The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the past couple of years, various information-centric networking (ICN) architectures have been proposed to address the existing problems of the current Internet, each of which from a different perspective. Thus, it becomes critical to deploy and interoperate different ICNs on top of the same physical network infrastructure. This demo presents SD-ICN, a software-defined interoperable deployment...
Efficient content delivery is a constantly evolving challenge on the modern Internet. Reducing the impact of duplicate deliveries of identical content is a key factor in reducing congestion and transit costs for smaller networks. This work leverages SDN concepts and mechanisms in order to transparently store and deliver content from a local cache to the client, thus lightening the load on the WAN...
Resolution — deciding on the appropriate action for a packet, based on a provided table of rules — is an extremely important problem in computer networks. Both routing and filtering require fast resolution. In this paper, we explore the possibility of using XMT, a recently-implemented FPGA-based general parallel machine, to perform resolution. While XMT is still not mature, our early results show...
In this paper, we report our development experience and experimentation studies of two multicast routing schemes for the Internet, namely, PIM-SSM and GCMR. We detail their implementation over the Quagga open source routing suite, as well as their experimentation tests over a large-scale topology that reproduces the Internet characteristics.
Today's socket API requires an application to bind a socket to a transport-layer identifier (e.g., TCP80) and network-layer identifier (e.g., an IP address). These early bindings create significant bottlenecks, reliability issues, and force applications to manage complex lower-layer issues. Many approaches have been proposed to address these problems; however, all of them introduce additional identifiers,...
We consider a simple two-sided market model of an Internet Service (access) Provider (ISP) and Content Provider (CP, over commodity Internet access) on a platform of user-demand. Though the model does not consider provider competition and resource congestion, it does consider advertising revenue, multiple ISP service classes, separate price sensitives for each provider type, and side-payments from...
The significant dependence on cyberspace has indeed brought new risks that often compromise, exploit and damage invaluable data and systems. Thus, the capability to proactively infer malicious activities is of paramount importance. In this context, inferring probing events, which are commonly the first stage of any cyber attack, render a promising tactic to achieve that task. We have been receiving...
With the explosive increase in Internet Contents, the Internet usage is shifting from host-to-host model to content dissemination model, e.g. video content accounts for the majority of Internet traffics. ISPs, content providers and other third parties have already deployed CDNs (content delivery networks) to improve user experience. However, as an ad-hoc solution to the content dissemination problem,...
Information centric networking (ICN) architectures represent a conceptual shift from naming end-hosts in the Internet to naming content directly, and require either significant changes to the existing IP infrastructure or replacing it entirely. We present iDNS (information-centric DNS), an evolutionary path towards deploying ICN at Internet scale based on modifications to the DNS that leave the current...
Online Social Networking (OSN) applications attracted millions of people in few years and are considered as the success story of current Internet applications. However, how they work is unclear for both end-users and researchers, since the developers keep the system architecture secret and use encryption mechanisms. In this paper, we present the main outcomes of our analysis of one of the most well...
Due to the in-network caching capability, Content-Centric Networking (CCN) has emerged as one of the most promising architectures for the diffusion of contents over the Internet. In this paper, we propose an energy-efficient distributed in-network caching scheme for CCN. In the proposed scheme, each content router only needs locally available information to make caching decisions considering both...
Active Queue Management (AQM) design has again come into the spotlight of network operators, vendors and OS developers. This reflects the growing concern and sensitivity about the end-to-end latency perceived by today's Internet users. CoDel and PIE are two AQM mechanisms that have recently been presented and discussed in the IRTF and the IETF as solutions for keeping latency low. To the best of our...
Originally defined in the 90s, multicast is nowadays (re)gaining interest given the increasing popularity of multimedia streaming/content traffic and the explosion of cloud services. In fact, multicast yields bandwidth savings complementing cached content distribution techniques and its potential benefits have been verified by studies several times since then (see e.g. [1]). By multicast routing,...
Network operators desire to obtain accurate evaluations of the traffic matrices of their networks because they are critical inputs to many network functions such as traffic engineering, capacity provisioning and anomaly detection. Under the current Internet architecture, however, it is extremely challenging to precisely measure the traffic between an ingress and egress node pair. In this paper, we...
The deployment and operation of global network architectures can exhibit complex, dynamic behavior and the comprehensive validation of their properties, without actually building and running the systems, can only be achieved with the help of simulations. Packet-level models are not feasible in the Internet scale, but we are still interested in the phenomena that emerge when the systems are run in...
Best Effort service has been the bedrock of the Internet. The simultaneous offering of Managed Service has been proposed as an efficient way to support quality of service, to make some applications feasible and many others more attractive, and give consumers greater choice. However, there is widespread concern that if a network provider is allowed to offer Managed Service and charge a per-use fee,...
We propose a model for network optimization in a non-cooperative game setting with specific reference to the Internet connectivity. We refer to the general model shown in internal report [1], where Autonomous Systems (AS) decisions on link creation and traffic routing are strategically based on realistic interconnection costs, keeping into account the peering/transit dichotomy. Equilibria existence...
The most basic function of an Internet router is to decide, for a given packet, which of its interfaces it will use to forward it to its next hop. To do so, routers maintain a routing table, in which they look up for a prefix of the destination address. The routing table associates an interface of the router to this prefix, and this interface is used to forward the packet. We explore here a new measurement...
Content Delivery Network (CDN) improves large scale data delivery with widely distributed data replicas; But the fundamental goal of IP is to connect two hosts. As a consequence, request routing, which selects the best server to serve the requested data, is introduced to meet the mismatch between CDN and IP. In contrast to IP, Named Data Networking (NDN) makes content the first-class citizen of the...
In the last few years, the research community has witnessed the rapid development of the Information-Centric Networking (ICN) approach aiming at evolving the Internet from today's host based packet delivery towards directly retrieving information in a secure, reliable, scalable, and efficient way. The Internet of Things (IoT) concept envisions scenarios in which “smart objects” can be interconnected...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.