Application-layer multicast (ALM) protocols differ in, among other aspects, the topology of the underlying overlay network (e.g., tree, mesh or ring). Therefore, comparing the performance of ALM overlay networks is an important step towards assessing the inherent advantages and/or limitations of each overlay network topology. In particular, ring-based ALM overlay networks have the advantages of...

Service specific overlays are overlay networks build and setup for a single service. Since different services need different types of overlays, the setup process is pretty different. Current approaches normally allow a customer to send in an overlay specification into the overlay provisioning system (mainly centralized). In our approach, we use pattern-based management in order to run the proce...

This paper presents a control mechanism in SON(Service Overlay Network) architecture to provide delay guarantees of different aggregate traffics over IP network. In addition to the bandwidth provision problem of aggregate-traffic in service overlay network, queuing delay in the service gateway is another critical QoS parameter, and diverse multimedia flows have different delay requirements. To ...

In overlay networks consisting of underlying physical nodes and links, data files are transferred by overlay routing managed at application level. The end-to-end filetransfer delay depends on both logical and physical topologies resulting from overlay routing. In this paper, we focus on six types of four-terminal four-router physical network, and investigate the impact of topology inconsistency...

The FPGA overlay architectures have been mainly proposed to improve design productivity, circuit portability and system debugging. In this paper, we address the use of overlay architectures for building fault tolerant SRAM-based FPGA systems and discuss the main features and design challenges of a reliability-aware overlay architecture. Keywords— FPGAs; Overlay architectures; Reliability; Fault...

In peer-to-peer (P2P) overlay networks, the mechanism of a peer randomly joining and leaving a network, causes a topology mismatch between the overlay and the underlying physical topology. This causes a large volume of redundant traffic in the underlying physical network as well as an extra delay in message delivery in the overlay network. Topology mismatch occurs because overlay networks are n...

In research of overlay networks, simulator takes a very important role. However, popular simulators, such as ns and PlanetLab can’t meet the scale and performance requirement of overlay research. Although it is necessary for overlay researchers to observe activities of million nodes, current simulators can not give such simulation result. To improve the overlay network research efficiency, we d...

Distributed systems desire to construct a random overlay graph for robustness, efficient information dissemination and load balancing. A random walk-based overlay construction is a promising alternative to generate an ideal random scale free overlay in distributed systems. However, a simple random walk-based overlay construction can be affected by node churn. Especially, the number of edges inc...

Peer-to-peer networks can be divided into structured and unstructured based on their overlay topologies. In reality, unstructured p2p networks with superpeers have proved their capacities to support millions of users simultaneously. However, applications deployed on this kind of overlay networks, such as file-sharing, require flooding or gossip-based message routing, which puts more overhead on...

In peer-to-peer (P2P) networks it is a central problem to maintain a so called overlay network with certain desired properties. An overlay network is defined by logical connections (i.e., the ”who knows whom” relation) between peers over an underlying physical network. If node i is connected to node j in an overlay network, it means that node i knows the address of j and so it can send messages...