This object describes the neighboring router's capabilities. The following shows the position of each bit: bit position meaning 3 mtrace bit 2 generationID bit 1 prune bit 0 leaf bit The leaf bit indicates that the neighbor has only one interface with neighbors. The prune bit indicates that the neighbor supports pruning. The generationID bit indicates that the neighbor sends its generationID in Probe messages. The mtrace bit indicates that the neighbor can handle mtrace requests.