I just setup my CRS125-24G-1S (v6.27) and I’m trying to get VLANs to work properly.
Full configuration: http://pastebin.com/ghtkeLeb
My plan is to have 3 VLANs. VLAN 160 (Management traffic), VLAN 170 (VM Network) and VLAN 1000 (DMZ). When I create master port (port 
and add slave ports to it (Ports 9 through 20) everything works fine. When I create VLAN 160 and add the same ports, everything works.
The wrinkle is when I add in VLAN tagging and ingress VLAN tags. The idea is to have any untagged traffic map to VLAN 160. I have a couple of machines on the network that will never touch VLAN 170 and 1000 so that port doesn’t need any of this configuration (Port 19 is configured like that in the configuration above) however I would like all the ports to be the same configuration. Each port needs to be a VLAN trunk port since each port will be connected to an ESXi server sending those VLAN tags.
I’ve followed the CRS documentation and examples and no joy.
Any help would be appreciated.