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Method and apparatus for equalizing load of streaming media server

  • US 7,707,301 B2
  • Filed: 08/15/2002
  • Issued: 04/27/2010
  • Est. Priority Date: 09/06/2001
  • Status: Expired
First Claim
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1. A method of equalizing load on stream media servers, wherein each server has its own private IP address, the method comprises the following steps of:

  • a processing module of client port, comprised in a load equalizer which is disposed before the stream media servers which are trusted by the load equalizer, intercepting a TCP request from a client with a first-class stream rule of a client port and forwarding the TCP request to a main control module in the load equalizer to obtain the address of an actual destination server of the stream media servers, wherein the load equalizer is in charge of a public IP address;

    the main control module sending a Synchronize Number (SYN) packet sent from the client to the destination server;

    a processing module of server port in the load equalizer intercepting a response sent from the destination server with a first-class stream rule of a server port and forwarding the response to the main control module so that the destination server accomplishes a Synchronize Number (SYN) response;

    the main control module creating a second-class stream rule of the client port and a second-class stream rule of the server port respectively according to the address and Synchronize Number (SYN) information of the destination server so as to establish a Real Time Stream Protocol (RTSP) control channel between the client port and the server port;

    the main control module creating a third-class stream rule of the client port and a third-class stream rule of the server port respectively according to information of the control channel so as to establish a data channel between the client port and the server port.

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