The myriad of connected devices in today’s households have greatly increased the complexity of home networks. Evolving use cases demand new networking capabilities in the home and call for new approaches to deal with the control requirements and quality of experience expectations of end users. OpenFlow/SDN represents a recent trend in open interfaces to network elements and new control plane ab...

This article describes an approach to the design of control planes for optical crossconnects which leverages existing control plane techniques developed for MPLS traffic engineering. The proposed approach combines recent advances in MPLS traffic engineering control plane constructs with OXC technology to provide a framework for real-time provisioning of optical channels, foster development and ...

ETRI Journal, Volume 23, Number 4, December 2001 ABSTRACT In this letter, we propose a new multicast scheme, named Xcast+, which is an extension of Explicit Multicast (Xcast) for an efficient delivery of multicast packets. The mechanism incorporates the host group model and a new control plane into existing Xcast, and not only does it provide the transparency of traditional multicast schemes t...

Supporting application QoS in wireless environment remains a challenging task due to the inherent constraints of wireless interfaces (resource scarcity, signal quality, etc.). While current standards offer relative QoS through service class differentiation, assured QoS is still a critical requirement for supporting multimedia and real-time applications. In consideration for fairness and bandwid...

Software-defined networking (SDN), and in particular networks based on an OpenFlow control plane, are expected to take significant share in upcoming deployments. Network programmability has emerged as a particularly desirable property for such new deployments, in which logically centralized software will be able to both control and manage operation. This paper focuses on one aspect of network m...

Software-Defined Networking (SDN) is an emerging topic and securing its data and control plane is of great importance. The main goal of malicious SDN applications would be to compromise the SDN controller which is responsible for managing the SDN-based network. In this paper, we discuss two existent mechanisms aiming at protecting aforementioned planes: (i) sandboxing of SDN applications and (i...

Seamless connectivity in wireless access networks is critical for timesensitive applications requiring Quality-of-Service guarantees with bounded data transmission delay. Currently, the latency inherent in the handoff process can preclude the successful delivery of such applications by introducing delays up to several seconds. In this paper, we address this issue by proposing an improvement of ...

We present Tesseract, an experimental system that enables the direct control of a computer network that is under a single administrative domain. Tesseract’s design is based on the 4D architecture, which advocates the decomposition of the network control plane into decision, dissemination, discovery, and data planes. Tesseract provides two primary abstract services to enable direct control: the ...

By introducing programmability, automated verification, and innovative debugging tools, Software-Defined Networks (SDNs) are poised to meet the increasingly stringent dependability requirements of today’s communication networks. However, the design of fault-tolerant SDNs remains an open challenge. This paper considers the design of dependable SDNs through the lenses of self-stabilization— a ver...

With the explosion in the use of the Internet for ebusiness, entertainment, and wireless communication, Internet control and routing infrastructure are facing limitations in terms of the increasing scale. Because the Internet is now mission-critical to many industries, providing high availability (HA) is a major concern. In this paper, we discuss the scaling limitations of the routing and signa...