Caching in information centric networking: A survey

Information-Centric Networking (ICN) is a novel networking paradigm that attracts increasing research interests in recent years In-network caching has been viewed as an attractive feature of ICN because it can reduce network traffic, alleviate server bottleneck, and reduce the user access latencies Because of this, the network community has proposed many in-network caching mechanisms that aim at optimizing various performance metrics such as cache hit ratio and cache hit distance In this survey, we present a comprehensive overview of the recently proposed in-network caching mechanisms for ICN For each caching mechanism, we describe it in detail, present examples to illustrate how it works, and analyze its possible benefits and drawbacks We also compare some typical in-network caching mechanisms through extensive simulations and discuss the remaining research challenges

A Survey of Caching Mechanisms in Information-Centric Networking

Information-centric networking (ICN), an alternative to the host-centric model of the current Internet infrastructure, focuses on the distribution and retrieval of content instead of the transfer of information between specific endpoints In order to achieve this, ICN is based on the paradigm of publish-subscribe and the concepts of naming and in-network caching Current approaches to ICN employ caches within networks to minimize the latency of information retrieval Content may be distributed either in caches along the delivery path(s), on-path caching or in any cache within a network, off-path caching While approaches to off-path caching are comparable to traditional approaches for content replication and Web caching, approaches to on-path caching are specific to the ICN area The purpose of this paper is to provide a review of the caching problem in ICN, with a focus on on-path caching To this end, a detailed analysis of the existing caching policies and forwarding mechanisms that complement these policies is given A number of criteria such as the caching model and level of operation and the evaluation parameters used in the evaluation of the existing caching policies are being employed to derive a taxonomy for on-path caching and highlight the trends and evaluation issues in this area A discussion driven by the advantages and disadvantages of the existing caching policies and the challenges and open questions in on-path caching is finally being held

A Survey of Caching Policies and Forwarding Mechanisms in Information-Centric Networking

HTTP has been widely applied for data transfer. However, in networks for IoT, this protocol causes a large overhead. To solve this problem, named based transfer protocols have been discussed. This paper compares the performance of HTTP with that of MQTT, a type of named based transfer protocol. Additionally, the paper proposes enhancements to MQTT for better performance.

Comparison with HTTP and MQTT on required network resources for IoT

Hash-routing has been proposed in the past as a mapping mechanism between object requests and cache clusters within enterprise networks.In this paper, we revisit hash-routing techniques and apply them to Information-Centric Networking (ICN) environments, where network routers have cache space readily available. In particular, we investigate whether hash-routing is a viable and efficient caching approach when applied outside enterprise networks, but within the boundaries of a domain.We design five different hash-routing schemes which efficiently exploit in-network caches without requiring network routers to maintain per-content state information.We evaluate the proposed hash-routing schemes using extensive simulations over real Internet domain topologies and compare them against various on-path caching mechanisms. We show that such schemes can increase cache hits by up to 31% in comparison to on-path caching, with minimal impact on the traffic dynamics of intra-domain links.

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Hash-routing schemes for information centric networking

Information Centric Networking (ICN) has shown possibilities to solve several problems of the Internet. At the same time, some problems need to be tackled in order to advance this promising architecture. In this paper we address two of the problems, namely routing and content caching. For the routing, we introduce the Potential Based Routing (PBR) to achieve several design goals such as availability, adaptability, diversity, and robustness. In addition, we examine the performance of a random caching policy which can be a promising candidate for ICN. The integrated system of both PBR and a caching policy is named the Cache Aware Target idenTification (CATT). Simulation results demonstrate that PBR with replications located on less than 1% of total nodes can achieve a near optimal routing performance (close to the shortest path routing) even though a request message is randomly forwarded.

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CATT: potential based routing with content caching for ICN

CATT : Potential Based Routing with Content Caching for ICN

Information-centric networking (ICN) is a new approach to networking contents rather than devices that hold the contents. It has recently attracted much attention of network research and standardization communities. National and multi-national funded research projects have progressed worldwide. International Telecommunication Union - Telecommunication Standardization Sector (ITU-T) started ICN standardization activities in 2012. In parallel, the standards-oriented research cooperation is progressing in the Information-Centric Networking Research Group (ICNRG) of the Internet Research Task Force (IRTF). All these global efforts have been collectively advancing the novel network architecture of ICN. However, there are very few surveys and discussions on the detailed ICN standardization status. To update the reader with information about the ICN research and standardization related activities, this paper starts with the history of global activities on ICN from 2010, giving references to various projects. It then describes the recent progress in the standardization of ICN component technologies in ITU-T and various documents produced by ICNRG. Lastly, it discusses the future directions for progressing ICN.

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Information-Centric Networking: Research and Standardization Status

The role of the Internet has been changed to a content oriented data sharing network. This new paradigm requires a major transformation of the current Internet architecture, which leads to the birth of the Information Centric Networking (ICN) concept in today's Internet. In this article, we propose an ICN architecture named Cache Aware Target identification (CATT) and introduce the architecture by focusing on two of its major components: routing and content caching. For each component of the CATT, Potential Based Routing (PBR) and topology aware caching policy are proposed respectively, and their cooperated operation is illustrated. Due to the synergy effect of both components, the CATT provides an efficient solution of content dissemination in the ICN environment.

CATT: Cache aware target identification for ICN

Biological systems have evolved themselves to withstand against perturbations so that a characteristic, called robustness, is the most commonly observed feature in all living organisms. To find out the secret of robustness in biological systems, many researchers have investigated the system level structure of biological organizations. One of the known structural features that enable biological systems to be robust is modularity. In this paper we study the correlation between modularity structure and robustness in IP networks. We carry out a simulation study to observe resistibility of different topologies, which have different level of modularity structure, against a perturbation created synthetically. The numerical results show that the quantified modularity seems to be more important measure to understand robustness of IP networks than any other common properties such as clustering coefficient, degree distribution, and average path length.

Suyong Eum

Papers

CATT: potential based routing with content caching for ICN

CATT : Potential Based Routing with Content Caching for ICN

Information-Centric Networking: Research and Standardization Status

CATT: Cache aware target identification for ICN

Toward bio-inspired network robustness - Step 1. Modularity