Although not mainly a router, the CRS317 test results show that it is able to route and bridge at over 3000Mbps, but the block diagram shows only a 1Gbps connection to the cpu.

Is there some other magic that is going on, or is the connection to the CPU actually 10Gbps? Has anyone checked actual routing/software bridging throughput independently?

https://mikrotik.com/product/crs317_1g_ ... estresults
https://i.mt.lv/routerboard/files/CRS31 ... 085108.png

It can switch 3000 Mbps (1500 up and 1500 down). It can't route this much. While switching, all the hard work is done inside the switch chip - it never reaches the CPU.

It can switch 3000 Mbps (1500 up and 1500 down). It can't route this much. While switching, all the hard work is done inside the switch chip - it never reaches the CPU.

Well it can switch a lot more than that between all ports, 158,906Mbps. I'm strictly taking about cpu bridging/routing, which the chart shows the CRS317 can actually software bridge 1518 sized packets at 3258.2Mbps (route at 3089.4) yet the block diagram shows a connection of only 1000Mbps.

It can switch 3000 Mbps (1500 up and 1500 down). It can't route this much. While switching, all the hard work is done inside the switch chip - it never reaches the CPU.

Well it can switch a lot more than that between all ports, 158,906Mbps. I'm strictly taking about cpu bridging/routing, which the chart shows the CRS317 can actually software bridge 1518 sized packets at 3258.2Mbps (route at 3089.4) yet the block diagram shows a connection of only 1000Mbps.

Sorry, my mistake. The first two lines are "bridging" - which is done in hardware. But the last three lines are routing indeed. That is weird. It must be a typo, or something like this. You are right: I can't see how this would work out.

The connection from switch chip to CPU of CRS317 is not 1Gb/s, it is an internally connected bus and the speed is not documented.
We will fix the diagram.

https://i.mt.lv/routerboard/files/CRS31 ... 102556.png

The connection from switch chip to CPU of CRS317 is not 1Gb/s, it is an internally connected bus and the speed is not documented.
We will fix the diagram.

https://i.mt.lv/routerboard/files/CRS31 ... 102556.png

Thank you Normis!