I just tested it on a Nstreme WDS link. I tried udp test, tcp test and udp test with 100 bytes packets, in one direction, in both directions. I saw no difference.
I enabled ip packing compress all/compress all on the WDS Bridge interface and on the Wireless interface at the same time on the AP and on the wireless interface on the client.
p.s. according to the manual http://www.mikrotik.com/testdocs/ros/3. ... ce/m3p.php
settings are advertised via MikroTik Neighbor Discovery Protocol, and those packets are sent out from time to time, and I tested too fast. This time I will enable packing, wait for 2 minutes for routers to see each others' MNDP packets and test again lol.
p.s. 2 I see it re-advertises via MNDP as soon as I change packing settings, this time I enabled the packing on the bridge interface where I see the MNDP is recieved in Neighbors. Testing now...