Results 21 - 30 of 577

Timed consistent network updates

by Tal Mizrahi, Efi Saat, Yoram Moses - in SOSR , 2015
"... Network updates such as policy and routing changes occur frequently in Software Defined Networks (SDN). Updates should be performed consistently, preventing temporary dis-ruptions, and should require as little overhead as possible. Scalability is increasingly becoming an essential requirement in SDN ..."
Abstract - Cited by 3 (2 self) - Add to MetaCart
Network updates such as policy and routing changes occur frequently in Software Defined Networks (SDN). Updates should be performed consistently, preventing temporary dis-ruptions, and should require as little overhead as possible. Scalability is increasingly becoming an essential requirement

Hybrid Channel Access Scheduling in Ad Hoc Networks

by Lichun Bao, J.J. Garcia-Luna-Aceves - Proc. IEEE Tenth International Conference on Network Protocols (ICNP , 2002
"... We present the hybrid activation multiple access (HAMA) protocol for ad hoc networks. Unlike previous channel access scheduling protocols that activate either nodes or links only, HAMA is a node-activation channel access protocol that also maximizes the chance of link activations using time- and cod ..."
Abstract - Cited by 61 (4 self) - Add to MetaCart
We present the hybrid activation multiple access (HAMA) protocol for ad hoc networks. Unlike previous channel access scheduling protocols that activate either nodes or links only, HAMA is a node-activation channel access protocol that also maximizes the chance of link activations using time

Load-Sensitive Routing of Long-Lived IP Flows

by Anees Shaikh, Jennifer Rexford, Kang G. Shin - SIGCOMM'99 , 1999
"... Internet service providers face a daunting challenge in provisioning network resources, due to the rapid growth of the Internet and wide fluctuations in the underlying traffic patterns. The ability of dynamic routing to circumvent congested links and improve application performance makes it a valuab ..."
Abstract - Cited by 119 (1 self) - Add to MetaCart
frequency of link-state updates. To address the efficiency and stability challenges of load-sensitive routing, we introduce a new hybrid approach that performs dynamic routing of long-lived flows, while forwarding shortlived flows on static preprovisioned paths. By relating the detection of long-lived flows

A safe, efficient update protocol for OpenFlow networks

by Rick Mcgeer - In HotSDN , 2012
"... We describe a new protocol for update of OpenFlow networks, which has the packet consistency condition of [14] and a weak form of the flow consistency condition of [14]. The protocol conserves switch resources, particularly TCAM space, by ensuring that only a single set of rules is present on a swit ..."
Abstract - Cited by 12 (2 self) - Add to MetaCart
We describe a new protocol for update of OpenFlow networks, which has the packet consistency condition of [14] and a weak form of the flow consistency condition of [14]. The protocol conserves switch resources, particularly TCAM space, by ensuring that only a single set of rules is present on a

Opportunities and Research Challenges of Hybrid Software Defined Networks

by Stefano Vissicchio, Laurent Vanbever, Olivier Bonaventure - In ACM SIGCOMM Computer Communication Review (Editorial Zone , 2014
"... This article is an editorial note submitted to CCR. It has NOT been peer reviewed. The authors take full responsibility for this article’s technical content. Comments can be posted through CCR Online. Software Defined Networking (SDN) promises to ease de-sign, operation and management of communicati ..."
Abstract - Cited by 13 (4 self) - Add to MetaCart
of communication networks. However, SDN comes with its own set of challenges, includ-ing incremental deployability, robustness, and scalability. Those challenges make a full SDN deployment difficult in the short-term and possibly inconvenient in the longer-term. In this paper, we explore hybrid SDN models

Hybnet: Network manager for a hybrid network infrastructure

by Hui Lu - In Proc. ACM/IFIP/USENIX Middleware Industry , 2013
"... The emergence of Software-Defined Networking(SDN) has led to a paradigm shift in network management. SDN has the capability to provide clear and easy management of com-plex operational challenges in large scale networks. However, most of the existing work in SDN network management as-sumes a full de ..."
Abstract - Cited by 4 (1 self) - Add to MetaCart
deployment of SDN enabled network switches. Due to both practical and financial limitation real imple-mentations are likely to transition through a partial deploy-ment. In this paper, we describe our experience in the de-sign of HybNET a framework for automated network man-agement of a hybrid network

SDN Controlled mmWave Massive MIMO Hybrid Precoding for 5G Heterogeneous Mobile Systems

by Na Chen , Songlin Sun , Michel Kadoch , Bo Rong
"... In 5G mobile network, millimeter wave (mmWave) and heterogeneous networks (Hetnets) are significant techniques to sustain coverage and spectral efficiency. In this paper, we utilize the hybrid precoding to overcome hardware constraints on the analogonly beamforming in mmWave systems. Particularly, ..."
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In 5G mobile network, millimeter wave (mmWave) and heterogeneous networks (Hetnets) are significant techniques to sustain coverage and spectral efficiency. In this paper, we utilize the hybrid precoding to overcome hardware constraints on the analogonly beamforming in mmWave systems. Particularly

Telekinesis: Controlling Legacy Switch Routing with OpenFlow in Hybrid Networks

by unknown authors
"... Hybrid networks contain both legacy and programmable network switches and allow operators to reap the benefits of Software-defined networking (SDN) without upgrading the entire network. Previous research shows that adding SDN capabilities to switches at strate-gic places in a network and ensuring th ..."
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Hybrid networks contain both legacy and programmable network switches and allow operators to reap the benefits of Software-defined networking (SDN) without upgrading the entire network. Previous research shows that adding SDN capabilities to switches at strate-gic places in a network and ensuring

Hybrid location-update scheme for mobile networks

by Goo Yeon Lee, Yong Lee, Zygmunt J. Haas - IEEE Trans. Veh. Technol
"... Abstract—In this paper, we propose a hybrid location-update scheme, which combines the time- and movement-based locationupdate approaches. In the proposed scheme, a mobile user updates its location after the following two events have occurred: First, the mobile crossed n cell boundaries, and then, a ..."
Abstract - Cited by 4 (0 self) - Add to MetaCart
are individually applied. Index Terms—Hybrid-location update, mobile networks, movement-based location update, time-base location update. I.

What You Need to Know About SDN Flow Tables

by unknown authors
"... Abstract. SDN deployments rely on switches that come from various vendors and differ in terms of performance and available features. Under-standing these differences and performance characteristics is essential for ensuring successful deployments. In this paper we measure, report, and explain the pe ..."
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Abstract. SDN deployments rely on switches that come from various vendors and differ in terms of performance and available features. Under-standing these differences and performance characteristics is essential for ensuring successful deployments. In this paper we measure, report, and explain
Results 21 - 30 of 577