Low speed

RouterOS General
1

Good afternoon.
Situation:
We have a local network and a remote server.
The server has vmware esxi 6.5 installed and several virtual machines (win) and RouterOS are raised.
The ipsec tunnel is up (encryption aes-128, modp2048) between RB3011UiAS and RouterOS v6.40.4.
On the router side, the Internet speed is 150 Mb / s. From the side of RouterOS - 500 MB / s.
When copying files from one side to another, the speed rests at 5-6 MB / s.
On the router and on the routeros, the CPU load when copying does not exceed 10%.

Tell me where to dig? Or with the current topology, is this the limit?
If you need more information, ask.
Thank you in advance.

2

Hi have you tried measuring the bandwidth without encryption? This would be then your baseline. Your baseline should be close to channel limit, so the lowest of the two, 150mb/s

With encryption it will be reduced, since 3011 doesn’t do IPSec in hardware.
What do you mean by “RouterOS”? CloudHostedRouter?

Another thought wrt encryption: do you have fragmentation (&/of reordering) of internal packet when encapsulating? That will definitely kill throughput.