Design and test of a software defined hybrid network architecture

Abstract

Circuit and packet switching convergence offers significant advantages in core networks to exploit their complementary characteristics in terms of flexibility, scalability and quality of service. This paper considers the possibility of unifying the two different types of transport using the Software Defined Networking (SDN) approach. The proposed architecture applies a modular design to the whole set of node functions, representing the key enabler for a fully programmable network implementation. This paper also proposes a possible extension to the basic concept of flow defined by the current OpenFlow standard to properly support a hybrid network. A set of experiments are performed to assess the main functionality and the performance of the hybrid node where packet and circuit switching are assumed to be configured through the OpenFlow protocol in a fully automated way.

Software Defined Optical Networks (SDONs): A Comprehensive Survey

“…Cerroni et al [187] have further developed the concept of unifying circuit-and packet-switching networks with Open-Flow, which was initiated by Das et al [182], [183]. The unification is accomplished with SDN on the network layer and can be used in core networks.…”

“…The unification is accomplished with SDN on the network layer and can be used in core networks. Specifically, Cerroni et al [187] have described an extension of the OpenFlow flow concept to support hybrid networks. OpenFlow message format extensions to include matching rules and flow entries have also been provided.…”

“…The matching rules can represent different transport functions, such as a channel on which a packet is received in optical circuit-switched WDM networks, time slots in TDM networks, or transport class services (such as guaranteed circuit service or best effort packet service). Cerroni et al [187] have presented a testbed setup and reported performance results for throughput (in bit/s and packets/s) to demonstrate the feasibility of the proposed unified OpenFlow switching network. b) R-LR-UFAN: The Reconfigurable Long-Reach Ultra-Flow Access Network (R-LR-UFAN) [188], [189] provides flexible dual-mode transport service based on either the Internet Protocol (IP) or Optical Flow Switching (OFS).…”

“…III-C2 Converged Pkt-Cir. Sw. [130], [182]- [187] R-LR-UFAN [188]- [190] Flexi-grid [191]- [194] ? Opt.…”

Software-Defined Wireless Networking Opportunities and Challenges for Internet-of-Things: A Review

“…An independent testing of OpenFlow in circuit and packet switching was also conducted. The authors in [34], designed the OpenFlow enabled hybrid network architecture. They extended the OpenFlow table matching rule entry by introducing two additional tuples, i.e., Channel and Transport class for wavelength/timeslot and guaranteed circuit/packet switching respectively.…”