Angebote zu "Networks" (23 Treffer)

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Opportunistic Spectrum Usage and Optimal Contro...
79,90 € *
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The present book deals with how to use the precious wireless resources that are usually wasted by under-utilization of networks. We have been particularly interested to all resources that can be used in an opportunistic fashion using different technologies. We have designed new schemes for better and more efficient use of wireless systems by providing mathematical frameworks. In this sense we focused on cognitive communication networks, where a cellular service provider can reserve a portion of its resources to secondary users or virtual suppliers. Delay tolerant networks are used as an alternative to the significant increase of the traffic load in cellular networks. In areas where the network infrastructure implementation is geographically difficult, the use of ad-hoc networks seems an appropriate solution. Indeed, we have developed a new analytical model of IEEE 802.11e used in this type of network protocol.

Anbieter: Dodax
Stand: 27.02.2020
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Creation of Value with Open Source Software in ...
79,00 € *
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Creating value with open source software is a considerable challenge, but also a great opportunity for any telecommunications company. To help companies in this task, this dissertation extends and instantiates the generic Open Source business roles model proposed by Eurescom: to take into consideration the new emergent technologies in the market such as, IPv6, IMS, VoIP and Ad-hoc Networks, to facilitate the relationships between universities/research centers and private companies, and to be easily explored by technologic-based start-up companies. The extended model presented in this dissertation proposes ten roles and certain relationships between the protagonists of the model and its instantiations. The Open Source Consultant, Quality Certification Entity, Training Provider and Portal Provider were new roles introduced in this extension. Furthermore, the new extended Open Source business roles model is instantiated for three representative and emergent scenarios: unified communications solution, VoIP solution and IMS based services. The Osterwalder methodology is used to describe and assess the application of the framework for each considered scenario.

Anbieter: Dodax
Stand: 27.02.2020
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Juniper Networks Warrior
67,72 € *
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In this practical book, Juniper Networks consulting senior network engineer, Peter Southwick, offers unique first-person field studies on designing, configuring, and troubleshooting new systems that are changing the networking world. Each chapter-long "travelogue" follows a team of Juniper Networks warriors as they solve specific needs with emerging network platform architectures.In these case studies, Southwick and his fellow warriors analyze a client’s particular situation, arrive at an architectural solution, and work through the deployment details. For anyone who operates, installs, designs, or works in IT, this book provides an intimate and entertaining look at what’s changing and why.Among the case studies, you’ll discover how:* A service provider protected customers from malicious traffic with Juniper Networks IDP systems* SRX5800s improved connectivity and security in a data center* Ethernet WAN technology was chosen as a storage solution, rather than a proprietary design on dark fiber* An enterprise severed communications between different departments to comply with government personal credit card standards* Core network and edge devices helped a power company serve local customers and ISPs in the data services market* A hosting company migrated its core, datacenter, edge, and access domains to a state-of-the-art network"In this uniquely written book, you will get a detailed view of life in the data center, the edge, the core, and the office of the customer’s CIO."Steve Fazio, CEO, TorreyPoint

Anbieter: Dodax
Stand: 27.02.2020
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Designing and Implementing IP/MPLS-Based Ethern...
164,00 CHF *
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A guide to designing and implementing VPLS services over an IP/MPLS switched service provider backbone Today's communication providers are looking for convenience, simplicity, and flexible bandwidth across wide area networks-but with the quality of service and control that is critical for business networking applications like video, voice and data. Carrier Ethernet VPN services based on VPLS makes this a reality. Virtual Private LAN Service (VPLS) is a pseudowire (PW) based, multipoint-to-multipoint layer 2 Ethernet VPN service provided by services providers By deploying a VPLS service to customers, the operator can focus on providing high throughput, highly available Ethernet bridging services and leave the layer 3 routing decision up to the customer. Virtual Private LAN Services (VPLS) is quickly becoming the number one choice for many enterprises and service providers to deploy data communication networks. Alcatel-Lucent VPLS solution enables service providers to offer enterprise customers the operational cost benefits of Ethernet with the predictable QoS characteristics of MPLS. Items Covered: Building Converged Service Networks with IP/MPLS VPN Technology IP/MPLS VPN Multi-Service Network Overview Using MPLS Label Switched Paths as Service Transport Tunnels Routing Protocol Traffi c Engineering and CSPF RSVP-TE Protocol MPLS Resiliency -- Secondary LSP MPLS Resiliency -- RSVP-TE LSP Fast Reroute Label Distribution Protocol IP/MPLS VPN Service Routing Architecture Virtual Leased Line Services Virtual Private LAN Service Hierarchical VPLS High Availability in an IP/MPLS VPN Network VLL Service Resiliency VPLS Service Resiliency VPLS BGP Auto-Discovery PBB-VPLS OAM in a VPLS Service Network

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot
Opportunistic Spectrum Usage and Optimal Contro...
130,00 CHF *
ggf. zzgl. Versand

The present book deals with how to use the precious wireless resources that are usually wasted by under-utilization of networks. We have been particularly interested to all resources that can be used in an opportunistic fashion using different technologies. We have designed new schemes for better and more efficient use of wireless systems by providing mathematical frameworks. In this sense we focused on cognitive communication networks, where a cellular service provider can reserve a portion of its resources to secondary users or virtual suppliers. Delay tolerant networks are used as an alternative to the significant increase of the traffic load in cellular networks. In areas where the network infrastructure implementation is geographically difficult, the use of ad-hoc networks seems an appropriate solution. Indeed, we have developed a new analytical model of IEEE 802.11e used in this type of network protocol.

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot
Building Multiservice Transport Networks
126,00 CHF *
ggf. zzgl. Versand

A comprehensive handbook for understanding, designing, and deploying multiservice network architecture and applications Design, deploy, operate, and troubleshoot ONS 15454 applications and services Learn SONET/SDH and DWDM fundamentals Understand Multiservice Provisioning Platform (MSPP) network architectures that support Ethernet, storage area networking, wavelength, and DWDM transport applications Extend your MSPP with Cisco storage solutions A new generation of SONET and DWDM systems providing the functions of multiple network elements in a single platform has emerged. This new platform is called a Multiservice Provisioning Platform (MSPP). MSPPs are a popular solution for building new networks and upgrading existing networks to take advantage of new services and integration of voice and data. Cisco Systems provides an MSPP product, the ONS 15454, for both service provider and enterprise networks. Cisco Systems is the market leader in MSPP technology in North America. More than 1,000 Cisco customers use the ONS 15454 MSPP in their networks and over 40,000 ONS 15454s have shipped, creating a need for accurate, comprehensive technical information for users to understand and maximize the potential of this MSPP product. 'Building Multiservice Transport Networks' will become an indispensable reference for Cisco customers and constituents who are deploying MSPP solutions. 'Building Multiservice Transport Networks 'teaches all facets of MSPP networks in an easy-to-understand manner and from both the service provider and enterprise perspective. It provides the background material necessary for readers to learn key aspects of SONET, SDH, DWDM, Ethernet, andstorage networking, and does so through network diagrams, application examples, design guidelines, and detailed configurations.

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot
Resource Optimization and Security for Cloud Se...
127,00 CHF *
ggf. zzgl. Versand

This book includes a study of trustworthiness, percentile response time, service availability, and authentication in the networks between users and cloud service providers, and at service stations or sites that may be owned by different service providers. The first part of the book contains an analysis of percentile response time, which is one of the most important SLA (service level agreements) metrics. Effective and accurate numerical solutions for the calculation of the percentile response time in single-class and multi-class queueing networks are obtained. Then, the numerical solution is incorporated in a resource allocation problem. Specifically, the authors present an approach for the resource optimization that minimizes the total cost of computer resources required while preserving a given percentile of the response time. In the second part, the approach is extended to consider trustworthiness, service availability, and the percentile of response time in Web services. These QoS metrics are clearly defined and their quantitative analysis provided. The authors then take into account these QoS metrics in a trust-based resource allocation problem in which a set of cloud computing resources is used by a service provider to host a typical Web services application for single-class customer services and multipleclass customer services respectively. Finally, in the third part of the book a thorough performance evaluation of two notable public key cryptography-based authentication techniques; Public-Key Cross Realm Authentication in Kerberos (PKCROSS) and Public Key Utilizing Tickets for Application Servers (PKTAPP, a.k.a. KX.509/KCA); is given, in terms of computational and communication times. The authors then demonstrate their performance difference using queuing networks. PKTAPP has been proposed to address the scalability issue of PKCROSS. However, their in-depth analysis of these two techniques shows that PKTAPP does not perform better than PKCROSS in a large-scale system. Thus, they propose a new public key cryptography-based group authentication technique. The performance analysis demonstrates that the new technique can scale better than PKCORSS and PKTAPP.

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot
Layer 2 VPN Architectures
47,90 CHF *
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A complete guide to understanding, designing, and deploying Layer 2 VPN technologies and pseudowire emulation applications Evaluate market drivers for Layer 2 VPNs Understand the architectural frame-work and choices for Layer 2 VPNs, including AToM and L2TPv3 Grasp the essentials of Layer 2 LAN and WAN technologies Examine the theoretical and operational details of MPLS and LDP as they pertain to AToM Understand the theoretical and operational details of Layer 2 protocols over L2TPv3 in IP networks Learn about Layer 2 VPN bridged and routed interworking and Layer 2 local switching Understand the operation and application of Virtual Private LAN Services (VPLS) Learn about foundation and advanced AToM and L2TPv3 topics through an extensive collection of case studies The historical disconnect between legacy Layer 2 and Layer 3 VPN solutions has forced service providers to build, operate, and maintain separate infrastructures to accommodate various VPN access technologies. This costly proposition, however, is no longer necessary. As part of its new Unified VPN Suite, Cisco Systems® now offers next-generation Layer 2 VPN services like Layer 2 Tunneling Protocol version 3 (L2TPv3) and Any Transport over MPLS (AToM) that enable service providers to offer Frame Relay, ATM, Ethernet, and leased-line services over a common IP/MPLS core network. By unifying multiple network layers and providing an integrated set of software services and management tools over this infrastructure, the Cisco® Layer 2 VPN solution enables established carriers, IP-oriented ISP/CLECs, and large enterprise customers (LECs) to reach a broader set of potential VPN customers and offer truly global VPNs. Layer 2 VPN Architectures is a comprehensive guide to consolidating network infrastructures and extending VPN services. The book opens by discussing Layer 2 VPN applications utilizing both AToM and L2TPv3 protocols and comparing Layer 3 versus Layer 2 provider-provisioned VPNs. In addition to describing the concepts related to Layer 2 VPNs, this book provides an extensive collection of case studies that show you how these technologies and architectures work. The case studies include both AToM and L2TPv3 and reveal real-world service provider and enterprise design problems and solutions with hands-on configuration examples and implementation details. The case studies include all Layer 2 technologies transported using AToM and L2TPv3 pseudowires, including Ethernet, Ethernet VLAN, HDLC, PPP, Frame Relay, ATM AAL5 and ATM cells, and advanced topics relevant to Layer 2 VPN deployment, such as QoS and scalability.

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot
Resource Optimization and Security for Cloud Se...
100,00 CHF *
ggf. zzgl. Versand

This book includes a study of trustworthiness, percentile response time, service availability, and authentication in the networks between users and cloud service providers, and at service stations or sites that may be owned by different service providers. The first part of the book contains an analysis of percentile response time, which is one of the most important SLA (service level agreements) metrics. Effective and accurate numerical solutions for the calculation of the percentile response time in single-class and multi-class queueing networks are obtained. Then, the numerical solution is incorporated in a resource allocation problem. Specifically, the authors present an approach for the resource optimization that minimizes the total cost of computer resources required while preserving a given percentile of the response time. In the second part, the approach is extended to consider trustworthiness, service availability, and the percentile of response time in Web services. These QoS metrics are clearly defined and their quantitative analysis provided. The authors then take into account these QoS metrics in a trust-based resource allocation problem in which a set of cloud computing resources is used by a service provider to host a typical Web services application for single-class customer services and multipleclass customer services respectively. Finally, in the third part of the book a thorough performance evaluation of two notable public key cryptography-based authentication techniques; Public-Key Cross Realm Authentication in Kerberos (PKCROSS) and Public Key Utilizing Tickets for Application Servers (PKTAPP, a.k.a. KX.509/KCA); is given, in terms of computational and communication times. The authors then demonstrate their performance difference using queuing networks. PKTAPP has been proposed to address the scalability issue of PKCROSS. However, their in-depth analysis of these two techniques shows that PKTAPP does not perform better than PKCROSS in a large-scale system. Thus, they propose a new public key cryptography-based group authentication technique. The performance analysis demonstrates that the new technique can scale better than PKCORSS and PKTAPP.

Anbieter: Orell Fuessli CH
Stand: 27.02.2020
Zum Angebot