Lossless Migrations of Link-State IGPs

Vanbever, Laurent; Vissicchio, Stefano; Pelsser, Cristel; François, Pierre; Bonaventure, Olivier

doi:10.1109/tnet.2012.2190767

Cited by 37 publications

(53 citation statements)

References 31 publications

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“…VII, we discuss related work. Our results generalize and extend previous contributions on safe coexistence of multiple IGP instances (e.g., [12]), hybrid SDN networks (e.g., [7]) and safe reconfigurations (e.g., [4]). …”

Section: Introductionsupporting

confidence: 88%

“…Live reconfigurations are crucial to adapt to network dynamics, ensure high performance under changing traffic conditions, and improve network flexibility and evolvability [4], [17]. A commonly-used reconfiguration framework, called "Ships in the Night" (SITN) [6], [18], [5], [4], is based on running multiple independent control-planes on the same network.…”

Section: B Graceful Reconfigurationsmentioning

confidence: 99%

“…A commonly-used reconfiguration framework, called "Ships in the Night" (SITN) [6], [18], [5], [4], is based on running multiple independent control-planes on the same network. For the sake of simplicity, we now assume the network to run a single control-plane before (and after) the reconfiguration.…”

Section: B Graceful Reconfigurationsmentioning

confidence: 99%

“…Third, coexisting control-planes can help accommodate network dynamics, e.g., failures or traffic shifts. For instance, they can improve fast failure recovery [3], and facilitate disruption-free reconfigurations, to arbitrarily change (e.g., for traffic engineering) the configuration of a given protocol (e.g., a link-state IGP [4]) or to migrate from one protocol to another (e.g., [5], [6]). …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

On the co-existence of distributed and centralized routing control-planes

Vissicchio

Cittadini

Bonaventure

et al. 2015

2015 IEEE Conference on Computer Communications (INFOCOM)

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Abstract-Network operators can and do deploy multiple routing control-planes, e.g., by running different protocols or instances of the same protocol. With the rise of SDN, multiple control-planes are likely to become even more popular, e.g., to enable hybrid SDN or multi-controller deployments. Unfortunately, previous works do not apply to arbitrary combinations of centralized and distributed control-planes.In this paper, we develop a general theory for coexisting control-planes. We provide a novel, exhaustive classification of existing and future control-planes (e.g., OSPF, EIGRP, and OpenFlow) based on fundamental control-plane properties that we identify. Our properties are general enough to study centralized and distributed control-planes under a common framework. We show that multiple uncoordinated control-planes can cause forwarding anomalies whose type solely depends on the identified properties. To show the wide applicability of our framework, we leverage our theoretical insight to (i) provide sufficient conditions to avoid anomalies, (ii) propose configuration guidelines, and (iii) define a provably-safe procedure for reconfigurations from any (combination of) control-planes to any other. Finally, we discuss prominent consequences of our findings on the deployment of new paradigms (notably, SDN) and previous research works.

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Section: Introductionsupporting

confidence: 88%

Section: B Graceful Reconfigurationsmentioning

confidence: 99%

Section: B Graceful Reconfigurationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

On the co-existence of distributed and centralized routing control-planes

Vissicchio

Cittadini

Bonaventure

et al. 2015

2015 IEEE Conference on Computer Communications (INFOCOM)

Self Cite

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“…Two examples are represented by safe network updates and declarative networking. In the first case, safe update techniques tailored to either CN (e.g., [23]) or SDN (e.g., [9]) networks will have to be extended, or new techniques to be proposed. Indeed, while complicating the problem, the presence of paradigm interaction mechanisms may not prevent provably-safe update procedures to be devised [24].…”

Section: Research Challengesmentioning

confidence: 99%

Opportunities and research challenges of hybrid software defined networks

Vissicchio

Vanbever

Bonaventure

2014

SIGCOMM Comput. Commun. Rev.

Self Cite

203

127

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Software Defined Networking (SDN) promises to ease design, operation and management of communication networks. However, SDN comes with its own set of challenges, including incremental deployability, robustness, and scalability. Those challenges make a full SDN deployment difficult in the short-term and possibly inconvenient in the longer-term.In this paper, we explore hybrid SDN models that combine SDN with a more traditional networking approach based on distributed protocols. We show a number of use cases in which hybrid models can mitigate the respective limitations of traditional and SDN approaches, providing incentives to (partially) transition to SDN. Further, we expose the qualitatively diverse tradeoffs that are naturally achieved in hybrid models, making them convenient for different transition strategies and long-term network designs. For those reasons, we argue that hybrid SDN architectures deserve more attention from the scientific community.

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Empirical Evidences in Software-Defined Network Security: A Systematic Literature Review

Alsmadi

Zarour

2016

Studies in Computational Intelligence

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Lossless Migrations of Link-State IGPs

Cited by 37 publications

References 31 publications

On the co-existence of distributed and centralized routing control-planes

On the co-existence of distributed and centralized routing control-planes

Opportunities and research challenges of hybrid software defined networks

Empirical Evidences in Software-Defined Network Security: A Systematic Literature Review

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