Leveraging master-slave OpenFlow controller arrangement to improve control plane resiliency in SD-EONs

Chen, Xiaoliang; Zhao, Bin; Ma, Shoujiang; Chen, Cen; Hu, Daoyun; Zhou, Wenshuang; Zhu, Zuqing

doi:10.1364/oe.23.007550

Cited by 27 publications

(8 citation statements)

References 6 publications

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“…Inspired by the aforementioned studies for packet SDN networks, we have designed and demonstrated a master-slave controller arrangement for SD-EONs in [31]. However, the problem of SCPE, i.e., the controller placement and related control channel planning for control service backup and migration, still has not been addressed and should be investigated carefully to make the solution more practical.…”

Section: Related Workmentioning

confidence: 99%

“…Figure 4 shows the functional design of the OF-C for SCPE. The controller communication module (CCM) deals with the communication between OF-Cs using the controller communication protocol (CCP) developed in [19,31]. The purpose of the CCP is twofold.…”

Section: System Design For Live Control Service Backup and Migratimentioning

confidence: 99%

“…The rest of the modules in Fig. 4 work similarly to those designed in [19,31]. Figures 5 and 6 show the experimental results on cooperative service provisioning with control service backup.…”

Section: System Design For Live Control Service Backup and Migratimentioning

confidence: 99%

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Survivable Control Plane Establishment With Live Control Service Backup and Migration in SD-EONs

Zhao

Chen

Zhu

et al. 2016

J. Opt. Commun. Netw.

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It is known that software-defined elastic optical networks (SD-EONs) are programmable and application-aware. However, due to the centralized network control and management, SD-EONs are vulnerable to the network failures that can affect control plane operations. In this paper, we study the problem of survivable control plane establishment (SCPE), i.e., the controller placement and related communication planning for control service backup and migration to protect the control plane of an SD-EON against single node failures. We first propose a novel mutual backup model to improve the survivability of the control plane with high protection efficiency. An integer linear programming (ILP) model is then formulated to solve the SCPE problem with the objective to minimize both the number of deployed OpenFlow controllers (OF-Cs) and the average control channel latency. We also propose a time-efficient heuristic and use simulations to verify that it can obtain similar solutions to those of the ILP. On top of the theoretical investigation, we design and implement the system to facilitate live control service backup and migration with SCPE in an SD-EON control plane testbed. Experimental results demonstrate that the proposed scheme works efficiently, and compared with that using a single OF-C, our scheme achieves much shorter average provisioning latency in dynamic provisioning.Index Terms-Controller placement; Control plane resiliency; Mutual backup; OpenFlow; Software-defined elastic optical networks (SD-EONs).It is known that by decoupling the control and data planes, software-defined networking (SDN) can make the NC&M in optical networks programmable, adaptive, and application-aware [5]. Specifically, software-defined optical networks (SDONs) can typically be realized by leveraging protocols such as the OpenFlow (OF) [6], the network configuration protocol (NETCONF) with YANG as a data modeling language [7], and the path computation element communication protocol (PCEP) [8]. Here, OF is an open standard protocol that incorporates flow-based switching and centralized controller(s) to facilitate software-defined routing, switching, and network management. Moreover, to support software-defined EONs (SD-EONs), the latest OF specification (version 1.5) [6] has included the extensions for identifying flexible-grid optical flows. Hence, by implementing the OF protocol in the control plane, the network operator can manage the data plane elements (i.e., BV-Ts and BV-WSSs) in an EON intelligently with one or more controllers and realize a SD- EON [5,[9][10][11][12].In the meantime, as an optical fiber can carry over Tb/s traffic, ensuring network survivability is vital in optical networks. Hence, researchers have considered the data plane failures in SD-EONs and proposed a few schemes to improve the data plane resiliency [13][14][15]. Note that in a practical SD-EON, the control plane is definitely not failure-proof without specific considerations on the control plane resiliency. For instance, as it counts on the centralized control...

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Section: Related Workmentioning

confidence: 99%

Section: System Design For Live Control Service Backup and Migratimentioning

confidence: 99%

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Survivable Control Plane Establishment With Live Control Service Backup and Migration in SD-EONs

Zhao

Chen

Zhu

et al. 2016

J. Opt. Commun. Netw.

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“…As well, the controller should maintain the health of the network over time. In implementing a centralized control system for the communication network to support smart infrastructure one needs to establish the reliability of such a system [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Robust software-defined optical networking for the power grid

Rastegarfar

Kilper

2016

2016 International Conference on Computing, Networking and Communications (ICNC)

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The operation of smart power grids will depend on a reliable and flexible communication infrastructure for monitoring and control. Software defined networking (SDN) is emerging as a promising control platform, facilitating network programmability and bandwidth flexibility. We study SDN optical transmission reliability for smart grid applications. We identify the collaboration of the control plane and the data plane in software-defined optical transmission systems as a cyber-physical interdependency where the 'physical' fiber network provides the 'cyber' control network with means to distribute control and signaling messages and in turn is itself operated by these 'cyber' control messages. We examine the robustness of such an interdependent communication system and quantify the advantages of optical layer reconfigurability.

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“…In order to increase scalability and avoid having a single point of failure, several controllers can be distributed throughout the network. Different architectures have been proposed: flat architectures (all controllers at the same level, e.g., primary/back-up solution [4,5]), or hierarchical architectures [6]. A key aspect in the design of reliable SDN networks is the controller placement problem, i.e., how many controllers to use and which location to deploy for each of them.…”

mentioning

confidence: 99%

Design problems towards reliable SDN Networks

Machuca

Vizarreta

Durner

et al. 2018

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF)

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Software Defined Networking offers many advantages such as cost reduction, higher flexibility and network programmability by decoupling the control from the data plane. In order to also increase reliability, several design problems are presented. OCIS codes: (060.4257) Networks, network survivability; (060.4250) Networks Software Defined Networking (SDN) architecture is based on a logically centralized network control, which is separated from the data plane. SDN promises several advantages such as cost reduction, fast provisioning, scalability and load balancing. However, reliability has to be considered in order to guarantee the expected network behavior in case of single and/or multiple failures or attack occurrence. For the remaining of this summary, the term failures will also cover attacks, since they can be considered as targeted and/or intentional failures. The basic SDN architecture [1] consists of three planes as depicted in Fig. 1: (i) the application plane (at the top), (ii) the controller plane (in the middle) and (iii) the data plane (at the bottom) which corresponds to the infrastructure layer (i.e., the interconnected set of network elements able to forward and process data with minimum management and control functionalities). The control layer consists of a set of one or more SDN controllers which is responsible to translate the application requirements into control actions towards the network elements and to inform the applications about any relevant notify from the data plane. The architecture also includes a Management plane in parallel to the three previous planes to provide all the required management functions (e.g., configuring the SDN controller assigned to each network element, configure controller policies).

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Leveraging master-slave OpenFlow controller arrangement to improve control plane resiliency in SD-EONs

Cited by 27 publications

References 6 publications

Survivable Control Plane Establishment With Live Control Service Backup and Migration in SD-EONs

Survivable Control Plane Establishment With Live Control Service Backup and Migration in SD-EONs

Robust software-defined optical networking for the power grid

Design problems towards reliable SDN Networks

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