Distributed Software Defined Network Architecture

The present disclosure is a decentralized Software Defined Network (dSDN) which runs individual dSDN controllers at each router in the network, disseminating network state via an inter-router communication protocol. In some examples, the dSDN is an underlay and is coexistant with an out-of-band soft...

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Bibliographic Details
Main Authors Mudigonda, Jayaram, Narayanan, Ashok, Krentsel, Alexander, Shakir, Robert, Ratnasamy, Sylvia
Format Patent
LanguageEnglish
Published 15.08.2024
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The present disclosure is a decentralized Software Defined Network (dSDN) which runs individual dSDN controllers at each router in the network, disseminating network state via an inter-router communication protocol. In some examples, the dSDN is an underlay and is coexistant with an out-of-band software defined network (SDN) control plane, thus achieving a unified architecture that applies across both overlay and underlay. In both the overlay and the underlay, path computation is based on global state, such as a complete view of a network connectivity graph and traffic demands. An end-to-end path that a packet takes may be determined by a localized computation that is run at a single node, such as an SDN controller in the overlay or a head-end router in the dSDN underlay. The network may be partitioned into domains and the same approach may be applied within and across domains.
Bibliography:Application Number: US202318109654