Hi. I’m seeing a port go up an down over and over again. The especially odd thing is that there is no cable plugged into this port (port 8 on CCR1009-8G-1S-1S+ running 6.19/3.18). This is the only one of eight deployed CCR1009’s to do this for me.
possible it’s only a SW bug, no soldering neccessary: http://forum.mikrotik.com/t/fixed-ccr1009-8g-1s-1s-port-flapping-ghost-ports/81193/1
I updated from 6.19 to 6.21.1/3.19 and haven’t seen the port flapping in the past day or so. Yay!