In one embodiment, a Transit Information Bloom Filter signal component is generated for use with a routing protocol control message, the TIBF signal component identifying at least one parent node for a corresponding routing topology. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which project into the area of the ends of the bristles, which legs carry mutually facing supporting surfaces for the bristles. The key landmarks may be detected using discriminative joint contexts representing combinations of multiple key landmarks. One or more dice are attached to the top surface of the metal substrate, wire bonds are used to connect the dice through open slots on the metal substrate to the NiAu plated pads on the interconnect substrate.