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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?

Note:
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.