Is ethernet bonding at the hardware level in CCR1072-1G-8S+? Rephrasing in another way, is it possible to obtain wire speed 40G if I bound four 10G interfaces in this device or bounding is depending on CPU capacity?
It’s in software, but you should be able to use wirespeed. See http://www.stubarea51.net/2015/10/09/mikrotik-ccr1072-1g-8s-review-part-3-80-gbps-throughput-testing/
Hi Patrick. This benchmark doesn’t involve ethernet bounding. So it does not serve as an evidence I would achieve what I want to with CCR1072-1G-8S+.
Hi there
You’re right, I’m sorry for that. But I don’t think you will face into performance issues with CCR1072 
Regards
Patrick
It is likely you will face performance penalties when using bonding on the CCR1072.
Unfortunately RouterOS v6 only supports fastpath RX, not fastpath TX on bonding interfaces.
This means that traffic needs to take the slow path when using bonding interfaces.
Hopefully this will change at some point in the near future.
thats perhaps the Only possible advantage of aggregated switch chips used in cheaper devices(eg “multiple ports in one IC”), but among them - models with natively supported bonding not common(same about say MacSec, PortSec+ and other essential stuff, not working w/o proper PHY under it).
I would like to know the answer to this question as well.