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NETWORK BASED SWITCHOVER TO ORIGINAL CONTENT AFTER AD-INSERTION DEVICE FAILURE

  • US 20090274042A1
  • Filed: 04/30/2008
  • Published: 11/05/2009
  • Est. Priority Date: 04/30/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • joining a first multicast tree for post-inserted content that includes insertion information inserted in the content by an insertion complex in a network;

    joining a second multicast tree for pre-inserted content that does not include the insertion information;

    adding an outgoing interface to the first multicast tree to allow the post-inserted content to be sent to a receiver when it is received;

    adding a non-active interface to the second multicast tree such that the pre-inserted content is not sent to the receiver when it is received;

    determining a failure of content on the first multicast tree; and

    switching the outgoing interface to the second multicast tree such that the pre-inserted content for the second multicast tree is sent to the receiver.

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