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Self-managed distributed mediation networks

  • US 8,812,729 B2
  • Filed: 04/26/2012
  • Issued: 08/19/2014
  • Est. Priority Date: 06/12/2006
  • Status: Active Grant
First Claim
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1. A distributed mediation network, comprising:

  • a plurality of types of network modules forming a network topology, including;

    local points of presence (LPP) modules for receiving and transmitting network traffic between the mediation network and client programs;

    mediator (M) modules for hosting mediation tasks;

    mediator router (MR) modules for analyzing the content of incoming messages, each MR module routing the incoming messages to a predetermined mediation task; and

    ,transmission proxy (TP) modules for forwarding messages to at least one of said LPP modules, wherein each of the MR, M and TP modules are adapted such that all paths for network traffic therethrough are non-reciprocal; and

    ,a processor that executes an autonomic control plane, said autonomic control plane being separate and distinct from said modules,wherein the network couples network traffic along a unidirectional mediation cycle, in which;

    the LLP module addresses incoming messages to a respective one of said mediator router (MR) modules;

    said addressed one of said mediator router (MR) modules analyzes the content of incoming messages and routes said messages to a predetermined mediator module in dependence upon said analyzed content;

    said predetermined mediator module applies the mediation task to said analyzed messages and directs said mediated messages to a respective one of said TP modules; and

    said TP module that receives said mediated messages forwards said mediated messages to at least one of said LLP modules,wherein the autonomic control plane controls said modules and manages the load across the network wherein managing the load across the network comprises the alteration of the destination of network traffic from an LPP module from a first MR module to a second MR module, the alteration comprising;

    the autonomic control plane calling a SWITCH_MR effector method on the LPP module;

    the LPP module, on receipt of the SWITCH_MR effector method, changing state to a SWITCHOVER state, sending an MR_CHANGE control signal to the first MR module, and sending a NEW_MR control signal to a second MR module;

    the first MR module, on receipt of the MR_CHANGE control signal, forwarding the MR_CHANGE signal to each M module and emitting an MR_CHANGE sensor event to the autonomic control plane for each M module to which the MR_CHANGE control signal has been sent;

    the second MR module, on receipt of the NEW_MR control signal, forwarding the NEW_MR control signal to each M module, wherein the M modules are adapted to buffer content received after the NEW_MR control signal but prior to the MR_CHANGE control signal, thereby ensuring that content is processed in the correct order, each M module sending a sensor event to the autonomic control plane on receipt of the NEW_MR control signal; and

    the autonomic control plane, upon receipt of a sensor event from all M modules for which an MR_CHANGE sensor event has been received from the first MR module, calling an effector method to return the LPP module to a STABLE state.

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