Analysing connections in a computer network, receiving checksums of data items in computer networks and determining error correction to data

摘要

Analysing a connection between two computers, comprising generating output data indicating performance of the connection, the output data (graph) comprising a first predetermined number of data points (e.g. time period), each data point (time period) having a value selected from a predetermined second number of discrete data values (i.e. values 0-15). Each data point represents a corresponding flow value that is the amount of data passing between the two computers in each predetermined time period. A second embodiment of the invention includes transferring/receiving data from/at a computer from another computer, comprising determining/receiving a checksum of a data item, determining/receiving a plurality of secondary checksums, identifying the data item based upon the checksum and secondary checksums. A third embodiment of the invention includes receiving error correction data associated with received data, receiving secondary data with the received data, processing the data and error correction data to identify at least one error in the received data, and determine at least one correction to the error, processing the secondary data to determine whether the at least one correction should be made.