HP 530 Management Manual page 287

Special Features
Wireless Distribution System (WDS) and Spanning Tree Protocol (STP)
The Access Point 530 can be used as a wireless bridge to connect two different
wired subnetworks together. For example, you can connect wired networks
in two buildings across the street from one another by attaching an Access
Point 530 to each separate network and configuring with a WDS link between
them. This process is illustrated in Figure 8-4.
In this configuration, it is recommended that one radio on each access point
be dedicated to the WDS link (to maximize WDS link throughput); the other
radio can either be disabled or used to service wireless stations.
Figure 8-4. WDS Bridge Between Subnetworks
8-17