VPN site2site to mikrotik

[HS08]

My fortigate located in HQ with internet speed 500Mbps.

My mikrotik router located in the branch with internet speed 150Mbps.

I already success build vpn site2site from fortigate to mikrotik, but the throughput is very low. 

The data transfer speed around 30-40Mbps.

How we can troubleshoot where is the bootleneck?

[abarushka]

Hello,

I would expect that HQ FortiGate is powerful enough to handle over 40 mbps, however I would recommend to check Mikrotik specifications regarding IPsec performance.

In case Mikrotic is not overloaded I would recommend to check the performance in case of UDP and TCP (MSS values < 1300).