethernet link.)
  Thus, no.  The Orbi 850 will never actually transmit/receive data at 10Gbps.
• The Ookla Speed Test software that Netgear bundles into the router firmware claims to be capable of measuring 10Gbps
  (subject to the overhead limitation mentioned above)
  https://www.ookla.com/articles/10-gbps-speedtest
  However, that implies that the entire pathway across the internet between the ISP connection and the Ookla server farm is capable of 10Gbps.
  One of the annoying features of Netgear's Ookla Speed Test is that it does not reveal exactly which Ookla server was used for any specific test.
  (whereas the Ookla 'app' for most platforms clearly states which server is being used.)

DTN01 wrote:

ISP speed tests from ONT are at advertised speed.

What equipment is used to verify this?  (A computer with a 10G Ethernet adapter?  There are a number of 10G Ethernet adapters on the market, and it would be interesting to know which was used for this experiment.) How cool to have a computer that can actually process a full 10G Ethernet stream!