Data Communications and Network Technologies

This open access book is written according to the examination outline for Huawei HCIA-Routing Switching V2.5 certification, aiming to help readers master the basics of network communications and use Huawei network devices to set up enterprise LANs and WANs, wired networks, and wireless networks, ensure network security for enterprises, and grasp cutting-edge computer network technologies. The content of this book includes: network communication fundamentals, TCP/IP protocol, Huawei VRP operating system, IP addresses and subnetting, static and dynamic routing, Ethernet networking technology, ACL and AAA, network address translation, DHCP server, WLAN, IPv6, WAN PPP and PPPoE protocol, typical networking architecture and design cases of campus networks, SNMP protocol used by network management, operation and maintenance, network time protocol NTP, SND and NFV, programming, and automation. As the world’s leading provider of ICT (information and communication technology) infrastructure and smart terminals, Huawei’s products range from digital data communication, cyber security, wireless technology, data storage, cloud-computing, and smart computing to artificial intelligence

Data Quality Challenges in Net-Work Automation Systems Case Study of a Multinational Financial Services Corporation

With the emerging trends of IPv6 rollout, Bring Your Own Device, virtualization, cloud computing and the Internet of Things, corporations are continuously facing challenges regarding data collection and analysis processes for multiple purposes. These challenges can also be applied to network monitoring practices: available data is used not only to assess network capacity and latency, but to identify possible security breaches and bottlenecks in network performance. This study will focus on assessing the collected network data from a multinational financial services corporation on its quality and attempts to link the concept of network data quality with process automation of network management and monitoring. Information Technology (IT) can be perceived as the lifeblood within the financial services industry, yet within the discussed case study the corporation strives to cut down operational expenditures on IT by 2,5 to 5 percent. This study combines both theoretical and practical approaches by conducting a literature review followed by a case study of abovementioned financial organization. The literature review focuses on (a) the importance of data quality, (b) IP Address Management (IPAM), and (c) network monitoring practices. The case study discusses the implementation of a network automation solution powered by Infoblox hardware and software, which should be capable of scanning all devices in the network along with DHCP lease history while having the convenience of easy IP address management mapping. Their own defined monitoring maturity levels are also taken into consideration. Twelve data quality issues have been identified using the network data management platform during the timeline of the research which potentially hinder the network management lifecycle of monitoring, configuration, and deployment. While network management systems are not designed to identify, document, and repair data quality issues, representing the network’s performance in terms of capability, latency and behavior is dependent on data quality on the dimensions of completeness, timeliness and accuracy. The conclusion of the research is that the newly implemented network automation system has potential to achieve better decision-making for relevant stakeholders, and to eliminate business silos by centralizing network data to one platform, supporting business strategy on an operational, tactical, and strategic level; however, data quality is one of the biggest hurdles to overcome to achieve process automation and ultimately to achieve a passive network appliance monitoring system.siirretty Doriast

Operating System Response to Router Advertisement Packet in IPv6.

With growth of internet IPv4 address will run out soon. So the need of new IP protocol is indispensable. IPv6 with 128-bit address space is developed and maintain the support of IPv4 protocols with some upgrades such as BGP, OSPF and ICMP. ICMP protocol used for error reporting, neighbor discovering and other functions for diagnosis, ICMP version 6 has new types of packets to perform function similar to address resolution protocol ARP called Neighbor Discovery Protocol NDP. NDP is responsible for address auto configuration of nodes and neighbor discovery. It define new packets for the purposes of router solicitation, router advertisement and others discovery functions

Data Communications and Network Technologies

This open access book is written according to the examination outline for Huawei HCIA-Routing Switching V2.5 certification, aiming to help readers master the basics of network communications and use Huawei network devices to set up enterprise LANs and WANs, wired networks, and wireless networks, ensure network security for enterprises, and grasp cutting-edge computer network technologies. The content of this book includes: network communication fundamentals, TCP/IP protocol, Huawei VRP operating system, IP addresses and subnetting, static and dynamic routing, Ethernet networking technology, ACL and AAA, network address translation, DHCP server, WLAN, IPv6, WAN PPP and PPPoE protocol, typical networking architecture and design cases of campus networks, SNMP protocol used by network management, operation and maintenance, network time protocol NTP, SND and NFV, programming, and automation. As the world’s leading provider of ICT (information and communication technology) infrastructure and smart terminals, Huawei’s products range from digital data communication, cyber security, wireless technology, data storage, cloud-computing, and smart computing to artificial intelligence

Design and deployment of real scenarios of TCP/IP networking and it security for software defined networks with next generation tools

This thesis is about NSX, a Software Defined tool provided by VMware, to deploy and design virtual networks. The recent growth in the marked pushed companies to invest and use this kind of technology. This thesis explains three main NSX concepts and the basis to perform some deployments. Some use cases regarding networking and security are included in this document. The purpose of these use cases is to use them in real scenarios, which is the main purpose of the thesis. The budget to deploy these use cases is included as an estimation about how much a project like this would cost for the company. Finally, there are some conclusions and tips for best practices

Implementation and maintenance of telephony network through Avaya s8720: practice application in Fabrics Division at Barcelona

La empresa W.L. GORE and Asociados es una empresa multinacional con sede en Barcelona dedicada a la fabricación y venta de membranas de PTFE (Politetrafluoroetileno), un material transpirable e impermeable con múltiples aplicaciones en el mercado. Una de dichas aplicaciones consiste en insertar dicha membrana en prendas de ciclismo y running, lo que confiere cualidades extras al tejido y mejora el rendimiento del deportista. Aprovechando esta línea de negocio, se ha creado un departamento internacional de atención al cliente compuesto por seis personas, mediante el cual se pretende dar servicio tanto a tiendas como al cliente final para la solicitud de pedidos y cambios. Una vez aprobado el proyecto en Barcelona, se encarga al Departamento de Telecomunicaciones de la empresa su puesta en marcha. Para ello, se parte de los medios de los que dispone la empresa, fundamentalmente un servidor de telefonía Avaya S8700 y un customer service de productos médicos en activo. En este contexto, se ha utilizado una tecnología IP para las conexiones lógicas de los teléfonos y la centralita de tecnología PSTN. De este modo, utilizaremos telefonía IP en el recorrido entre los teléfonos y la centralita, y pasaremos a modo analógico una vez se haya determinado la gestión de las llamadas, tanto internas como externas. La parte más importante del proyecto, una vez asegurada la conexión entre los dispositivos, es la programación de los grupos de llamada. En nuestro proyecto, aplicaremos unas determinadas secuencias de encaminamiento para derivar la llamada a la persona más indicada en cada caso. En este escenario, se considerará la procedencia de la llamada (entorno europeo) y la persona que ha de atenderla, que deberá tener un determinado nivel de conocimiento de la lengua de origen de la llamada. Para dotar al sistema de robustez, deberemos determinar un encaminamiento especial o backup para aquellos casos en que no haya personas disponibles para atender la llamada, la llamada se realice fuera de horario de oficina, haya que enviar mensajes de voz especiales, etc. Una vez completada la parte de instalación e implementación, y una vez terminada la programación del sistema, deberán efectuarse las pruebas correspondientes para depurar errores, así como los cambios propios del mantenimiento de las líneas. Igualmente, se han llevado a cabo otras operaciones secundarias como la configuración del sistema en cintas redundantes, la implementación de buzones de voz, la posibilidad de desviar las líneas locales a internacionales, COS y COR y otras opciones adicionales en vectores y skills

Computer Network Design for Universities in Developing Countries

The purpose of this project is to design a suitable network system for universities in developing countries. The aim was to design a network with high-quality security and low cost, in such a way that network devices of universities in developing countries, will meet standards associated with the universities in developed countries. This project will help to enhance education in developing countries. There are many devices that were used in designing the network, such as routers, switches, backup, firewall, and servers. All devices were connected to each other to make integration network system and configured by putting IP addresses to all devices. Although the budget for this design network was low, it needed to have a high level of security. Accordingly, it incorporated several mechanisms including a firewall device that prevents any unfavorable data from entering into the network. Additionally, all devices in the network were secured by passwords, and these passwords were encrypted to be more secure. Moreover, each computer in the network was secured by antivirus programs and a backup system. This research discussed in details the budget challenges that the network faced in developing countries. Developing countries have a limited budget that affects choosing devices in the network such as servers. The servers used for this network design are DHCP server and DNS servers. This presentation and design included additional components such as a web server, mail server, etc

Computer Network Design for Universities in Developing Countries

The purpose of this project is to design a suitable network system for universities in developing countries. The aim was to design a network with high-quality security and low cost, in such a way that network devices of universities in developing countries, will meet standards associated with the universities in developed countries. This project will help to enhance education in developing countries. There are many devices that were used in designing the network, such as routers, switches, backup, firewall, and servers. All devices were connected to each other to make integration network system and configured by putting IP addresses to all devices. Although the budget for this design network was low, it needed to have a high level of security. Accordingly, it incorporated several mechanisms including a firewall device that prevents any unfavorable data from entering into the network. Additionally, all devices in the network were secured by passwords, and these passwords were encrypted to be more secure. Moreover, each computer in the network was secured by antivirus programs and a backup system. This research discussed in details the budget challenges that the network faced in developing countries. Developing countries have a limited budget that affects choosing devices in the network such as servers. The servers used for this network design are DHCP server and DNS servers. This presentation and design included additional components such as a web server, mail server, etc