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The problems associated with multipath routing in Border Gateway Protocol (BGP) for Autonomous Systems (ASes) can be solved with some model or control systems from the Software Defined Networking (SDN). The SdN controller could be used to solve the inconsistencies in the scalability and latency of the Routing Information Base (RIB) of ASes. Also, a set of modules for Inter-AS routing and Brokering...
The Border Gateway Protocol (BGP) has been deployed more than 25 years ago to cope with Internet scalability. BGP is a path-vector, policy-routing protocol which is used to exchange reachability information among Autonomous Systems (ASes), enabling service providers to express their policies, by means of the attachment of several attributes to network prefixes. On any given Autonomous System (AS),...
Multi-level clustering offers the scalability that is essential to large-scale ad hoc and sensor networks in addition to supporting energy-efficient strategies for gathering data. The optimality of a multi-level network largely depends on two design variables: 1) The number of levels, and 2) The number of nodes operating at each level. We characterize these variables within a multi-hop, multi-level...
MultiProtocol Label Switching (MPLS) have been the basic building block for Layer 2 and Layer 3 Virtual Private Networks (VPNs) for almost 20 years. While MPLS data plane is quite simple, the control plane has become increasingly complex, and therefore costly. The typical Label Switch Router (LSR), implements both forwarding and control plane in the box, which comprises distributed routing protocols...
A Flying Ad-hoc Network (FANET) is a wireless ad-hoc network specifically designed for the communication of Unmanned Aerial Vehicles (UAVs). Multicast routing is one of the vital aspects in wireless ad-hoc networks. Research works have been proposed to tackle the challenges in multicast routing in ad-hoc network environments with multi-hop communication. Nevertheless, the conventional multicast routing...
In this paper, in order to increase the scalability of the communication network, a three-level method of hierarchical coordination routing in multi-area network is proposed, which is based on the principle of goal coordination. The method is based on the decomposition representation of the flow-based routing model and it includes three levels of the calculation hierarchy: at the zero level, the routing...
The network plays a key role in High-Performance Computing (HPC) system efficiency. Unfortunately, current HPC routing solutions are not application-aware, and therefore cannot deal with the sudden HPC traffic bursts and their resulting congestion peaks.To address this problem, we introduce Routing Keys, a scalable routing paradigm for HPC networks that decouples intra- and inter-application flow...
Wireless Sensor Networks (WSN) have gained worldwide attention in recent years, particularly with which has facilitated the development of smart sensors. WSN consists of small nodes with sensing, computation and wireless communication capabilities. In WSN, clustering is used as an effective technique to achieve scalability, self-organization, power saving, channel access, routing etc. Lifetime of...
Multicast forwarding in the context of IP-MPLS networks for services like VPLS has important scalability issues. Alternatives to per-VPLS tree construction based on aggregation of multipoint requests onto shared trees have been studied. Other works have focused on stateless forwarding based on Bloom filters. Both suffer from some type of forwarding anomalies. This paper proposes the combination of...
Current communication systems restrict user affordances in terms of expressiveness and interaction. Complex Event Processing (CEP) have gained much importance to overcome these shortcomings. It allows users to interact with powerful expressiveness when defining logical and temporal patterns of exchanged events. This expressiveness allows cleaning network traffic by eliminating the routing of useless...
While many institutions, whether industrial, academic, or governmental, satisfy their computing needs through public cloud providers, many others still manage their own resources, often as geographically distributed datacenters. Spare capacity from these geographically distributed datacenters could be offered to others, provided there were a mechanism to discover, and then request these resources...
Large-scale applications require a scalable data dissemination service with advanced filtering capabilities. We propose the use of a content-based publish/subscribe system with support for top-k filtering in the context of such applications. We focus on the problem of top-k subscription filtering, where a publication is delivered only to the k highest scoring subscribers. The naive approach to perform...
The rise of the Internet of things (IoT) poses massive scalability issues for location-based services. More particularly, location-aware publish and subscribe services are struggling to scale out the computation of matches between publications and subscriptions that continuously update their location. In this demonstration paper, we propose a novel distributed and horizontally scalable architecture...
Traditional networks rely on aggregate routing and decentralized control to achieve scalability. On the contrary, software-defined networks achieve near optimal network performance and policy-based management through per-flow routing and centralized control, which however face scalability challenge due to (1) limited TCAM and on-die memory for storing the forwarding table and (2) per-flow communication/computation...
The Fast ReRoute flow-based model has been improved, where the node and link protection schemes in the linear form were formulated with the implementation of single path and multipath routing strategies. The use of linear-quadratic optimality criterion was substantiated, and the system hierarchy relations of weight coefficients in the objective function were determined with the aim to ensure maximum...
The OpenFlow-based SDN is widely studied to better network performance through providing flexible routing paths. However, being designed to configure path hop-by-hop, it faces the scalability issue — both the flow table overhead and path setup delay are unacceptable for large-scale networks. In this paper, we propose PACO, a framework based on Source Routing (SR) to address that problem through quickly...
Software-Defined Networking (SDN) is an emerging architecture and offers advantages over traditional network architecture, while there exist some scalability challenges. In this paper, we propose a multicast routing algorithm for SDN with segment routing to serve the bandwidth requirement of a multicast routing request. Our algorithm considers the balance of traffic load for network resource of link...
Bit Indexed Explicit Replication (BIER) is a novel multicast forwarding scheme for IP networks that avoids states in replicating routers by encoding the multicast information into a bit string in the packet header. In addition, the BIER-TE variant encodes the multicast tree in the header and allows for network programmability. We propose the use of maximally redundant trees (MRTs) for 1+1 protection...
Scalability is an important requirement in the development and the operation of applications in a cloud environment. To handling heavy concurrency in the input load, many design-related and operational factors should be considered. The microservice architecture patterns provide better means to increase the scalability than traditional software architecture patterns. However, certain aspects of applications...
We provide a lightweight decentralized publish-subscribe framework for supporting large-scale actor communication on edge networks. Our framework, called Loquat, does not depend on any reliable central nodes (e.g., data centers), provides reliability in the face of massive node failures and network partitioning, and provides scalability as the number of nodes increases. We consider that high reliability,...
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