×

Multicast system using client forwarding

  • US 7,719,985 B2
  • Filed: 03/07/2007
  • Issued: 05/18/2010
  • Est. Priority Date: 09/06/2000
  • Status: Active Grant
First Claim
Patent Images

1. A method of adding a new client to a multicast group, the method comprising:

  • receiving a request from the new client to subscribe to the multicast group, wherein the multicast group includes multiple primary clients, a primary client having an associated performance parameter indicating a bandwidth of the primary client, the bandwidth meeting or exceeding a pre-defined threshold bandwidth;

    receiving a performance parameter associated with the new client, the performance parameter indicating the bandwidth of the new client;

    determining whether the new client is to be used as a primary client to forward multicast information to a secondary client, wherein the determination is based at least in part on the bandwidth of the new client, wherein the new client is to be used as a primary client to forward multicast information to a secondary client only if the bandwidth of the new client meets or exceeds the pre-defined threshold bandwidth;

    if it is determined that the new client is to be used as a primary client to forward multicast information to the secondary client, designating the new client as a primary client to be used to forward subsequently sent information, if any, to the secondary client; and

    if it is determined that the new client is not to be used as a primary client to forward multicast information to a secondary client, selecting an existing client to transmit information to the new client based on the network locations of the new client and the existing client and a comparison of a performance parameter of the existing client with performance parameters of other existing clients.

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