Abstract

To perform network forensic analysis on an incident in software defined networking (SDN), logs are of the utmost importance. Without any logs, an investigator is not be able to complete and justify the forensic analysis. With the advancement of network and communication technologies, the volume of logs that needs to be collected and retained is growing exponentially big. The network administrators face the problems in maintaining such huge logs for longer period of time for forensic analysis. Network Providers rely on purging data based on a certain stipulated duration expected by the local rules for forensics evidence. SDN providers have limitations in managing such big data since the expense involved is commensurate with the duration of data retention. Here, in this work we propose a novel idea to reduce and summarize large forensic data sets for faster querying as well as reducing its space complexity by using bloom filters. Through this work we aim to propose a system which can deliver more optimized forensic data availability in SDN platform compared to existing systems.

Abstract

—Congestion in a network can cause several undesirable conditions such as packet loss, retransmission of packets, etc. There have been many variations of TCP for appropriate congestion control. These variations manage the sending rate of the users based upon the feedback they get from the network. In like manner, there are congestion control methods that take leverage of the Software Defined Networking and manage congestion from the controller. In this work we aim to manage congestion by coupling the activity of both the users and network controller in an SDN. We provide a utility based framework for a joint proactive and reactive mechanism for congestion control. We propose a system optimization function and show that our user and network congestion control methods optimize the system utility. Further, we simulate our model and show that our model significantly improves the system utility.

Abstract

The use of cell phones inside an aircraft is prohibited because cell phones pose a safety risk to aircraft systems and operations. Personal Electronic Device (PED) policies exist to avoid radio interference caused by the operation of cell phones in flight. The PED policies require passengers and crew members to stow away or use Airplane Mode when traveling by air. This paper focuses on studying the existing PED policies for the usage of cell phones inside an aircraft. We also study reports presenting technical data on why such a policy is required. We have also included individual experiences reported by passengers while travelling on how people react and behave when asked to turn on Airplane Mode or switch off their electronic devices. After establishing the problem, we discuss solutions that might switch off cell phones in flight or enable Airplane Mode automatically without any human intervention. We deliberate on three potential solutions (a) Mobile phone jammer, (b) Cellular Pico-cell onboard, (c) an Automatic Airplane Mode system. We propose creating an Automatic Airplane Mode System. We discuss various aspects of the proposed system, technical development choices and social features considerations. We discuss system development details and architecture along with the proposed uses of the system proposed. In the end, we conclude our work and list out some future scope activities.

Abstract

Congestion in a network can cause several undesirable conditions such as packet loss, retransmission of packets, etc. There have been many variations of TCP for appropriate congestion control. These variations manage the sending rate of the users based upon the feedback they get from the network. In like manner, there are congestion control methods that take leverage of the Software Defined Networking and manage congestion from the controller. In this work we aim to manage congestion by coupling the activity of both the users and network controller in an SDN. We provide a utility based framework for a joint proactive and reactive mechanism for congestion control. We propose a system optimization function and show that our user and network congestion control methods optimize the system utility. Further, we simulate our model and show that our model significantly improves the system utility.

Abstract

The use of cell phones inside an aircraft is prohibited because cell phones pose a safety risk to aircraft systems and operations. Personal Electronic Device (PED) policies exist to avoid radio interference caused by the operation of cell phones in flight. The PED policies require passengers and crew members to stow away or use Airplane Mode when traveling by air. This paper focuses on studying the existing PED policies for the usage of cell phones inside an aircraft. We also study reports presenting technical data on why such a policy is required. We have also included individual experiences reported by passengers while travelling on how people react and behave when asked to turn on Airplane Mode or switch off their electronic devices. After establishing the problem, we discuss solutions that might switch off cell phones in flight or enable Airplane Mode automatically without any human intervention. We deliberate on three potential solutions (a) Mobile phone jammer, (b) Cellular Pico-cell onboard, (c) an Automatic Airplane Mode system. We propose creating an Automatic Airplane Mode System. We discuss various aspects of the proposed system, technical development choices and social features considerations. We discuss system development details and architecture along with the proposed uses of the system proposed. In the end, we conclude our work and list out some future scope activities.

Abstract

The purpose of this research is to explore the possibilities and mechanisms to be followed in order to extend the QoS in the backbone networks. This paper extends the ideas discussed in my previous paper: A Novel Architecture to Enhance Quality of Service in IP Networks [1] explaining the consequences of the proposal and building a model network. Simulated an SDN network using mininet and presented the packet captures depicting the extension of QoS outside the access networks.

Abstract

The purpose of this research is to address the issue of enhancing the Quality of Service(QoS) in IP networks, to make it more optimal in a given network of networks using a novel approach. In this approach, QoS is provided to the packet even when the packet crosses its access network into the backbone. It proposes a new design or set of features in the routers which maps and translates the QoS provisioning from one network to the other. This paper targets at making the quality of service more dynamic by attempting to provide QoS not just at ingress or egress routers but also in the backbone network. In addition, it discusses the economic aspects for upgraded network infrastructure and also comments on the scenarios in which the proposed schema would be helpful along with the placement of dynamic QoS aware routers in the network of networks.

Abstract

The significance of anomaly detection is increasing as a result of the rapid increase in unknown attacks. With the increase in deployment of scalable web services, there is a need for developing a scalable anomaly detection mechanisms. In this paper, we propose a scalable anomaly-based Bot Detection Architecture (BotD) in which different anomaly-based bot detection algorithms can be implemented. Our architecture leverages NF scalability provided by Network Function Virtualization (NFV), and network programmability provided by Software Defined Networking (SDN). We have also proposed a loss-free state transfer technique across NFs. We have simulated our architecture using Mininet and Ryu controller, and tested the functioning of the architecture.