Aerohive New Features Guide
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Empirical Analysis of the Effects and the Mitigation of Ipv4 Address Exhaustion
TECHNISCHE UNIVERSITÄT BERLIN FAKULTÄT FÜR ELEKTROTECHNIK UND INFORMATIK LEHRSTUHL FÜR INTELLIGENTE NETZE UND MANAGEMENT VERTEILTER SYSTEME Empirical Analysis of the Effects and the Mitigation of IPv4 Address Exhaustion vorgelegt von M.Sc. Philipp Richter geboren in Berlin von der Fakultät IV – Elektrotechnik und Informatik der Technischen Universität Berlin zur Erlangung des akademischen Grades DOKTOR DER NATURWISSENSCHAFTEN -DR. RER. NAT.- genehmigte Dissertation Promotionsausschuss: Vorsitzender: Prof. Dr.-Ing. Sebastian Möller, Technische Universität Berlin Gutachterin: Prof. Anja Feldmann, Ph.D., Technische Universität Berlin Gutachter: Prof. Vern Paxson, Ph.D., University of California, Berkeley Gutachter: Prof. Steve Uhlig, Ph.D., Queen Mary University of London Tag der wissenschaftlichen Aussprache: 2. August 2017 Berlin 2017 Abstract IP addresses are essential resources for communication over the Internet. In IP version 4, an address is represented by 32 bits in the IPv4 header; hence there is a finite pool of roughly 4B addresses available. The Internet now faces a fundamental resource scarcity problem: The exhaustion of the available IPv4 address space. In 2011, the Internet Assigned Numbers Authority (IANA) depleted its pool of available IPv4 addresses. IPv4 scarcity is now reality. In the subsequent years, IPv4 address scarcity has started to put substantial economic pressure on the networks that form the Internet. The pools of available IPv4 addresses are mostly depleted and today network operators have to find new ways to satisfy their ongoing demand for IPv4 addresses. Mitigating IPv4 scarcity is not optional, but mandatory: Networks facing address shortage have to take action in order to be able to accommodate additional subscribers and customers. Thus, if not confronted, IPv4 scarcity has the potential to hinder further growth of the Internet. -
Emulation of the IP Core Network for Testing of the Service GPRS Support Node (SGSN) Routing Application
Technical report, IDE0959, November 2009 Emulation of the IP Core Network for Testing of the Service GPRS Support Node (SGSN) Routing Application Master’s Thesis in Computer Network Engineering Hossein Torkaman School of Information Science, Computer and Electrical Engineering Halmstad University Emulation of the IP Core Network for Testing of the Service GPRS Support Node (SGSN) Routing Application Master’s thesis in Computer Network Engineering School of Information Science, Computer and Electrical Engineering Halmstad University Box 823, S-301 18 Halmstad, Sweden November 2009 Description of cover page picture: IP Core Network picture on GPRS Networks. Preface The following report is based on the data and information gathered through literature studies, Ericsson’s Intranet documents and other several GPRS standards published by 3rd Generation Partnership Project (3GPP), observations, emulating different IP core network scenarios, meetings and executed experiments during December 2008 - August 2009 at Ericsson AB Lindholmen. The input martial to this thesis formed primarily by Internet Protocols and Drivers section in Product Development Department Packet Core at Ericsson AB, Göteborg, Sweden with leadership of Gunilla Zachrisson, my supervisor, to whom I should give an immense thank you due to her kind guidance on each phase of project and for her valuable supports on the implementation of improvements. I am also thankful to my manager, Matthew Crockett, who also made me feel welcomed at Ericsson AB Lindholmen. A big thanks is also directed to my supervisor at Halmstad University, Tony Larsson, for pointing me in the right direction and for the feedback regarding the performance of the project. I would also like to use this opportunity to thank Colin Taylor and Daniel Nilsson and all other colleagues at Ericsson, for interrupting their busy schedules in order to provide me with their technical feedback and experience. -