Proceedings of the First Asia-Pacific Workshop on Networking 2017
DOI: 10.1145/3106989.3106999
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When Raft Meets SDN

Abstract: In SDN, the logically centralized control plane ("network OS") is often realized via multiple SDN controllers for scalability and reliability. ONOS is such an example, where it employs Raft-a new consensus protocol developed recently-for state replication and consistency among the distributed SDN controllers. The reliance of network OS on consensus protocols to maintain consistent network state introduces an intricate inter-dependency between the network OS and the network under its control, thereby creating n… Show more

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Cited by 22 publications
(2 citation statements)
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“…Prior to allowing for data-store modifications, RAFT elects a leader replica, responsible for committing state ordering updates into the distributed data-store and their replication to followers. If a leader fails, a new leader is elected, resulting in a temporary downtime [34,47]. Only a replica with an up-to-date data-store may become a new leader [20,27].…”
Section: Motivationmentioning
confidence: 99%
See 1 more Smart Citation
“…Prior to allowing for data-store modifications, RAFT elects a leader replica, responsible for committing state ordering updates into the distributed data-store and their replication to followers. If a leader fails, a new leader is elected, resulting in a temporary downtime [34,47]. Only a replica with an up-to-date data-store may become a new leader [20,27].…”
Section: Motivationmentioning
confidence: 99%
“…• Assuming k + 1 disjoint paths between each two controllers, failure of k switches / links must not result in control plane partitioning [14,47].…”
Section: Motivationmentioning
confidence: 99%