【正文】
formed when the overlay links are established arbitrarily. Such works can be easily constructed as a new peer that wants to join the work can copy existing links of another node and then form its own links over time. In an unstructured P2P work, if a peer wants to find a desired piece of data in the work, the query has to be flooded through the work to find as many peers as possible that share the data. The main disadvantage with