An Overview of Operations, Administration, and Maintenance (OAM) Tools

Weingarten, Yaacov; Sprecher, Nurit; Bellagamba, Elisa; Mizrahi, Tal

doi:10.17487/rfc7276

Cited by 23 publications

(28 citation statements)

References 12 publications

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“…Thus, the proposed H-OAM system is by design optimized for the proactive operation mode [5]. This means that the H-OAM tests are performed on a continual basis, and keep-alive messages for continuity check and connectivity verification, as well as performance measurements, are conducted periodically, and faults or performance degradations in connectivity are detected when a certain number of expected protocol messages are not received, or when the performance KPIs are under the defined minimum threshold [5].…”

Section: Design and Implementation Of The Heterogeneous Oam Solutionmentioning

confidence: 99%

“…Based on the above presented measured KPIs and collected status information on physical, data-link, network, and application layers, all fundamental tasks expected from the OAM diagnostics [5] in IoT environment can be achieved. We have demonstrated this with the following: (i) Continuity check of the network path, transport protocol services (e.g., TCP), and web-based applications.…”

Section: Design and Implementation Of The Heterogeneous Oam Solutionmentioning

confidence: 99%

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Application-Driven OAM Framework for Heterogeneous IoT Environments

Sterle

Sedlar

Rugelj

et al. 2016

International Journal of Distributed Sensor Networks

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We present a novel approach for providing a comprehensive operational picture of heterogeneous networks by collecting system information from physical, data-link, network and application layers using extended methods and mechanisms for OAM, which take into account particularities of persistent access heterogeneity and IoT. A heterogeneous OAM (H-OAM) framework is proposed with a toolset for streamlined failure detection and isolation, and automated performance measurement and monitoring. The framework combines extended standardized OAM toolsets for physical and data-link layers with multiple well-defined and recognized IP network layer toolsets, which introduces possibilities for a tactical view of the monitored system and quick root cause analysis with unified interpretation and cross-correlation of horizontal and vertical levels. A practical deployment of an H-OAM system is presented and its use is demonstrated in a live mobile IoT testbed environment where performance is a function of a wide variety of physical layer parameters that need to be tuned and monitored by the operator. Results of two concrete usage scenarios performed in cooperation with two largest Slovenian mobile operators demonstrate how continuity check and connectivity verification, and performance diagnostics are conducted for Web-based IoT applications and network services of a live operational environment.

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Section: Design and Implementation Of The Heterogeneous Oam Solutionmentioning

confidence: 99%

Section: Design and Implementation Of The Heterogeneous Oam Solutionmentioning

confidence: 99%

Application-Driven OAM Framework for Heterogeneous IoT Environments

Sterle

Sedlar

Rugelj

et al. 2016

International Journal of Distributed Sensor Networks

View full text Add to dashboard Cite

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“…This document attempts to broaden the terms defined in [RFC7276] in order to reflect all aspects of an SDN architecture.…”

Section: Terminologymentioning

confidence: 99%

Software-Defined Networking (SDN): Layers and Architecture Terminology

Denazis¹,

Haleplidis²,

Salim³

et al. 2015

145

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Software-Defined Networking (SDN) refers to a new approach for network programmability, that is, the capacity to initialize, control, change, and manage network behavior dynamically via open interfaces. SDN emphasizes the role of software in running networks through the introduction of an abstraction for the data forwarding plane and, by doing so, separates it from the control plane. This separation allows faster innovation cycles at both planes as experience has already shown. However, there is increasing confusion as to what exactly SDN is, what the layer structure is in an SDN architecture, and how layers interface with each other. This document, a product of the IRTF Software-Defined Networking Research Group (SDNRG), addresses these questions and provides a concise reference for the SDN research community based on relevant peerreviewed literature, the RFC series, and relevant documents by other standards organizations.

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“…Operations, administration, and maintenance (OAM) are a toolset for fault detection and isolation and performance measurement . Simple Network Management Protocol (SNMP) is one of the most popular protocols for monitoring networks; however, it has performance limitation because of its polling‐based nature and high processing overhead.…”

Section: Introductionmentioning

confidence: 99%

Real‐time and fine‐grained network monitoring using in‐band network telemetry

et al. 2019

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Summary In the modern era of software‐defined networking (SDN), network monitoring is becoming more important for providing information about a network and helping SDN controllers to make decisions about the network. In‐band Network Telemetry (INT) is a new network monitoring framework that collects packet‐level network information to provide real‐time and fine‐grained network monitoring. In this paper, we present the design of the overall INT management architecture and its two main components: the INT management system and INTCollector. The INT management system controls heterogeneous INT‐capable devices through a common interface. INTCollector is a high‐performance collector for INT data, which uses eXpress Data Path and an event detection mechanism. The evaluation result shows that INTCollector processes telemetry reports 27 times faster than other packet‐level telemetry collectors. We made the implementation as open source, to make researchers who are interested in INT implement their own ideas on top of our work.

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An Overview of Operations, Administration, and Maintenance (OAM) Tools

Cited by 23 publications

References 12 publications

Application-Driven OAM Framework for Heterogeneous IoT Environments

Application-Driven OAM Framework for Heterogeneous IoT Environments

Software-Defined Networking (SDN): Layers and Architecture Terminology

Real‐time and fine‐grained network monitoring using in‐band network telemetry

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