×

SIP server architecture fault tolerance and failover

  • US 7,661,027 B2
  • Filed: 10/10/2006
  • Issued: 02/09/2010
  • Est. Priority Date: 10/10/2006
  • Status: Active Grant
First Claim
Patent Images

1. A computer implemented method for providing failover and fault tolerance, comprising:

  • maintaining a replica for storing state information;

    maintaining an engine node that writes and reads state information to and from the replica and uses the state information to process messages;

    periodically polling the replica by the engine node;

    failing to poll by the engine node for a specified period of time; and

    determining that the engine node has failed by the replica upon expiration of the specified period of time;

    wherein the engine node periodically polls the replica for a set of expired timer objects that need to be processed by the engine node.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×