Method for data graph navigation in a big traffic dataset of a network

The invention relates to a method for data graph navigation in a big traffic dataset of a network. The method comprises: establishing, from the big traffic dataset, a plurality of graphs representing communication traffic dataset over a defined range of time, said establishing of a plurality of graphs being realized by an indexing component. A further step of incrementally establishing a limited number of sub-graphs from the plurality of graphs, said establishing of a limited number of sub-graphs being realized by the indexing component by finding frequent sub-graphs is part of the method. A further step of graphically querying the established list of sub-graphs via a GUI is part of the method.