Document from the year 2016 in the subject Computer Science - Internet, New Technologies, , language: English, abstract: Due to the rapid evolution of Internet as well as services over the Internet, including high bandwidth consuming applications like audio and video streaming, it has become need of the day to enhance the Internet infrastructure for bandwidth efficiency. One of the present day biggest challenges of networks is the audio/video transmission in real time. Developed by the Internet Engineering Task Force, Multiprotocol label Switching (MPLS) allows networks to offer several services on the single network architecture with improved forwarding speed of routers by solving the problem of longest prefix match in IP networks. Internet Protocol datagram encapsulates payload received from above layer and adds to its own header information. Thus each protocol layer adds its own header with the information related to the layer. This is a disadvantage of a bigger packet header size such as IPv4/UDP/RTP header of 40 bytes compared to the payload size which leads to excessive overhead in case of real-time multimedia applications. Bandwidth can be conserved by reducing the amount of redundant IP header transmitted with every packet for the same packet stream through header compression techniques. The header compression mechanisms have several short comings such as a problem that they work on hop-by-hop basis. The packet is compressed by the compressor and decompressed by the decompressor and for header compression to work; these are connected directly not through any intermediate node, not even a layer 3 device such as a router. In addition to this, there is a limit in the number of compressed flows that a router can take. The objective of this book is to propose header compression technology which can be implemented over MPLS and used as a bandwidth conserving technology. This will solve the problems of hop-by-hop compression/decompression as the compression of packets is not hop-by-hop rather the compression is per Label Switched Path (LSP) of MPLS network from ingress to egress Label Switched Routers. This will also handle packet reordering in addition to allowing numerous flows at the same time. The current work in the area, both standardized as well as ongoing research has been discussed in detail and also the problems that are yet to be addressed are examined. This approach also increases the bandwidth efficiency as well as processing scalability with respect to the maximum number of simultaneous flows.

02. 2 Network topologies 744 02. 3 Token ring 747 02. 4 Ethernet 749 02. 5 LAN components 752 02. 6 Cabling standards 762 02. 7 Important networking definitions 769 03 Ethernet 771 03. 1 Introduction 771 03. 2 IEEE standards 772 03. 3 Ethernet-media access control (MAC) layer 773 03. 4 IEEE 802. 2 and Ethernet SNAP 775 03. 5 OSI and the IEEE 802. 3 standard 777 03. 6 Ethernet types 780 03. 7 Twisted-pair hubs 781 03. 8 100 Mbps Ethernet 782 03. 9 Gigabit Ethernet 787 03. 10 Bridges 792 03. 11 ARP 793 03. 12 RARP 797 03. 13 Spanning-Tree Protocol 798 03. 14 Additional 799 03. 15 Network interface card design BOO 03. 16 82559-based Ethernet 804 03. 17 Comparison of fast Ethernet with other technologies 806 04 Network Design, Switches and vLANs 807 04. 1 Introduction 807 04. 2 Network design 807 04. 3 Hierarchical network design 809 04. 4 Switches and switching hubs 814 04. 5 vlANs 818 05 Token Ring 825 05. 1 Introduction 825 05. 2 Operation 825 05. 3 Token Ring-media access control (MAC) 826 05. 4 Token Ring maintenance 828 05. 5 Token Ring multistation access units (MAUs) 829 05. 6 Cabling and connectors 830 05. 7 Repeaters 830 05. 8 Jitter suppression 831 06 FDDI 833 06. 1 Introduction 833 06. 2 Operation 834 06. 3 FOOl layers 834 06. 4 SMT protocol 836 06. 5 Physical connection management 836 06.

The number of worldwide VoIP customers is well over 38 million. Thanks to the popularity of inexpensive, high-quality services, it's projected to increase to nearly 250 million within the next three years. The VoIP Handbook: Applications, Technologies, Reliability, and Security captures the state of the art in VoIP technology and serves as the comprehensive reference on this soon-to-be ubiquitous technology. It provides: A step-by-step methodology to evaluate VoIP performance prior to network implementation An invaluable overview of implementation challenges and several VoIP multipoint conference systems Unparalleled coverage of design and engineering issues such VoIP traffic, QoS requirements, and VoIP flow As this promising technology’s popularity increases, new demands for improved quality, reduced cost, and seamless operation will continue to increase. Edited by preeminent wireless communications experts Ahson and Illyas, the VoIP Handbook guides you to successful deployment.

Das Buch erklärt die grundlegenden Prinzipien paketvermittelter Netzwerke und den Schichtenaufbau der Protokolle. Sie finden hier Erläuterungen zu den vielen Begriffen und Akronymen, denen Sie auf dem Gebiet der modernen IP-Netzwerke begegnen. - behandelt einen Großteil der Probleme, mit denen Netzwerkdesigner und -betreiber konfrontiert werden: Netzwerkarchitektur und -topologie, Netzwerkzugriff, Protokollwahl, Routingprinzipien, Redundanz, Sicherheit, Firewalls, verteilte Anwendungen, Netzwerkdienste, Quality of Service usw. - ist so konzipiert, dass der Leser einzelne Themen unabhängig von den anderen erarbeiten kann - enthält ausführliche Anhänge (einschließlich Glossar) zu Protokollfeldnamen und -formaten sowie zu RFCs (Internetspezifikationen), die sich hervorragend als Nachschlagewerk für den Alltag verwenden lassen

Deploying IPv6 in 3GPP Networks – Evolving Mobile Broadband from 2G to LTE and Beyond A practical guide enabling mobile operators to deploy IPv6 with confidence The most widely used cellular mobile broadband network technology is based on the 3GPP standards. The history and background of the 3GPP technology is in the Global Mobile Service (GSM) technology and the work done in European Telecommunications Standards Institute (ETSI). This primary voice service network has evolved to be the dominant mobile Internet access technology. Deploying IPv6 in 3GPP Networks covers how Internet Protocol version 6 (IPv6) is currently defined in the industry standards for cellular mobile broadband, why and how this route was taken in the technology, and what is the current reality of the deployment. Furthermore, it offers the authors’ views on how some possible IPv6 related advances 3GPP networks may be improved during the coming years. It gives guidance how to implement and deploy IPv6 correctly in the Third Generation Partnership Project (3GPP) mobile broadband environment, and what issues one may face when doing so. The book covers 3GPP technologies from 2G to LTE, and offers some ideas for the future. Key features written by highly respected and experienced authors from the IPv6 / mobile world Provides an explanation of the technical background for some not-so-obvious design choices, what to concentrate on, and what transition strategies should be used by the vendors and the operators Offers a useful reference guide for operators and vendors entering into IPv6 business