Orchestrating massively distributed CDNs

Jiang, Wenjie; Ioannidis, Stratis; Massoulié, Laurent; Picconi, Fabio

doi:10.1145/2413176.2413193

Cited by 56 publications

(37 citation statements)

References 21 publications

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“…Carefully designed Content Delivery Networks (CDNs) are used to effectively serve large populations of geographically distributed users [16], [24], and operators are partnering directly with major content providers such as Google (e.g., YouTube videos) and Netflix to help reduce their access bandwidth usage, with the help of content provider driven caches within the operators' networks. Within the content delivery context, researchers have recently explored the best approaches to reduce the delivery costs through careful cache placement [25], networks of caches [19], cooperative cache management [7], and cache replica selection [9], for example.…”

Section: Related Workmentioning

confidence: 99%

Ephemeral Content Popularity at the Edge and Implications for On-Demand Caching

Carlsson

Eager

2017

IEEE Trans. Parallel Distrib. Syst.

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Abstract-The ephemeral content popularity seen with many content delivery applications can make indiscriminate on-demand caching in edge networks highly inefficient, since many of the content items that are added to the cache will not be requested again from that network. In this paper, we address the problem of designing and evaluating more selective edge-network caching policies. The need for such policies is demonstrated through an analysis of a dataset recording YouTube video requests from users on an edge network over a 20-month period. We then develop a novel workload modelling approach for such applications and apply it to study the performance of alternative edge caching policies, including indiscriminate caching and cache on k th request for different k. The latter policies are found able to greatly reduce the fraction of the requested items that are inserted into the cache, at the cost of only modest increases in cache miss rate. Finally, we quantify and explore the potential room for improvement from use of other possible predictors of further requests. We find that although room for substantial improvement exists when comparing performance to that of a perfect "oracle" policy, such improvements are unlikely to be achievable in practice.

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Section: Related Workmentioning

confidence: 99%

Ephemeral Content Popularity at the Edge and Implications for On-Demand Caching

Carlsson

Eager

2017

IEEE Trans. Parallel Distrib. Syst.

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“…From a general perspective, Mor et al , presented a broad classification of energy‐efficient techniques for WMN, summarising the main features of the considered classes, including design/planning techniques, load‐balancing approaches, traffic consolidation, energy‐aware traffic handover, GW selection, topology control and energy‐aware routing. Jiang et al , analyse a content delivery architecture based on geographically dispersed groups of ‘last‐mile’ CDN servers, for example set‐top boxes located within users' homes. The analysis was focused on the design of scalable and adaptive mechanisms to jointly manage content replication and request routing within the presented architecture.…”

Section: Related Workmentioning

confidence: 99%

Energy efficiency and traffic offloading in wireless mesh networks with delay bounds

Garroppo

Gendron

Nencioni

et al. 2014

Int J Communication

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In this paper, we study a wireless access network based on the Institute of Electrical and Electronics Engineers 802.11 standard and enriched with features such as caching and mesh networking. This system is analysed in terms of energy efficiency and traffic offloading, two objectives that are somewhat in contrast but both relevant to network and service providers as they directly impact the operational cost. In addition, QoS is also accounted for in the form of guaranteed bandwidth and bounded delay. To this aim, we developed a mathematical model of the system and solved it to optimality by means of integer linear programming. We can thus show how much can be saved both in terms of energy and traffic, also considering various tradeoff points among the two contrasting objectives. As a last step, we provide an investigation on the benefits of adding traffic aggregation features to the mathematical model

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“…The Internet structure is highly important for network accountability [4], multihoming [2], routing security [32], traffic delivery economics [10,11], and various problems in content delivery via overlay systems [14,26,36,38,40,47,50,63,67]. By clarifying the Internet structure, our study of remote peering enables further advances in these and other significant practical domains.…”

Section: Related Workmentioning

confidence: 99%

Remote Peering

Castro

Cardona

Gorinsky

et al. 2014

Proceedings of the 10th ACM International on Conference on Emerging Networking Experiments and Technologies

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The trend toward more peering between networks is commonly conflated with the trend of Internet flattening, i.e., reduction in the number of intermediary organizations on Internet paths. Indeed, direct peering interconnections bypass layer-3 transit providers and make the Internet flatter. This paper studies an emerging phenomenon that separates the two trends: we present the first systematic study of remote peering, an interconnection where remote networks peer via a layer-2 provider. Our measurements reveal significant presence of remote peering at IXPs (Internet eXchange Points) worldwide. Based on ground truth traffic, we also show that remote peering has a substantial potential to offload transit traffic. Generalizing the empirical results, we analytically derive conditions for economic viability of remote peering versus transit and direct peering. Because remote-peering services are provided on layer 2, our results challenge the traditional reliance on layer-3 topologies in modeling the Internet economic structure. We also discuss broader implications of remote peering for reliability, security, accountability, and other aspects of Internet research.

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Orchestrating massively distributed CDNs

Cited by 56 publications

References 21 publications

Ephemeral Content Popularity at the Edge and Implications for On-Demand Caching

Ephemeral Content Popularity at the Edge and Implications for On-Demand Caching

Energy efficiency and traffic offloading in wireless mesh networks with delay bounds

Remote Peering

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