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1	Link failure detection in OSPF network using OpenFlow protocol Pamulapati, Santhan 21 May 2014 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / The study of this thesis is focused on reducing the link failure detection time in OSPF network. When a link failure occurs, OSPF protocol detects it using RouterDeadInterval time. This timer is fired only after a predefined time interval, thus increasing the time of convergence after the link failure. There are previous studies to reduce the RouterDeadInterval time, but they introduce other effects which are discussed later in the thesis. So, a novel approach is proposed in this thesis to reduce the link failure detection time with the help of emerging network architecture Software Defined Networking (SDN) and OpenFlow Protocol. OpenFlow (Computer network protocol) Computer-aided engineering Computer-aided design System analysis Computer network protocols Computer network architectures Routers (Computer networks) Linux
2	OpenFlow based load balancing and proposed theory for integration in VoIP network Pandita, Shreya 21 May 2014 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / In today's internet world with such a high traffic, it becomes inevitable to have multiple servers representing a single logical server to share enormous load. A very common network configuration consists of multiple servers behind a load balancer. The load balancer determines which server would service a clients request or incoming load from the client. Such a hardware is expensive, runs a fixed policy or algorithm and is a single point of failure. In this paper, we will implement and analyze an alternative load balancing architecture using OpenFlow. This architecture acquires flexibility in policy, costs less and has the potential to be more robust. This paper also discusses potential usage of OpenFlow based load balancing for media gateway selection in SIP-PSTN networks to improve VoIP performance. Computer capacity -- Management Internet telephony -- Computer programs OpenFlow (Computer network protocol) Internetworking (Telecommunication) Computer-aided engineering Software engineering Computer organization Computer network architectures Computer network protocols Multimedia systems -- Computer programs Instant messaging -- Computer programs Switching theory

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Link failure detection in OSPF network using OpenFlow protocol

OpenFlow based load balancing and proposed theory for integration in VoIP network