Anatol Badach

University of Applied Sciences Fulda · Department of Applied Informatics

Grundlagen der IP-Netze, klassische Protokolle IPv4, ARP, ICMP, IGMP, TCP, UDP, SCTP und DNS // Support-Protokolle DHCP, NAT, IPsec, TLS und Multipath TCP // Protokolle für Echtzeitkommunikation RTP, RTCP, SIP und SDP // IPv6-Konzept und -Einsatz sowie Support-Protokolle ICMPv6, NDP und DHCPv6 // Konzepte für die Migration zum IPv6-Einsatz: 6to4, 6...

VoIP - Grundlagen, Protokolle, Anwendungen, Migration, Sicherheit

http://files.hanser.de/hanser/docs/20130919_213919144412-77_978-3-446-40487-8_Vorwort.pdf http://update.hanser-fachbuch.de/author/anatol-badach/

Diese Präsentation illustriert die wichtigen Meilensteine der Entwicklung des Internets. Dabei sind die folgenden Schwerpunkte hervorzuheben: • Wichtige Schritte in der Entwicklung des Internets • 1960er Jahre: Packet Switching Networks – einige der ersten Pioniere; Genesis der Begriffe Packet und Packet Switching; 29. October 1969 – ARPANET Birthd...

This Article first explains the original Concept of Digital Twins. For this Purpose, the general logical Architecture of Digital Twins based on the Principles of Human Cognition is presented. Building on this, it will then be shown how Digital Twins can be used successfully. Healthcare is a prime Example for this. In addition, the various Issues th...

This chapter gives an overview of the development of networks for voice communication so far and explains the most important trends. Section 1.1 shows the development from the simple telephone to the intelligent network. Section 1.2 explains the principles of VoIP. Section 1.3 shows the evolution of cellular networks. Section 1.4 explains the conve...

H.323 is an ITU-T standard and represents a framework in which it is specified how the other standards H.225.0 and H.245 as well as special protocols of the TCP/IP protocol family such as RTP and RTCP are to be used for the transmission of real-time media (audio, video) in IP networks. Different types of virtual connections are required to transmit...

This list of abbreviations contains all important abbreviations in the field of VoIP.

This chapter contains answers to the following questions, among others: • Which factors have a negative effect on the VoIP quality? • Which components does the end-to-end delay of the speech signal contain? • What is the impact on packet loss of a jitter compensation buffer? • How is QoS support possible in local networks and in wide area networks?...

WebRTC (Web Real-Time Communication) ist eine richtungsweisende Idee, die dazu dient, multimediale Echtzeitkommunikation mithilfe von Web-Browsern – also eine Web-Echtzeitkommunikation – einfach zu realisieren, ohne dafür zusätzliche komplexe Software-Module installieren zu müssen. Zur Unterstützung von WebRTC können bei Bedarf von einem Webserver...

Das Buch vermittelt die unabdingbaren Informationen, um die Sprachkommunikation in IP-Netzen (z.B. im Internet) besser zu verstehen, diese zu nutzen und neue VoIP-Anwendungen zu konzipieren bzw. auch entwickeln zu können. Das Buch ist so aufgebaut, dass jeweils zunächst die Grundlagen fundiert dargestellt und danach praktische Anwendungen diskutier...

Klassischen Rechnernetzen liegt die logische Client/Server-Architektur zugrunde. Leider erschwert diese Architektur aber die Entwicklung von Systemen, in denen eine spontane Rechnerkommunikation ohne die obligatorische Inanspruchnahme spezieller Server realisierbar ist. Eine spontane Rechnerkommunikation ermöglichende Systeme setzen sog. Peer-to-Pe...

So that a subscriber with a classic telephone in the telephone network can call a subscriber with an IP telephone in an IP network (e.g. in the public Internet), the existing system components and networks for voice communication must be integrated with IP networks. Special VoIP gateways – also called Media Gateways – have to be set up for this. W...

Anatol Badach "Voice over IP, the technology" 5th edition, 2022 Focus of this Book: Basics, Protocols. Applications, Migration, VoIP Security, Emergency Services, Video Telephony

Eine wichtige Funktion von Mobilfunknetzen und terrestrischen Netzen zur Sprachkommunikation ist es, Anrufe in Notsituationen bzw. Unglückfällen zu ermöglichen. Uns allen sind die Notrufnummern 110 und 112 bekannt, denn öffentliche Netze zur Sprachkommunikation bieten Notrufdienste an. Öffentliche VoIP-Systeme müssen dies auch tun. VoIP-basierte No...

This paper first explains the idea and meaning of digital twins. For this purpose, the general logical architecture of digital twins based on the principles of human cognition is presented. Then, based on this, it will be shown how digital twins can be used successfully. The healthcare system serves as an example here. In addition, the migration to...

In this article, the functional requirements for WANs as well as classic system solutions for the provision of WAN services are discussed first. Then, the idea leading to the emergence of SD-WANs is presented and based on this the general logical structure of SD-WANs and their adaptability to new system requirements are explained. The next focus co...

This chapter (written in German) first explains the symbiosis of the IoT with NFV and SDN, which leads to the SD-IoT.The ideas of the IoT and SDN are first briefly explained. Following this the importance of the hierarchical SDN architecture for the implementation of SD-IoT is presented. The main focus of this article is on the presentation of the...

The following illustrations of the Intelligent IoT (IIoT) can be found here: Fig. 1 _ General logical multilayer architecture of IoT; Fig. 2 _ Significance of Cloud Computing, Fog Computing and Edge Computing in IoT; Fig. 3 _ IoT Computing Cooperation Matrix; Fig. 4 _ Logical Model of Human Cognition – i.e. of the Information Processing in the H...

This chapter first explains the general idea and logical architecture of SDN. He then uses an example to illustrate the possibility of using SDN in optical networks - that is, the implementation of SDON. In the following hierarchical SDN architectures are presented and their practical meaning explained. Another focus is the demonstration of the syn...

This article is based on Chapter 6 of our Network Projects book and explains the following topics in a condensed form: How should you proceed in a structured manner in order to record all security vulnerabilities in a network? First, completely and precisely specify these, and then, in order to be able to fix them, document all organizational and t...

This chapter (in German) presents the general concept of the IoT and its possible uses. In particular, the general multi-layer model and the protocol architecture of the IoT are dealt with. The structure and functions of the IoT Access Gateway are briefly discussed. Subsequently, various basic IoT technologies are presented - especially those that...

This chapter (in German) explains the basic ideas and concepts that led to the development of SRv6. First, the multiplane structure of networks with SRv6 will be briefly introduced and the analogy between SRv6 and Multiprotocol Label Switching (MPLS) will be explained. After that discusses the following topics: types of SRv6 domains, operations alo...

This presentation shows the contents of the book "Network Projects" from a special perspective. This is followed by a series of other presentations to show how this book can help with a variety of network projects. Here we first briefly discuss the typical problems and challenges of network projects. In the following presentations, the contents of...

This chapter explains technical basics and capabilities of MPLS. First, the need for connection-oriented communication in IP networks is explained and the idea of the MPLS concept for the integration of routing and switching in IP networks is presented. After that, u.a. the following technical aspects of MPLS are presented: label switching principl...

The main topics of this presentation are: main function of RPL; RPL constraints; RPL terms: objective function, metric and rank; logical structure of LLNs; creation of virtual root nodes; option DODAG-configuration; trickle algorithm

TECHNOLOGY OF IP NETWORKS : This book contains a systematic presentation of the TCP/IP protocol family. It explains the concepts for building IP networks based on different network technologies, especially with regard to virtual networks, as well as mobility support. This issue contains a comprehensive presentation of the technological basics of th...

TECHNOLOGY OF IP NETWORKS Comprehensive information - The complete standard work on the principles of communication in the Internet with over 700 images. Balance of theory and practice - Technical aspects of IP networks are presented in detail and at the same time in a practice-oriented manner. Current and future-oriented - The topics presented de...

This chapter explains the basic ideas and concepts that can be used to set up IIoT (Intelligent Internet of Things). First, the process of thought processes in the human brain, that is, human cognition, is briefly explained. Subsequently, it is shown that human cognition, especially situational thinking, is the main source of the guiding idea of th...

General logical Multilayer Architecture of IoT

This chapter initially explains the origin of the idea of Fog Computing. Afterwards, the concept of Fog Computing will be presented as well as how Fog Computing can be used in the IoT. The use of SDN and NFV in Fog Computing is also presented. Dieses Kapitel erklärt zunächst den Ursprung der Idee von Fog Computing. Anschließend wird das Konzept de...

Logical structure of Fog Nodes: a) General Structure, b) Structure based on Servers with Virtual Machines (VMs)