One PCIe four-port ethernet card vs Four PCI single port ethernet cards

venky262

Commendable
Jul 6, 2016
5
0
1,510
Hi ,

Have been wondering of setting up a machine with multiple interfaces to different networks. I am wondering which would be the best option in terms of throughput and avoid contention between flows going through different interfaces.

Option 1 is to use a four-port ethernet card which plugs into the PCIe interface.

Option 2 is to use four standard PCI ethernet cards.

I haven't found an exact reference that would help. I will likely run all interfaces with gigabit ports, and would in cases even push these interfaces to the max as I will run some experiments from time to time.

Thanks!
 

venky262

Commendable
Jul 6, 2016
5
0
1,510


Thanks! As a general rule, what would be the ceiling of the throughput that I can achieve through PCIe x4 card? i.e., the throughput that I can achieve from the system board to the PCIe slot.