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Fast service restoration for lost IGMP leave requests

  • US 20040111470A1
  • Filed: 12/06/2002
  • Published: 06/10/2004
  • Est. Priority Date: 12/06/2002
  • Status: Active Grant
First Claim
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1. A method of managing IP multicast connections in a network having a network node and a plurality of end users, said method comprising the steps of (a) receiving, at a network node an IGMP Group Join message from an end-user device serviced by the network;

  • (b) comparing, at the network node, a MAC address, obtained from the Join message, of the end-user device to another MAC address obtained from a previous Join message for which there exists an IP multicast connection to the network node;

    (c) initiating, by the network node responsive to a match resulting from the comparison, a GSQ for the group of the matching previous Join request; and

    (d) terminating, responsive to a result of the GSQ processing indicating that a connection to the group is no longer needed, the connection to the group.

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