Hello,
just got myself a gigabit PPPoE connection subscription and i don’t manage to get on speedtest more then 200 mbps.
With the GPON connected to the PC directly i get 400-410 mbps.
As settings for PPPoE i have a MTU of 1452, no firewall rules except the masquerading.
I turned off most of packages from the system also.
When I select a device for router/nat/firewall role, I look always before buying unknown device at its performance table on the product page: http://routerboard.com/RB2011UiAS-2HnD-IN
on last line, Mbps value in 512 byte column. This is for me the common expectable performance value.
Sure it is not exact or precise, but according to my experience it roughly corresponds to real situations. This value I also use to compare devices against others.
I suggest to all to have a look at it also before buying overestimated router.
As the performance table for 850gx2 is missing on the product page and I have no personal experience with it, I am in doubt if it is able to nat at 1gbps speed. Obtain the confirmation before buying again…
Thanks for the suggestion with buying smart, when i bought tthe router one year ago i had a 15/15 mbit connection with hopes up for 50 mbit, also, the only thing with a gigabit connection is my pc, so even the 5gigabit ports were supposed to be useless for quite some time.