Well the best article written article. on how to set them up is by pe1chl.
http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1
With my caveat…
^^^My advice is not to config/copy pcunite’s formats verbatim from the first link above, its stilted and confusing. Instead simply using winbox, work through the Configuration Steps logically.
FIRST though, take one etherport and configure it so that it is accessible off the bridge to avoid getting locked out!!. SEE PARA A. above!!!
Add Bridge (or modify default Bridge as required)
Add VLANS with the parent interface being the Bridge
Create Subnet Structure for each VLAN (and likely modify the default subnet to be one of the VLANs)
Construct /interface bridge ports ( etherports and WLANs as applicable )
Construct /interface bridge vlans ( tagged and untagged **** Should match up with /interface bridge ports as a cross-check )
Make Changes to LAN Interface List ( remove bridge and add all vlans typically)
Add Management/Base Interface List & applicable members (Base Vlan and off bridge etherport for example)
Adjust Firewall Rules as necessary (Base List to Input Chain, LAN List to Input Chain for DNS, etc. ( required router services ))
Go to CLI and run export and see if any errors crop up.
Turn on bridge vlan filtering.
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FIRST though I recommend setting up one port could be temporary if you have no spare ports for example.
After the default setup, ethe1 WAN, ports 2-5 on bridge, take ether port 5 off the bridge.
Then follow this guide. The idea we are creating a safe spot to config the router and its bridge without hiccups.
https://forum.mikrotik.com/viewtopic.php?t=181718
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As far as vlans go
Videos For setting up MT
https://www.youtube.com/watch?v=pdpFAxwocTo&t=467s
MT part1- https://www.youtube.com/watch?v=US2EU6cgHQU&t=299s
MT part2- https://www.youtube.com/watch?v=YMwOrc0LDP8
What are VLANS
https://www.youtube.com/watch?v=jC6MJTh9fRE
https://www.youtube.com/watch?v=2QOFNTF4nyU
https://www.youtube.com/watch?v=MmwF1oHOvmg