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The Trafïîc Flow Description (TFD) option is an experimental option of the IP protocol, designed by the Authors, able to assure signaling for QoS purposes. The option is used as a carrier of knowledge about forthcoming traffic. If planning horizons are short enough, this knowledge can be used for dynamic bandwidth allocation. In the paper an analysis of QoS assurance using the TFD option is presented...
The continuous increase in data traffic, heterogeneous access networks, and the diversity in the Quality of Service (QoS) requirements of the applications is expected to significantly increase the management complexity of 5G networks. Software Defined Networking provides an effective management architecture enabling more efficient utilization of 5G network resources. In this paper, a novel failure...
It is necessary to monitor the usage of network resources in the core network, and give the solution to avoiding network congestion problems. Congestion control method in Huawei's routers and switches is analyzed. Based on it, then a real-time network traffic analysis and quality of service management platform was designed. With four-tier architecture and five functional modules, the platform achieves...
The default cache strategy of Content Centric Networking(CCN) is storing at each Content Router (CR) along the deliver path. It is high cache redundancy which causes the performance of CCN degradation. Hence, finding an efficient caching mechanisms is necessary in CCN. We agree that the single attribute can not to adapt to the complex network environment. the MAC considers hop count or distance, node...
Network packet classification is important network kernel function to enables various network services such as Quality of Service (QoS), security and resource reservation. The OpenFlow protocol is the responsible of the packet classification, it uses a set of rules called ruleset, each rule in that rule set contain a set of matching fields. With the rapid growing of rulesets size and rule fields numbers...
This paper studies enhancement of Multi-Path TCP(MPTCP), which is one of new transport-layer protocols of TCP/IP protocol suites, by IP routing for improvement of Quality of Experience for a Web service (WebQoE). In order to confirm the effect of IP routing on WebQoE, the author performed experiments with subjects. In the experiment, the subjects assess Quality of Experience of two actual Web services...
Mobile Cloud Computing enables resource limited mobile devices to support rich application services. Among three types of cloud services, Infrastructure-as-a-Service (IaaS) clouds provides compute infrastructure for mobile applications on demand. In IaaS-based mobile clouds, latency and bandwidth requirements can considered as critical factors impacting Quality of Service (QoS). Opposed to centralized...
The purpose of this research is to address the issue of enhancing the Quality of Service(QoS) in IP networks, to make it more optimal in a given network of networks using a novel approach. In this approach, QoS is provided to the packet even when the packet crosses its access network into the backbone. It proposes a new design or set of features in the routers which maps and translates the QoS provisioning...
This paper considers the problem of managing and maintaining the quality in communication networks. The significance of the end-to-end quality control on all network layers is shown. The problem of projection of the quality of experience requirements posed by customers on the plane of quality of service metrics is stated. Multilevel quality relationship model corresponding to the current state-of-the-art...
IP - VPN and VPN Service Provider (VSP) customersmaintain the quality for the routing and signaling entities. In thenetwork, VSP is getting viewing by VPN like opaque entity andlimiting meaningful interaction between the VPN and VSP. In thispaper, we will reduce the (Crankback + Miscall) Ratio for theVPN network and increase the VPN Successive Rato. As from theresults session, VPN (Crankback + Miscall)...
Prevailing network technologies separate control and data planes embedded within networking devices. Problems with this are expensive maintenance of closed-technology network devices and the inability to enforce coherent network-wide policies. Software Defined Networks (SDN) solves these problems with logical centralization based on open standards that use existing networking equipment. Quality of...
In the current Internet system, there are many problems using anonymity of the network communication such as personal information leaks and crimes using the Internet system. As the study for solving this problem, there is the study of Policy Based Network Management (PBNM). This is the scheme for managing a whole Local Area Network (LAN) through communication control for every user. As one scheme...
We study the prototype for fine-grained bandwidth allocating managers (FGBAM) which allot communication bandwidth inside heterogeneous software-defined networks (SDN) based on user-defined policies. FGBAM can be beneficial in enabling Quality-of-Service (QoS) during both normal periods and disaster recovery time. FGBAM consists of two parts: the web-based front end and the back end for enforcing bandwidth...
Software defined networks (SDN) is perceived to have specific capabilities for utilization by network infrastructures automatically. The success of OpenFlow protocol is to decouple control plane from data plane completely. However, current SDN still regards the network as a group of devices rather than a holistic resource, and traffic monitoring and control only relies on network states but not including...
With the increasing usage of cloud computing and dependence on a diverse set of distributed applications, users are reliant on consistent outcomes from a shared infrastructure. This drives the need for improved QoS guarantees for heterogeneous communication requirements over shared networks. The Recursive Inter-Network Architecture (RINA) is a fundamental programmable network architecture that provides...
A flow is said to be asymmetrically routed if its packets follow separate paths for forward and reverse directions. Routing asymmetry leads to problems in flow identification, policy enforcement, quota management, traffic shaping etc. in DPI systems. There are two existing approaches to battle routing asymmetry: clustering and state sharing. The latter fails with stateless traffic, while clustering...
Ensuring network interoperability when IEEE 802.11s-based NAN and LTE-based WAN is deployed for Smart Grid (SG) Advanced Metering Infrastructure (AMI) poses significant challenges. Besides the QoS mismatch between networks, LTE tunneling mechanism becomes an issue when forwarding downlink traffic to IEEE 802.11s network since the gateway of these networks is supposed to be the end device in LTE setup...
All real-time services provided by the IP Multimedia Subsystem (IMS) require QoS mechanisms to avoid traffic congestion. Recently, the Software Defined Networking (SDN) paradigm has emerged to enable dynamic network resources, and then a way to perform QoS management. The paper presents an approach to integrate the IMS with the SDN paradigm. The work is motivated by the lack of QoS management of real-time...
All Electric Ships (AESs) are becoming a standard for what it concerns large ships with large power requirements (for both propulsion and onboard loads). At present, the design of shipboard complex power system (namely the IPS — Integrated Power System) is done through a well-proven process, relying on historical data and trial-and-error procedures developed in nearly 30 years of design experience...
Modern telecommunication networks are very complex and they should be able to deal with rapid and unpredictable changes in traffic flows. Virtual Network Topology is used to carry IP traffic over Wavelength-division multiplexing optical network. To use network resources in the most optimal way, there is a need for an algorithm, which will dynamically re-share resources among all devices in the particular...
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