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CuninganReset
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SSTP over 1 Gbps link bad performance

Fri Jun 14, 2019 1:54 pm

Hello guys.

I have connected two CloudCore 1009 over a 1Gbps link using SSTP.

A bandwidth test between the CloudCores is around 840Mbps in TCP and 1 Gbps in UDP.

But when doing the bandwidth test over the SSTP tunnel I am getting 40 Mbps or little more and I do not know the reason.

Both CloudCores support hardware AES256 coding and the CPU are not high at all.

Any of you have suffered this issue before??
 
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sebastia
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Re: SSTP over 1 Gbps link bad performance

Fri Jun 14, 2019 2:10 pm

probably related to fragmentation, you'll need to adjust the MTU to max allowed by tunnel.
 
sindy
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Re: SSTP over 1 Gbps link bad performance

Fri Jun 14, 2019 2:44 pm

Unless something has changed recently, only IPsec can make use of hardware encryption on Mikrotik.
Instead of writing novels, post /export hide-sensitive. Use find&replace in your favourite text editor to systematically replace all occurrences of each public IP address potentially identifying you by a distinctive pattern such as my.public.ip.1.
 
r00t
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Re: SSTP over 1 Gbps link bad performance

Sat Jun 15, 2019 3:34 pm

Also running tunnels over TCP is bad for performance and latency. Try IPSEC and results should be much better... hardware crypto offload will work and there will be no TCP to cause issues.

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