As network transmission speeds increase, packet streams increasingly uncover fine details of the interior behavior of router hardware and software. This behavior reveals itself as a set of harmonic effects, as interior clocks periodically interrupt packet forwarding, and interior queues periodically empty and fill. We examine this behavior with a Linux-based router employing a variety of gigabi...

Optimal utility-based congestion control is an optimization approach to congestion control problems where the objective is to maximize the aggregate source utility over their transmission rates. It has been used to analyze Internet congestion control schemes. In this paper, we develop a discrete congestion control scheme to manage congestion internal to a cluster-based router. We simulate our p...

Sites with the same priority are gathered in the same group. Communication inside a group is organized in a logical rooted tree structure. The tree’s root is the site that last held the token. This organization is similar to that of Raymond's algorithm. For its external communications, a group resorts to an external supplementary element: a router. This router manages external communications. T...

The rotor-router model, also known as the Propp machine, is a deterministic process analogous to a random walk on a graph. Instead of distributing tokens to randomly chosen neighbors, the rotor-router deterministically serves the neighbors in a fixed order. This paper is concerned with a generalized model, functional-router model. While the rotor-router is an analogy with a random walk consisti...

As a relevant communication structure for integrated circuits, Network-on-Chip (NoC) architecture has attracted a range of research topics. Compared to conventional bus technology, NoC provides higher scalability and enhances the system performance for future System-on-Chip (SoC). Divergently, we presented the packet-switching router design for 2D NoC which supports 2D mesh topology. Despite th...