Weighted routing in hierarchical multi-domain SDN controllers

Jian Jhong Huang, Ying Yu Chen, Chien Chen, Yu Huang Chu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In the common implementation of software defined networking where only one controller is used, tasks required by various applications may overwhelm the controller as the network grows, leading to degradation of the network performance. Some multi-controller architectures have been proposed to remedy such scalability issue. In this paper, we present our design and implementation of a routing application under a hierarchical multi-controller architecture. In this architecture, a network is partitioned into multiple domains, each of which is managed by a dedicated local controller, which is managed by a common global controller. The routing application is executed on the local and global controllers, jointly providing a routing service for each new flow. We provide effective mechanisms to reduce the link state that should be kept by the global controller. We propose a weight function on the links so that a weighted shortest path can be found that avoids the congested links on the network. Experiments results show that our routing application in the hierarchical multi-controller architecture has a great improvement over that of the singlecontroller architecture in terms various performance metrics.

Original languageEnglish
Title of host publication17th Asia-Pacific Network Operations and Management Symposium
Subtitle of host publicationManaging a Very Connected World, APNOMS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages356-359
Number of pages4
ISBN (Electronic)9784885522963
DOIs
StatePublished - 24 Sep 2015
Event17th Asia-Pacific Network Operations and Management Symposium, APNOMS 2015 - Busan, Korea, Republic of
Duration: 19 Aug 201521 Aug 2015

Publication series

Name17th Asia-Pacific Network Operations and Management Symposium: Managing a Very Connected World, APNOMS 2015

Conference

Conference17th Asia-Pacific Network Operations and Management Symposium, APNOMS 2015
CountryKorea, Republic of
CityBusan
Period19/08/1521/08/15

Keywords

  • OpenFlow
  • Routing
  • hierarchical architecture
  • multicontroller
  • software-defined network

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