Wireless Distribution System (WDS) allows you to make a completely wireless infrastructure. Normally, the access points must be connected with a wire (LAN). These access points create cells allowing a wireless connection. The WDS feature allows the access points to be wirelessly connected. This feature is normally used in large, open areas where pulling a wire is restricted or not cost effective and in residential circumstances.
If the structure utilizing an access point is too large to cover using one AP, a second AP would be used as a wireless repeater.
The WDS has forwarding functionality for extending the range of an AP. By setting up an extended service set (ESS) between access points. Stations can intersect with any AP of this ESS and move between the coverage of both APs while the higher layer network connection remains intact.
Note: The WDS feature is not completely specified in IEEE or Wifi standards. Therefore interoperability between 802.11 products of different vendors is not guaranteed.