Implementation of traffic splitting using meter table in software-defined networking

The Journal of Engineering

Eiji Oki¹  Nattapong Kitsuwan¹ 

[1] Department of Computer and Network Engineering, The University of Electro-Communications, Tokyo, Japan

关键词: differentiated services code point numbers;    traffic splitting;    QoS;    network traffic classification;    st;    ard OpenFlow;    packet header;    meter table;    quality of service;    DSCP number;    software-defined networking;   

DOI  :  10.1049/joe.2016.0217

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

An implementation technique for traffic splitting using a meter table of a standard OpenFlow in a software-defined network is proposed. The proposed technique uses different differentiated services code point (DSCP) numbers, which are generally used to classify network traffic for quality of service (QoS) levels, in a packet header to decide an output port for a corresponding route. The meter table is generally designed for a QoS purpose. The OpenFlow standard provides two types of meter band, ‘drop’ and ‘dscp_remark’. The proposed technique adopts the ‘dscp_remark’ type for a splitting traffic purpose, instead of the QoS purpose. The DSCP number of the packet is modified when the packet rate exceeds a pre-defined traffic rate. Packets with different DSCP numbers are sent out to the neighbour switches from their corresponding output ports. The original DSCP number is returned to the packets when they are sending out to the neighbour switches, so that the QoS is not affected.

【 授权许可】

CC BY