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Method for creating forwarding lists for cluster networking

  • US 6,748,437 B1
  • Filed: 01/10/2000
  • Issued: 06/08/2004
  • Est. Priority Date: 01/10/2000
  • Status: Expired due to Term
First Claim
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1. A method of distributing packets to server nodes in a cluster of nodes, comprising the steps of:

  • receiving a packet at an interface node in the cluster of nodes, the packet including a source address;

    matching the packet with a service object;

    mapping the source address to one bucket of a plurality of buckets in a packet distribution table associated with the service object matched with the packet, the buckets containing identifiers for the server nodes in the cluster of nodes;

    determining if the source address matches a listing in a forwarding list associated with the one bucket to which the source address of the packet is mapped;

    if there is a match with a listing in the forwarding list, sending the packet to a node indicated by the match thereby ensuring that an already established connection is not broken; and

    if there is not a match with a listing in the forwarding list, sending the packet to a node identified by the one bucket to which the source address of the packet is mapped.

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