High-availability softwarized networks, while offering tremendous flexibility, typically require
distributed implementations to ensure resilience and scalability. For example, in software …

Adoption of Software-defined Networking (SDN) in critical environments, such as factory
automation, avionics and smart-grid networks, will require in-band control. In such networks …

Software-Defined Networking (SDN) brings new opportunities to improve network
performance of Wide Area Networks (WANs). To enhance the control plane's processing …

Centralized Software Defined Networking (SDN) controllers and Network Management
Systems (NMS) introduce the issue of controller as a single-point of failure (SPOF). The …

SDN provides flexibility, centralized control, and cost-cutting. SDN decouples the main two
functions of a traditional network viz. packet switching and routing. The switch is responsible …

This paper discusses the benefits in the operation of a Raft based SDN controller cluster,
when the election of the cluster leader becomes more or less “fair. Raft is a leader based …

Numerous well-known applications use the Raft consensus algorithm to maintain consistent
replicas of their data on distributed nodes. Raft is based on a dynamically elected leader …

In recent years, Raft has been gradually widely used in many distributed systems (eg, Etcd,
TiKV, PolarFS, etc.) to ensure the distributed consensus because it is effective and easy to …

In a heterogeneous cluster based on the Raft protocol, in order to solve the problem of slow
performance caused by the leader on a slow node, someone proposed ALOR. However, the …

Network operators need to manage the full lifecycle of controller instance clusters to ensure
a high-performance and reliable distributed control plane service for software-defined …