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Enablement of route table entries

  • US 7,349,982 B2
  • Filed: 01/12/2004
  • Issued: 03/25/2008
  • Est. Priority Date: 01/12/2004
  • Status: Active Grant
First Claim
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1. A method for modifying the routing of packets in a system where packets are routed among a plurality of nodes in accordance with a route table having a plurality of route table entries and a route table enable mask having a plurality of route table enable mask entries that characterize the enablement of corresponding route table entries, the method comprising:

  • a. receiving a packet from one of the nodes, the packet including an operation code and an update mask;

    b. reading the route table enable mask from a memory location;

    c. generating a new route table enable mask by performing a logical operation on the update mask and the route table enable mask in response to the operation code; and

    d. storing the new route table enable mask in the memory location.

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