The NEPHELE data center interconnection network relies on hybrid electro-optical top-of-
rack switches to interconnect servers over multi-wavelength optical rings. The bandwidth of …

Recently, we proposed a multi-ring based optical circuit switching (OCS) network following
the principle of a Clos network. The network can provide connectivity to a large number of …

We propose a novel optical circuit switch architecture offering high reliability and high
capacity. The proposed scheme substantially reduces the annual downtime of the switch …

Optical switching is a promising technology to scale the performance of data centers. We
address two scenarios: hybrid data centers, in which an optical circuit switching network …

Network function services on conventional hybrid data center (DC) architectures such as
HELIOS arehard-wiredanddedicatedto specificnetworkresources. This limits flexibility and …

The growth of data centers (DC) and high-performance computing (HPC) requires higher
bandwidth, but traffic usually occurs between a small number of computing nodes, and the …

Photonics are becoming realistic technologies for implementing interconnection networks in
near future Exascale supercomputer systems. Photonics present key features to design high …

Past few years have witnessed the rapid development of Optical Circuit Switches (OCSes),
which support high and dynamic bandwidth with low cost in the data center network. As a …

A number of new architectures for data centre networks employing reconfigurable, SDN
controlled, all-optical networks have been reported in recent years. In most cases, additional …

In this paper, we consider the performance of TCP when used in data centre networks
(DCNs) featuring optical burst switching (OBS) using two-way reservation. The two-way …