Hi all..
just wonder know, what’s the different the wds and mpls setting for the mikrotik wireless ?
Now that’s a large question. Look up the related technologies on the wiki, or proper wikipedia. They’re completely different and that’s not really something you can cover in a forum post.
i just wonder know, how that such setting will effect the user?
in term of speed, data transmission and etc…
This is like Loch Ness monster … anyone can pretend they saw it… but no one actually can prove it. 
And when they can’t prove it they send you to look in the archives because “it’s too big to fit in a post”.
If anybody has results before and after switching from WDS to MPLS: PLEASE share them.
I personally switched from WDS to MPLS/VPLS on two GROOVE units and got 10% decrease in routeros’ bandwidth tests (traffic passing through the devices, not directly on them).
Unfortunately I didn’t had the ocassion to test the real speed from a PC on MPLS (in WDS mode I get around 19-20 Mbps with one connection and around 30 Mbps with two parallel streams).