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Method for monitoring traffic in a network and a network

  • US 9,338,075 B2
  • Filed: 10/09/2009
  • Issued: 05/10/2016
  • Est. Priority Date: 10/09/2009
  • Status: Active Grant
First Claim
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1. A method for monitoring traffic in a network, comprising:

  • monitoring activity of at least two monitoring probes of the network coordinated by a coordinating means;

    operating at least two nodes of the network as the coordinating means, the at least two nodes belonging to a peer-to-peer system; and

    splitting a responsibility for coordinating the monitoring activity of the monitoring probes between the at least two nodes according to a compressed representation of flow parameter keys, whereinupon detection of a new flow at least one probe computes a hash value of one or more certain fields of the flow identifying the flow,the hash is the flow 5-tuple consisting of IP source and destination addresses, protocol type, and source and destination ports,after having computed the hash value, the at least one probe performs a content-based lookup of the computed hash value for obtaining the address of the responsible node which will be responsible for coordinating the monitoring of the flow, and after having obtained the address of the responsible node, the at least one probe sends a message to the responsible node including definable data types of the flow and/or a description of the flow,wherein transparent handling of node failures and new node joins is used within the network.

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