The Xen Bridge Configuration module allows you to view and manage network bridges, virtual interfaces (vifs) and virtual machines to which those virtual interfaces are assigned. The left pane displays a list of different bridges created. Clicking on a bridge name will display related properties on the right.
If a virtual interface is attached to a particular bridge, a "+" link appears for that bridge. Expanding the link will display the virtual interface and expanding the "+" link for that virtual interface displays the virtual machines to which it is assigned. Click on the virtual machine names to view their properties on the right.
To delete a bridge, click on the bridge name and then click "Delete Bridge". This will also delete the virtual interface attached to that bridge and the VM(s) to which the interface was assigned.