Path Recovery Algorithm Using Fast-Failover for Software-Defined Networks

Bastos, Ian Vilar; Ferreira, Valdemir Garcia; Muchaluat-Saade, Débora C.; Albuquerque, Célio; Moraes, Igor Monteiro

doi:10.1109/ciot50422.2020.9244292

Cited by 3 publications

(2 citation statements)

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“…the logic of the original PMU1-PDC path c → p. To solve this kind of problem, the VLAN ID is used in [24], and the identifier (not specified) is used in [25], to identify the redirected data flows. For example, after the link (p, q) in Fig.…”

Section: Linkid-based Backup Path Installationmentioning

confidence: 99%

“…Several works have utilized the FF group table to perform dataplane based fast failover [23]- [25]. In [24], the loop-free group table installation methods are proposed for SDN-enabled substation communication network; while in the work [25], the fast failover is based on finding and installing a new path between the two end nodes of the failed link with minimum amount of flow entries. The main drawback of existing works is that they only use the FF group table, but do not optimize the solution, i.e., the FF group table based backup path is not well constructed to guarantee the end-to-end transmission performance.…”

Section: Introductionmentioning

confidence: 99%

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Dataplane-Based Fast Failover in SDN-Enabled Wide Area Measurement System of Smart Grid

Duan

Dinavahi

2023

IEEE Trans. Ind. Inf.

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In the wide area measurement system (WAMS) of smart grid, the real-time monitoring and protection applications have stringent requirements for the end-to-end transmission delays between PMUs and PDC, and fast failover is required to ensure the communication performance after link failures. In this work, the software-defined network (SDN) technology is utilized to enable datapath failover upon a link failure with a global view of the communication network. Then, a novel dataplane based fast failover (DFF) mechanism is proposed to directly re-route the data packet in dataplane without interacting with the SDN controller. Based on the mathematical analysis over the WAMS topology features, the proposed DFF optimizes two procedures of failover: backup path construction, and backup path installation. Using the proposed backup path construction algorithms, the 3-approximate and (1+2ε)-approximate (0 < ε < 1) backup paths can be constructed, theoretically guaranteeing the data transmission delays both during and after failover. Using the proposed LinkID-based FF group table installation method, the conflict of forwarding rules between original and backup paths can be eliminated, while the storage cost is also optimized. The simulation results on six IEEE benchmark test power systems show that the proposed DFF mechanism could achieve lower data transmission delays during and after failover compared to the existing control plane based and dataplane based failover mechanisms.

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Section: Linkid-based Backup Path Installationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%