Routing performance of CRS-125-24G-1S running ROS 6.18?

RouterOS General
1

Hi,

I have a CRS connected to WAN 330/330 Mbps (IPv4 w/multicasting). WAN is working on full speed ±5Mbps - tested several times using speedtest.net (directly connected PC, or CRS in bridge mode). But

  • using my own firewall rules I found limit on 115 Mbps download then 95 Mbps upload (not tested simultaneously). It includes multicasting.
  • with default config and minimal firewall rules (NAT + 6 others) it is possible to achieve 135 Mbps download then 100 Mbps upload (not tested simultaneously).
  • with CPU clocked to 750MHz I can push default config 155 Mbps download then 100 Mbps upload (not tested simultaneously).

In all cases CPU seems to be limit as it jump to 90-100%. But my expectation is higher then given results as CPU is the same as RB951G with published results more than double.

Unfortunately I don’t have additional RB to test different HW.

Any idea about solution of the problem? How to do profiling and perfomance optimization? Somebody can confirm behaviour?

Thanks.

2

The chart does not show nat and contrack, real will eat resources too. My guess is that your at max speed for that hardware