I initially thought it might be referring to deterministic skip lists (Munro, Papadakis, Sedgewick, http://www.ic.unicamp.br/~celio/peer2peer/skip-net-graph/de

I initially thought it might be referring to deterministic skip lists (Munro, Papadakis, Sedgewick, http://www.ic.unicamp.br/~celio/peer2peer/skip-net-graph/deterministic-skip-lists-munro.pdf http://www.ic.unicamp.br/~celio/peer2peer/skip-net-graph/det...), but the "linking on traversal" part stumps me. Maybe it's referring to the top-down approach in section 3 of the paper.