Towards automated performance diagnosis in a large IPTV network

Mahimkar, Ajay; Ge, Zihui; Shaikh, Aman; Wang, Jia; Yates, Jennifer; Zhang, Yin; Zhao, Qi

doi:10.1145/1592568.1592596

Cited by 106 publications

(49 citation statements)

References 33 publications

(24 reference statements)

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“…Since the presence of temporal correlations between emitted event times can provide insights into possible functional relationships between the devices that emit them [6], we used standard correlation techniques (see [18], for example) to gain further insights into the dataset. Namely, we assessed the presence of a functional relationship between two devices in terms of whether the Pearson's correlation coefficient between the time series of their respective recorded alert timestamps significantly differed from that expected under the null hypothesis that they were independent.…”

Section: Analysis Of Temporal Correlationsmentioning

confidence: 99%

Network events in a large commercial network: What can we learn?

Messager

Parisis

Harper³

et al. 2018

NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium

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Abstract-ISP and commercial networks are complex and thus difficult to characterise and manage. Network operators rely on a continuous flow of event log messages to identify and handle service outages. However, there is little published information about such events and how they are typically exploited. In this paper, we describe in as much detail as possible the event logs and network topology of a major commercial network. Through analysing the network topology, textual information of events and time of events, we highlight opportunities and challenges brought by such data. In particular, we suggest that the development of methods for inferring functional connectivity could unlock more of the informational value of event log messages and assist network management operators.

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Section: Analysis Of Temporal Correlationsmentioning

confidence: 99%

Network events in a large commercial network: What can we learn?

Messager

Parisis

Harper³

et al. 2018

NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium

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“…Sherlock [4] presents a multi-level inference model that achieves high performance. Giza [19] try to address the performance diagnosis problem in a large IPTV network and NetMedic [13] enables detailed diagnosis in enterprise networks. Due to the ad hoc nature of sensor networks, enterprise network oriented approaches are infeasible for WSNs.…”

Section: Related Workmentioning

confidence: 99%

Self-diagnosis for large scale wireless sensor networks

Liu

Zhao

et al. 2011

2011 Proceedings IEEE INFOCOM

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Abstract-Existing approaches to diagnosing sensor networks are generally sink-based, which rely on actively pulling state information from all sensor nodes so as to conduct centralized analysis. However, the sink-based diagnosis tools incur huge communication overhead to the traffic sensitive sensor networks. Also, due to the unreliable wireless communications, sink often obtains incomplete and sometimes suspicious information, leading to highly inaccurate judgments. Even worse, we observe that it is always more difficult to obtain state information from the problematic or critical regions. To address the above issues, we present the concept of self-diagnosis, which encourages each single sensor to join the fault decision process. We design a series of novel fault detectors through which multiple nodes can cooperate with each other in a diagnosis task. The fault detectors encode the diagnosis process to state transitions. Each sensor can participate in the fault diagnosis by transiting the detector's current state to a new one based on local evidences and then pass the fault detector to other nodes. Having sufficient evidences, the fault detector achieves the Accept state and outputs the final diagnosis report. We examine the performance of our self-diagnosis tool called TinyD2 on a 100 nodes testbed.

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“…This approach can provide great visibility in the network; however, it is usually very costly to deploy, and care should be taken to avoid alterations in the multicast distribution trees. In other scenarios the monitoring elements can capture the ongoing traffic and send it to remote locations that centrally perform sophisticated analysis [11]. This helps reduce deployment costs at the expense of increased network traffic.…”

Section: Enhancing Qoe Using Rtcp Feedbackmentioning

confidence: 99%

On the use of RTP for monitoring and fault isolation in IPTV

Begen¹,

Perkins

Ott

2010

IEEE Network

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acket-based multimedia communication has come a long way since its early exploration in the 1970s (for audio over Ethernet) and the 1980s (for audiovisual conferencing over IP), and is nowadays a commodity for millions of users. The most prominent example for the success of IP-based multimedia is IP telephony, where commercial development started in the 1990s, and which has led to the conversion -although operators usually prefer to talk of convergence -of many time-division multiplexing (TDM)-based telecommunication networks into IP networks, from the core to the enterprise and increasingly to the home. With increasing availability of broadband access, the entertainment sector has also started to embrace the idea of running everything over IP, leading to the notion of triple play (Internet access, telephony, and IP television [IPTV]) offered in an integrated fashion by Internet service providers (ISPs). Non-ISP-based offerings have followed the trend with a multitude of web-based multimedia streaming offerings including Internet radio stations, TV broadcasters delivering selected programming, and user-generated content platforms such as YouTube.While the types of services, and the control protocols used to access and interact with them, may differ, the common theme across all services is the delivery of real-time (multi)media contents over a packet-switched network. The Real-Time Transport Protocol (RTP), Internet Engineering Task Force (IETF) Request for Comments (RFC) 3550, 1 was developed to serve this purpose, drawing on the experience of the early experimentation. While RTP's original target was multiparty multimedia conferencing in multicast networks, its design was carefully crafted for much broader applicability -RTP accommodates point-to-point IP telephony on one end of the scale, and broadcasting to millions of users on the other. The broad acceptance and deployment of IP telephony solutions using RTP prove the former. In this article we make the case for the latter.After an overview of the IPTV landscape, we review the basics of RTP, introduce the technical concepts of RTP specifically applied to IPTV, and present a new architecture for robust IPTV distribution. We then apply the reporting mechanisms offered by RTP to realize monitoring and fault tolerance, and subsequently show how service providers can use these mechanisms for troubleshooting and increasing customer satisfaction. We conclude with a brief summary and point to future developments. Our contribution is in outlining a multicast RTP-based IPTV distribution architecture that integrates scalable RTP Control Protocol (RTCP) feedback, feedback aggregation and fault isolation, rapid acquisition, and media repair to enhance subscriber quality of experience (QoE). IPTV in the Real WorldIPTV is the delivery of entertainment-quality video over an IP network. However, it is not just about how video content is carried in the network and delivered to consumers. The vision behind IPTV encompasses more than this: it extends the reachability of content...

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Towards automated performance diagnosis in a large IPTV network

Cited by 106 publications

References 33 publications

Network events in a large commercial network: What can we learn?

Network events in a large commercial network: What can we learn?

Self-diagnosis for large scale wireless sensor networks

On the use of RTP for monitoring and fault isolation in IPTV

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