I am testing my new CCR1009-8G-1S-1S+ with ROS v6.35.2. I have the SFP+ 1m direct attach cable from MikroTik.

If I plug in one end of the direct attach cable to the SFP+ port, the fans turn off, and it will not pass traffic over the SFP+ link.


[I can successfully use the cable to connect the CCR SFP to the SFP port on an RB260GS, so the cable appears to be good. Also, I can put an alternative brand RJ45 SFP in the SFP+ port without any problems.]

Is there a known issue with this direct attach cable and the CCR1009 SFP+ port?

Thank you, Chris

Try to turn off autonegatiation at SFP+ port and set speed 10G. Device reboot may be needed.