US 2014/0112150 A1 · METHOD FOR PROVIDING QUALITY OF SERVICE IN SOFTWARE-DEFINED NETWORKING BASED NETWORK AND APPARATUS USING THE SAME

Abstract

Disclosed is a Quality of Service (QoS) providing method and apparatus in a software-defined networking (SDN) based network, the QoS providing method including receiving a first packet of a predetermined flow, searching for forwarding information corresponding to the packet and QoS rule information corresponding to the packet in a forwarding table and a QoS rule table, respectively, transmitting the packet to a controller if the forwarding information and the QoS rule information do not exist in the forwarding table and the QoS rule table, and generating a flow entry corresponding to the packet in a flow learning table based on forwarding information and QoS rule information that are received from the controller, thereby efficiently providing QoS.

Claims15

Dependent claims

A method of providing QoS by a node in a network, the method comprising:

receiving a first packet of a predetermined flow;
searching for forwarding information corresponding to the packet and Quality of Service (QoS) rule information corresponding to the packet in a forwarding table and a QoS rule table, respectively;
transmitting the packet to a controller if the forwarding information and the QoS rule information do not exist in the forwarding table and the QoS rule table;
and
generating a flow entry corresponding to the packet in a flow learning table based on forwarding information and QoS rule information that are received from the controller.

2 more elements

A method of providing QoS by a node in a network, the method comprising:

searching for flow information corresponding to a received packet in a flow learning table;
searching for, if the flow information does not exist in the flow learning table, forwarding information corresponding to the packet and QoS rule information corresponding to the packet in a forwarding table and a QoS rule table, respectively;
obtaining, if at least one piece of information of the forwarding information and the QoS rule information does not exist in the forwarding table and the QoS rule table, the at least one piece of information from a controller;
and
allowing the flow learning table to be subject to learning using at least one of information obtained from at least one of the forwarding table and the QoS rule table and information obtained from the controller.

2 more elements

An apparatus for providing QoS, the apparatus comprising:

a storage unit including a forwarding table including forwarding information of a packet, a QoS rule table including QoS rule information that is applied to the packet, and a flow learning table that is subject to learning based on the forwarding information and the QoS rule information;
and
a packet processing unit configured to perform forwarding on an incoming packet and apply QoS to the incoming packet, based on information stored in the storage unit.

Dependencies are inferred from the claim text.

Method for providing quality of service in software-defined networking based network and apparatus using the same

Life of this patent

Method for providing quality of service in software-defined networking based network and apparatus using the same

Life of this patent

Abstract

Claims15