Scalable Cache Management for ISP-Operated Content Delivery Services

Tuncer, Daphné; Sourlas, Vasilis; Charalambides, Marinos; Claeys, Maxim; Famaey, Jeroen; Pavlou, George; Turck, Filip De

doi:10.1109/jsac.2016.2577319

Cited by 20 publications

(12 citation statements)

References 35 publications

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“…This fact, together with the pressure that content publishers face with the increasing costs of timely video delivery and mobility support [20], [21] is foreseen to bring ICN closer to deployment [22]. Research on ICN in-network caching has also found applicability in other areas such as Telco CDNs [23] and some aspects of it may find deployment in 5G and the Internet of Things (IoT).…”

Section: Current Practices: Network Difficult To Tame -Bring Content mentioning

confidence: 99%

The troubled journey of QoS: From ATM to content networking, edge-computing and distributed internet governance

Pavlou

Psaras

2018

Computer Communications

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Network Quality of Service (QoS) and the associated user Quality of Experience (QoE) have always been the networking "holy grail" and have been sought after through various different approaches and networking technologies over the last decades. Despite substantial amounts of effort invested in the area, there has been very little actual deployment of mechanisms to guarantee QoS in the Internet. As a result, the Internet is largely operating on a "best effort" basis in terms of QoS. Here, we attempt a historical overview in order to better understand how we got to the point where we are today and consider the evolution of QoS/QoE in the future. As we move towards more demanding networking environments where enormous amounts of data is produced at the edge of the network (e.g., from IoT devices), computation will also need to migrate to the edge in order to guarantee QoS. In turn, we argue that distributed computing at the edge of the network will inevitably require infrastructure decentralisation. That said, trust to the infrastructure provider is more difficult to guarantee and new components need to be incorporated into the Internet landscape in order to be able to support emerging applications, but also achieve acceptable service quality. We start from the first steps of ATM and related IP-based technologies, we consider recent proposals for content-oriented and Information-Centric Net

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Section: Current Practices: Network Difficult To Tame -Bring Content mentioning

confidence: 99%

The troubled journey of QoS: From ATM to content networking, edge-computing and distributed internet governance

Pavlou

Psaras

2018

Computer Communications

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“…In our model, we assume that the request popularity exponent has the same value z at each user, but the ranking/order of the items within the Zipf distribution is different. It is well known that the user demand is characterized by a) the total volume of requests for each item in the network, which defines the global content popularity (GCP), and b) the number of locations where each content is requested, defining the geographic distribution of the interests (GDI) [52] and [53]. Here, despite the fact that we assume a very specific and small area where users are deployed we assume the same model (different ranking/order of the items within the Zipf distribution at each user) to examine the performance of the proposed approach in a more generic scenario, since homogeneous popularity of items among the users would definitely benefit the overall system performance.…”

Section: Evaluation Setup and Metricsmentioning

confidence: 99%

Efficient content delivery through fountain coding in opportunistic information-centric networks

Parisis

Sourlas

Κατσαρός

et al. 2017

Computer Communications

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Opportunistic networks can increase network capacity, support collaborative downloading of content and offload traffic from a cellular to a cellular-assisted, device-to-device network. They can also support communication and content exchange when the cellular infrastructure is under severe stress and when the network is down or inaccessible. Fountain coding has been considered as especially suitable for lossy networks, providing reliable multicast transport without requiring feedback from receivers. It is also ideal for multi-path and multisource communication that fits exceptionally well with opportunistic networks. In this paper, we propose a content-centric approach for disseminating content in opportunistic networks efficiently and reliably. Our approach is based on Information-Centric Networking (ICN) and employs fountain coding. When tied together, ICN and fountain coding provide a comprehensive solution that overcomes significant limitations of existing approaches. Extensive network simulations indicate that our approach is viable. Cache hit ratio can be increased by up to five times, while the overall network traffic load is reduced by up to four times compared to content dissemination on top of the standard Named Data Networking architecture.

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“…Note that 10 6 items is not meant to represent the current Internet content space. Instead, this set consists of the items that an ISP-operated Content Delivery Service [27] can store in its network. We also assume that each content item has the same size to simplify the cache size provisioning in the experiments.…”

Section: Evaluation Setup and Metricsmentioning

confidence: 99%

A native content discovery mechanism for the information-centric networks

Ascigil

Sourlas

Psaras

et al. 2017

Proceedings of the 4th ACM Conference on Information-Centric Networking

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Recent research has considered various approaches for discovering content in the cache-enabled nodes of an Autonomous System (AS) to reduce the costly inter-AS traffic. Such approaches include i) searching content opportunistically (on-path) along the default intra-AS path towards the content origin for limited gain, and ii) actively coordinate nodes when caching content for significantly higher gains, but also higher overhead. In this paper, we try to combine the merits of both worlds by using traditional opportunistic caching mechanisms enhanced with a lightweight content discovery approach. Particularly, a content retrieved through an inter-AS link is cached only once along the intra-AS delivery path to maximize network storage utilization, and ephemeral forwarding state to locate temporarily stored content is established opportunistically at each node along that path during the processing of Data packets. The ephemeral forwarding state either points to the arriving or the destination face of the Data packet depending on whether the content has already been cached along the path or not. The challenge in such an approach is to appropriately use and maintain the ephemeral forwarding state to minimize inter-AS content retrieval, while keeping retrieval latency and overhead at acceptable levels. We propose several forwarding strategies to use and manage ephemeral state and evaluate our mechanism using an ISP topology for various system parameters. Our results indicate that our opportunistic content discovery mechanism can achieve near-optimal performance and significantly reduce inter-AS traffic.

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Scalable Cache Management for ISP-Operated Content Delivery Services

Cited by 20 publications

References 35 publications

The troubled journey of QoS: From ATM to content networking, edge-computing and distributed internet governance

The troubled journey of QoS: From ATM to content networking, edge-computing and distributed internet governance

Efficient content delivery through fountain coding in opportunistic information-centric networks

A native content discovery mechanism for the information-centric networks

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