Visible to the public ConForm: In-band Control Plane Formation Protocol to SDN-Based Networks

TitleConForm: In-band Control Plane Formation Protocol to SDN-Based Networks
Publication TypeConference Paper
Year of Publication2020
AuthorsFreitas, M. Silva, Oliveira, R., Molinos, D., Melo, J., Rosa, P. Frosi, Silva, F. de Oliveira
Conference Name2020 International Conference on Information Networking (ICOIN)
Date PublishedJan. 2020
ISBN Number978-1-7281-4199-2
KeywordsBootstrap, bootstrap protocol, clean slate, clean slate architectures, Collaboration, computer network management, data plane, formal specification, Human Behavior, In-Band Control Plane, In-band Control Plane Formation Protocol, inband control plane, IP networks, management plane activities, management plane related activities, Metrics, network startup, Network topology, network topology discovery, OpenFlow-based SDN networks, optical switches, policy-based approach, protocol design, Protocols, pubcrawl, resilience, Resiliency, SDN-based networks, security, Self-establishment, software defined networking, TCPIP, telecommunication network topology, telecommunication traffic, Topology, transport protocols

Although OpenFlow-based SDN networks make it easier to design and test new protocols, when you think of clean slate architectures, their use is quite limited because the parameterization of its flows resides primarily in TCP/IP protocols. Besides, despite the many benefits that SDN offers, some aspects have not yet been adequately addressed, such as management plane activities, network startup, and options for connecting the data plane to the control plane. Based on these issues and limitations, this work presents a bootstrap protocol for SDN-based networks, which allows, beyond the network topology discovery, automatic configuration of an inband control plane. The protocol is designed to act only on layer two, in an autonomous, distributed and deterministic way, with low overhead and has the intent to be the basement for the implementation of other management plane related activities. A formal specification of the protocol is provided. In addition, an analytical model was created to preview the number of required messages to establish the control plane. According to this model, the proposed protocol presents less overhead than similar de-facto protocols used to topology discovery in SDN networks.

Citation Keyfreitas_conform_2020