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MikroTik CCR1072-1G-8S+ Port SFP Stuck Issue

Posted: Wed Nov 24, 2021 9:03 pm
by AhmedQadir
Hey Guys,

i have a problem in mikrotik CCR1072-1G-8S+ my Router have below configuration

SFP+ (1)=Main Port 10G
SFP+ (3,4,5,6)=To Other MikroTik Switches like (CRS125-24G) (Auto Negotiation is On)

So my issue is there sometimes SFP+ from 3 to 6 one of them the service will down and still port status is (R) once I disable and reenable the Port again the service comes back to normal, is it the general issue or need some extra configuration should be done there?

RouterBOOT and RouterOS is latest one 6.48

Re: MikroTik CCR1072-1G-8S+ Port SFP Stuck Issue

Posted: Thu Nov 25, 2021 10:35 pm
by mducharme
We have had this issue randomly with both CCR1072 and CCR1036 models where sometimes one or several SFP+ ports start only passing traffic one way, but both sides show running, and have to bounce them like this. In our case we use the MikroTik SFP+ DAC cables in those ports - I suspect the problem may not occur if optics are used instead but haven't tested this.