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Scalable and dynamic quality of service control

  • US 20050114541A1
  • Filed: 11/12/2003
  • Published: 05/26/2005
  • Est. Priority Date: 11/12/2003
  • Status: Active Grant
First Claim
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1. A system for managing quality of service (QoS) for traffic flows generated by a plurality of hosts separated by one or more networks wherein at least one of the networks is enabled with a set of traffic classes, said system comprising:

  • a services manager, and a middleware module at at least one of the plurality of hosts, wherein said middleware module at the one host receives a QoS request for a traffic flow the host generates and conveys the QoS provisioning request to the services manager upon receiving the QoS request for the traffic flow, and wherein said services manager receives the QoS provisioning request from said middleware module, obtains a DSCP (Differentiated Services Code Point) value for the traffic flow if the networks the traffic flow traverses can support the flow, and if a DSCP value is obtained, conveys the obtained DSCP value for the traffic flow to said middleware module, and wherein said middleware module uses the obtained DSCP value received from the services manager to mark the DSCP field of packets of the traffic flow.

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