Microtik CSS610-8G-2S+in not recognising know-good direct attach copper sfp+ ~ am I missing something

Heyas ~ I just picked up an 8 x 1Gb + 2 x 10Gb switch from Microtik to use in an office at the end of my network. To be clear, the direct-attach copper cable I am trying to use works perfectly well with other Microtik products namely the popular 4x 10Gb + 1 x 1Gb dumb switch they sell.

I can plug in an SFP+ 10Gb baseT module and it works just fine ~~ but this simple direct attach copper cable just will not work even tho it works with the Microtik dumb switch.

I have read in >>1<< post elsewhere that Microtik is shipping with questionable CloudSwitch firmware that causes the SFP+ ports to act oddly. Has anyone else heard this since it was only 1 guy on the internet somewhere.

thanks !!

EDIT - OK I have just found more confirmations (amazon reviews) of the SFP+ ports being wonky with DAC cables and people are blaming “release candidate” firmware.

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I use CloudSmart CS326-24G-2S+RM with 3m DAC cable attached to Mellanox CX311A, I can’t confirm that it runs at full 10G (other devices are just 1G, and NAS is 6x spinning rust), but I had to set port auto negotiation to off, and set to 10G manually.

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OK thanks, I’ll get in the weeds with the admin interface and see what I can do based on your experience.

Until Mikrotik fixes their SWos software for their 8G-2S+ switch to properly communicate over the SFP+ ports, I am using their excellent dumb SFP+ x4 switch as a translator between the server and the SWos switch.

This works perfectly.

Intel based SFP+ NIC <-> 10Gb DAC <-> Mikrotik SFP+ x4 dumb switch <-> 10Gb DAC <-> Mikrotik SWos 8G-2S+ switch

So it looks as though the SWos software is still unable to reliably speak directly to Intel based 10Gb SFP+ NICs as of the latest SWos release but it speaks perfectly well to a dumb switch that is then speaking to the Intel SFP+ NIC