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Method and system for providing quality-of-service in a data-over-cable system

  • US 6,636,485 B1
  • Filed: 05/14/1998
  • Issued: 10/21/2003
  • Est. Priority Date: 05/14/1998
  • Status: Expired due to Term
First Claim
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1. In a data-over-cable system with a plurality of network devices, a method for providing quality-of-service, the method comprising the following steps:

  • receiving a request on a first network device from a second network device to establish a connection between the second network device and a third network device with a specific quality-of-service, wherein the request for a quality-of-service connection request includes class-of-service and quality-of-service parameters;

    determining on the first network device whether the second network device has enough available bandwidth to establish the quality-of-service connection to the third network device with the specific quality-of-service requested, and if so, subtracting a bandwidth required for the specific quality-of-service requested from the available bandwidth for the second network device;

    assigning a quality-of-service identifier to the required quality-of-service bandwidth;

    storing the assigned quality-of-service identifier on the first network device; and

    sending the assigned quality-of-service identifier to the second network device, wherein the assigned quality-of-service identifier indicates that the second network device has enough bandwidth to establish the connection to the third network device with the specific quality-of-service requested.

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