I have developed a lightweight Deficit Round Robin scheduler for the input arbiter of the NetFPGA router. The design is effective in reducing latency for small packets from one port in the presence of saturating traffic of large packets from another port. The design hides arbitration latency when multiple channels are active and achieves nearly optimal latency for the NetFPGA architecture. The ...

A VLSI implementation of a programmable router scheme for parallel interconnection network architectures is presented in this paper. The router executes routing algorithms in 1.5 clock cycles, this being the fastest approach f o r flexible routers. To further increase throughput, the router operation has been made pipelined, achieving 1 routing decision per cycle. The implementation is based on...

The growing use of clusters in diverse applications, many of which have real-time constraints, requires Quality-of-Service (QoS) support from the underlying cluster interconnect. In this paper, we present an analytical model for a wormhole-switched router with QoS provisioning. In particular, the model captures message blocking due to wormhole switching and bandwidth sharing due to a rate-based...

Energy efficiency is an important criterion in the design of next generation networks for both economic and environmental concerns. This paper presents an energy-efficient router that is able to dynamically adapt its routing capability in response to real-time traffic load, achieving energy proportional routing. The NetFPGA reference router, which operates at one of two frequencies (125 MHz or ...

Attention is called to the analogy between linear optical systems and linear two-port electrical networks. For both, the transformation of a pair of oscillating quantities between input and output is of interest. The mapping of polarization by an optical system and of impedance (admittance) by a two-port network is described by a bilinear transformation. Therefore for each transfer property of ...

INTRODUCTION As the use of the TCP/IP protocol suite expanded during the 1990s in tandem with the growth in the use of the Internet, organizations began to realize a new security threat emerging as their networks were connected to the Internet. As academic, government, and commercial networks were connected to the Internet, they became subject to attack from literally an unlimited number of com...

Received Nov 21, 2017 Revised Jan 29, 2018 Accepted Feb 19, 2018 The Internet itself is a worldwide network connecting millions of computers and less significant networks. Computers communicated by routers. Crucial the role of a router is to our technique of communicating and computing. Routers are situated at gateways, the spaces where two or more networks connect, and are the decisive device ...

Previous bufferless router designs require to drop and retransmit packets or deflect them each time a network channel get conflicted. These approaches, unfortunately, make data packets and even their flits arrive at destinations out-of-order. In this work, we present a new bufferless router architecture that provides in-order packet delivery. The key idea is to utilize pipeline registers at cha...