Hi All
I have A CRS 309 Mikrtoic and TP Link Switch 1700 switch and want connect them together with a SFP + cable to use all 10 Gbit Ports but the Problem is when i connect them with a SFP + directly from Port 1 Mikrotic switch to the TP Link switch as example Port 28 (TP link has 4 Gbit SFP+ port 24 -28)with a 10 Gbit SFP+ cable then the performance is terrible i have max 20 MB/s (speed between the switches)
My question is there a special Cable needed as example SFP+ crossover cable ?
Both Switch has the default configuration what i have to set on both switches to connect them with a better performance ?
Maybe this is a dump Question but when the swiches are connected together with RJ45 then i have the full performance 1 Gbit but i want 10 Gbit 
thank you very much
Michael