Step 6
******

                                     6LBR
                                (IPSP: Router)
	                        /            \  			
                               /              \ 
                           6LR                 6LR
                     (IPSP: Router)       (IPSP: Router) 
                      /           \       /            \
                     /             \     /              \
                    /               \   /                \
                 6LN                 6LN                  6LN
            (IPSP: Node)         (IPSP: Node)         (IPSP: Node)