Only 55Mb on a 70Mb internet connection

RouterOS General
1

Hi, I have a fiber optic link which I recently upgraded from 50Mb to 70Mb, the problem is that all I can see is 55Mb. The company that provides the service came and ran tests to saturate the link and check if the speed was correct and they got 70Mb perfectly , if I connect directly to the switch that is connected to the link and I assign a static IP I can see the 70 Mb but once I connect to my server IBM Xeon Quad Core with Mikrotik as much as I can see the link is 55Mb. Even if I connect two network cables between the server and the switch and balance the traffic between the two links it does not pass the speed of 55Mb.

I have others links wich I use for load balancing normally, if I put all the links to work my internet average consumption is around 75Mb but if I redirect the traffic to the fiber it does not exceed 55Mb. I reviewed the configuration of the Mikrotik but can not find anything that could be limiting this, any ideas?

2

What Mikrotik device are you using?

3

what kind of ques does your interface have? Try use only hardware, and ethernet default. If its just a default route to internet, you should be able to get about 70Mb from an old RB532.

4

Thanks for the reply, it´s a IBM xeon quad core with mikrotik 5.20. The queue for the interface is ethernet default, I can’t change it to only hardware because it gives me an error message that only hardware queue is not supporyed for the interface.

5

Use fast ping to hunt for packet loss and delay that may interfere with TCP.

After you read this http://wiki.mikrotik.com/wiki/NetworkPro_on_Quality_of_Service do you have any additional questions?

6

Thankyou that really helped to find the solution, the problem was on my service provider side, thanks!