The Bridge probe collects bridge-forwarding tables and Spanning Tree Protocol (STP) information for a discovered bridge or switch. Discovery uses this information to create MAC objects, and to build the bridging relationships between MAC endpoints and ports. The Bridge probe uses standard and vendor-specific MIB information.

One Bridge probe is run for each VLAN that is discovered on a bridge or switch, to gather the bridge-forwarding and STP information for the VLAN.