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FG200F with Mikrotik S+RJ10 SFP+

So I have an FG200F at home and I'm about to upgrade my residential comcast circuit to their top tier speeds, and their new device comes with a 2.5gbps RJ45 interface on it. I was originally thinking of using my Mikrotik CRS309 as a media converter, but I'm not comfortable enough with Mikrotik/SWOS to put it on the internet (between cable modem and firewall). So on a whim, I plugged my Mikrotik SFP into one of the 10g SFP+ ports to see the response. I also configured a port on my Cat9300 at 2500gbps. What do you know, the interface came up! FG says it's linked at 10G Full, Cat shows 2500 full. So I configured another system on the same VLAN so I could test IP functionality. Ping appears to be working. Changed the Cat port to 5000/full, dropped about 6 ping packets and interface came right back up. Did the same up to 10000, same response.
Contributor II

Can you please provide the output of  "get system interface transceiver" and diag hardware deviceinfo nic <portnumber> 

Rosa Technocrat -- Also on YouTube---Please do Subscribe
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