SDN-enabled headroom services for high-speed data transfers

Fatma Alali, Xiao Lin, Malathi Veeraraghavan, Naoaki Yamanaka, Weiqiang Sun

研究成果: Conference contribution

1 被引用数 (Scopus)


WAN provider links are often operated at low utilization levels, which leaves large unused capacity (headroom). In this paper, we propose using Software Defined Networking (SDN) controllers to support novel Static Headroom (SH) and Dynamic Headroom (DH) services to allow customers to fill this headroom with Elephant Flows (EFs) without adversely affecting the provider's ability to meet its Best-Effort (BE) service-level agreements, and ability to absorb extra traffic load created during failure recovery periods. Our solution calls for the use of lower-priority service for EFs. We use simulations to compare SH service with BE service, and DH service with SH service. When EFs are sent on BE service, they could cause packet losses in general-purpose IP traffic, especially when the burstiness of the latter is high, while with SH service, this packet loss rate is reduced to 0. While DH service requires the added complexity of a provider SDN controller, the ability to dynamically route EFs on lower-utilized links results in higher average EF throughput. The higher the non-uniformity (from a node-pair perspective) in network traffic, the greater the DH gain factor.

ホスト出版物のタイトル2017 23rd Asia-Pacific Conference on Communications
ホスト出版物のサブタイトルBridging the Metropolitan and the Remote, APCC 2017
出版社Institute of Electrical and Electronics Engineers Inc.
出版ステータスPublished - 2018 2 27
イベント23rd Asia-Pacific Conference on Communications, APCC 2017 - Perth, Australia
継続期間: 2017 12 112017 12 13


名前2017 23rd Asia-Pacific Conference on Communications: Bridging the Metropolitan and the Remote, APCC 2017


Other23rd Asia-Pacific Conference on Communications, APCC 2017

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 信号処理


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