Overhead reduction scheme for SDN-based Data Center Networks
- Authors
- Pranata, Alif Akbar; Jun, Tae Soo; Kim, Dong Seong
- Issue Date
- Mar-2019
- Publisher
- ELSEVIER
- Keywords
- OpenFlow; Controller; Switch; Overhead reduction; Data Center Networks
- Citation
- COMPUTER STANDARDS & INTERFACES, v.63, pp.1 - 15
- Journal Title
- COMPUTER STANDARDS & INTERFACES
- Volume
- 63
- Start Page
- 1
- End Page
- 15
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/190
- DOI
- 10.1016/j.csi.2018.11.001
- ISSN
- 0920-5489
- Abstract
- This paper proposes a framework on controller and switches to reduce overhead of controller-switch communication for SDN-based Data Center Networks (DCN). The proposal focuses on OpenFlow (OF), a well-known, sophisticated protocol for SDN, to reduce the number of control messages, consisting of both PACKET_IN and PACKET OUT messages handled by the OF controller during rule installation on OF switches' flow tables. The controller receives the first packet of a flow for forwarding path determination and selectively chooses switches for rule installation. Moreover, to ensure lower loads for the controller to handle, the proposed framework adds an out-of-band controller and avoids a hybrid architecture. Extensive simulation shows significant results on reduced controller workload. The performance provides a mutual trade-off by considerably improving rule matching rate in the presence of slightly enhanced number of flow entries, conserving resources on both OF controller and OF switches for SDN-based DCN operation. As a consequence, network latency is reduced while throughput is enhanced, which offers a great promise in the future deployment of DCN.
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Collections - School of Electronic Engineering > 1. Journal Articles
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