Subscription to YANG Notifications for Datastore Updates

Voit, Eric; Clemm, Alexander

doi:10.17487/rfc8641

Cited by 15 publications

(7 citation statements)

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“…Several types of data are exposed and consumed, such as network state indicators, network statistics, and critical infrastructure information. Novel protocols such as YANG-PUSH [8] , gRPC [21] and gNMI [22] provide novel features that support system update: a) ability to do bulk retrievals; b) support of multi-tenancy of the monitored device (e.g., through multiple NMS); and c) introduction of highly efficient protocol buffers (protobuf). Apart from periodic telemetry, novel subscription types are defined, with the introduction of conditional telemetry, which refers to the establishment of a push connection and forward targeted telemetry data to a targeted recipient when certain criteria are met.…”

Section: Novel Telemetry Mechanisms In Optical Networkmentioning

confidence: 99%

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Controlling and Monitoring Optical Network Equipment in Optical SDN Networks

Vilalta

Yoshikane

Casellas

et al. 2020

2020 European Conference on Optical Communications (ECOC)

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Section: Novel Telemetry Mechanisms In Optical Networkmentioning

confidence: 99%

“…Several novel protocols have appeared in the last years that claim lower protocol overhead in comparison with Simple Network Management Protocol (SNMP), both in synchronous and asynchronous monitoring. YANG PUSH [8] , gRPC and gNMI [9] are trying to fill this requirement.…”

Section: Introductionmentioning

confidence: 99%

Controlling and Monitoring Optical Network Equipment in Optical SDN Networks

Vilalta

Yoshikane

Casellas

et al. 2020

2020 European Conference on Optical Communications (ECOC)

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“…For instance, the resource name in Figure , which in this case represents the name of a network interface, cannot be modified by an external entity (ie, by a ServiceApp). Moreover, inspired by recent works in IETF, we associate a resource with a new advertise statement (defined as a YANG extension) indicating in which situations the SDNApp advertises the current resource value to the outside world: onchange, advertised any time the value changes; onthreshold, advertised just when the value exceeds a specific threshold; periodic, advertised with a certain frequency, regardless of whether it has changed or not (this is the case of the nat‐session resource shown in Figure ); ondemand, which is never advertised, hence the value must be explicitly requested by the caller. Additionally, each resource can be accessed ondemand (which represents the default setting) regardless the value of advertise.…”

Section: Architecturementioning

confidence: 99%

A model‐based abstraction layer for heterogeneous SDN applications

Castellano

Cerrato

Gharbaoui

et al. 2019

Int J Communication

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Modern controllers for software-defined networks (SDN) enable the execution of arbitrary SDN applications (eg, Network Address Translation (NAT), traffic monitors) that may be exploited by an overarching set of services (eg, application-layer orchestrators) to build even richer services. To this purpose, the above overarching services require a mechanism that allows reading the run-time state and writing the configuration of arbitrary SDN applications, possibly through a uniform API. Unfortunately, most SDN applications are not designed/implemented by taking into account the possibility to be used as part of higher level service workflows (eg, a complex intrusion prevention system that leverages multiple elementary services as individual components), hence they may not provide an adequate interface that would allow overarching services to exploit their features. This paper addresses this problem by proposing an approach to represent the run-time state of arbitrary applications, where data are exported according to high-level model-based structures. Furthermore, the mapping from the high-level data model to the actual data representation within the SDN application is enabled by a suite of algorithms that are generic enough to operate independently of the actual source code of the application, thus avoiding undesired and invasive modifications to existing applications. The paper also presents a software framework and a prototype implementing the proposed approach, characterizes the resulting performance, and discusses pros and cons of the proposed approach. KEYWORDS data modeling, network services, network orchestration, SDN, YANG INTRODUCTIONModern controllers for software-defined networking (SDN), such as open network operating system (ONOS) 1 and open daylight, 2 offer high-level programming abstractions that allow to develop software programs (ie, SDN applications, or SDNApps in this paper) to perform arbitrary network-related tasks going beyond forwarding, routing ,or topology discovery operations, such as application-based traffic monitoring, firewall, NAT, and deep packet inspection. This paradigm enables the creation of programmable network environments able to address the emerging communication requirements (eg, QoS, security) of modern application services (eg, Smart City, Cloud Robotics) operating on top of a distributed and Int J Commun Syst. 2019;32:e3989.wileyonlinelibrary.com/journal/dac

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“…In this regard, ongoing IETF drafts are being produced adapting and extending existing Yang [2] notification mechanisms (e.g. adopting the mechanisms defined in [3] [4]) allowing a network operator to subscribe notifications on a per client basis; configure what parameters to apply filtering and selective collection at the point of origin of the notification, and to request whether notifications are periodic, event-driven, etc.…”

Section: Efficient Monitoring and Data Collection Interfaces And Frammentioning

confidence: 99%

Control plane architectures enabling transport network adaptive and autonomic operation

Casellas

Vilalta

Mayoral

et al. 2017

2017 19th International Conference on Transparent Optical Networks (ICTON)

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The maturity and flexibility of Software Defined Networking principles, favouring centralized control deployments, featured application programming interfaces and the development of a related application ecosystem, has paved the way for the design and implementation of advanced and adapted control plane architectures that specially target and enable efficient and massive monitoring and data collection. In this line, the steady increase in the use of open and standard interfaces and data modelling languages, as well as the wide adoption (in a vendor independent way) of model-driven solutions and a unified approach for data collection and processing facilitates shifting the focus to the actual processing of information, towards autonomic networks and self-* capabilities. Scoped to the control of a flexi-grid optical transport network, and in line with major industry trends, in this paper we cover our requirements for efficient data collection and processing, and we propose and detail a control and management architecture, building on the concepts of front-end and back-end entities, dynamic instantiation of control plane functions within the ETSI NFV framework and the applicability to use cases such as in-operation network planning, on-demand network optimization and parameter tuning.

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Subscription to YANG Notifications for Datastore Updates

Cited by 15 publications

References 0 publications

Controlling and Monitoring Optical Network Equipment in Optical SDN Networks

Controlling and Monitoring Optical Network Equipment in Optical SDN Networks

A model‐based abstraction layer for heterogeneous SDN applications

Control plane architectures enabling transport network adaptive and autonomic operation

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