I'm trying to do LACP and it's not working with a Cisco SG220. I have worked with Cisco stuff for 4+ years, and I have 3 other lacp groups setup to my SG220 (linux, freebsd, and another dell switch). The one to the Mikrotik simply doesn't ever come up.
However if on the Cisco switch I set "channel-group 5 mode on" rather than "active/passive" it will come up but isn't dynamic. I also have to set static (or equivalent option) on the CRS317 and choose a group number.
Not so happy about my experience with the Mikrotik so far (SwOS 2.7)