Rigid fixed-grid wavelength division multiplexing (WDM) optical networks can no longer
keep up with the emerging bandwidth-hungry and highly dynamic services in an efficient …

Paradoxically, with an ever-increasing traffic demand, today transport-network operators
experience a progressive erosion of their margins. The alarms of change are set, and …

Software-defined networking (SDN) enables programmable SDN control and management
functions at a number of layers, allowing applications to control network resources or …

A hybrid software defined networks (SDN) network contains both traditional and SDN
network, which combines the robustness of traditional protocols with the flexibility of SDN …

Software-defined network (SDN)/OpenFlow research and development have attracted the
attention of many researchers and companies. The key idea of an SDN is to split the network …

Software defined networking (SDN) and flexible grid optical transport technology are two key
technologies that allow network operators to customize their infrastructure based on …

The growth of the Internet in terms of number of devices, the number of networks associated
to each device and the mobility of devices and users makes the operation and management …

This chapter discusses the changes in technology option or design to support the elastic
concept in an optical network. Next, it introduces in detail some practical aspects of the …

An optical packet and circuit integrated network (OPCInet) provides both high-speed,
inexpensive services and deterministic-delay, low-data-loss services according to the users' …

Nowadays, most service providers offer their services and support their applications through
federated sets of data centers that need to be interconnected using high-capacity telecom …