FINAL REPORT

ITC571 - Project Proposal and Plan

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Subject	ITC571 – Emerging Technology and Innovations
Assignment No	Project Proposal and Plan
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Evaluation of Telecommunication Equipment Delays in Software Defined Networks

Quality service has characteristics of usability, availability, integrity, continuity and secure services. When considering the quality of telecommunication equipment, we can see there are time delays. Therefore, when designing SDN with different input flows of information with considering quality services it is important to evaluate the time delays in telecommunication (Buzhin & Mironov, 2019). Operations on SDN switches with various data transmission process controlling its capabilities that will lead to a significant delay.

1. INTRODUCTION

Currently there many tasks of session and application levels within the telecommunication networks that are superimposed on the telecommunication equipment of the transport and channel levels. Due to the existing scenario, separating the control functions and data transfer functions among various telecommunication equipment is crucial (Kreutz, Ramos & Verissimo, 2013). The same need has led to the development of technology software-defined networks (SDN). In the contemporary communication networks, there’s high demand on the quality of telecommunication service when it comes to communication exposure. Communication service’s quality is dependent on the quality of the functioning of the network that characterizes the capability of meeting the needs of consumers. Quality of service thus becomes the indicator as to how much the user is satisfied (Sezer et al., 2013). The delay created by the telecommunication service can also be considered as a part of consumer service. Therefore, when developing a software-defined network that are aligned with the different informational impact, with a given level of quality of service, it is necessary to evaluate time delays in telecommunications equipment.

2. RATIONALE

The main reason behind the use of SDN is to isolated the traffic transfer functions from the control functions. The isolation is made possible due to the existence of a special software controlled by the network administrator and capable of separating the server. Routers and switches are merged under the control of Network Operating System(SOS) (Kreutz, Ramos & Verissimo, 2013). The SOS provides applications with access to network management and further monitors the configuration of network facilities on a constant basis. When SDN is developed the core of its creation is the network operating system. additionally, the presence of the software defined network is crucial because the technology behind the software-defined networks makes the operation and maintenance of the network connections simpler. This is the technology that is widely used for internet.

A network operating system plays the role of defining the interconnection of the upper level protocol group that provide the basic network functions like service operation, object addressing, data security, and network management. In this case, SOS will be applicable and the traditional use of SOS changes from SOS as an operating system to SOS as a software system that offers monitoring, resource management and access (Boero, Marchese & Patrone, 2018). It is through this definition that SOS changes meaning when it comes to this scenario and hence it is considered as an SDN controller. The operating system on the other hand provides a program interface instead of managing the network. Thus the solution to network management as a task is left to the application implemented depending on the network operating system API. Software – defined networks has a technology that simplified the network connection maintenance and operations in an automated manner. Furthermore, this technology is popular and it is expected that it will contribute to increasing communication, sharing of information and interaction among business participants.

3. Supervisor Approval - Yes

4. Research Questions

The propose research project will be aimed at examining the time delays in telecommunication equipment network. One significant factor is that the mathematical models of the switch controllers to the software defined networks are created based on the formulas that are derived from estimating the time delays.

Determining the time delays in the telecommunication equipment of these networks is expected to be crucial since the time delays are dependent on the switch and the controller on the main equipment parameters, which in turn have a fundamental influence on the delays. The researcher hopes to use a mathematical model of the functioning of the SDN switch and the SDN controller. Using the models, the researcher will obtain the formulas that will be used to obtain the effects that the delays will have on the software. Consequently, the obtained results will help in designing a software-configured network that can function based on the various information impacts and have a given level of quality of service.

5. Conceptual or Theoretical Framework

To solve the separation of the level of control as well as data transfer, the entire process will take place in SDN framework. This is because within this SDN switch, data transfer levels are the only processes that are implemented. It is however worth noting that the controller does not manage the network, instead it only offers an API for the management (Kreutz, Ramos & Verissimo, 2013). The SDN controller further extracts data on the state of all network resources and provides access to them for network management applications.

A deeper understanding of the switch reveals that the switch is armed with a set of flow tables that together make up the addressing pipeline also called pipeline. These pipelines comprise of one or several tables that are connected by serials. Then there is the package header that is made up of several fields. There is a common rule that the fields should indicate the identifiers of the network protocols (Sezer et al., 2013). The addressing table carries with it flows records and instructions needed when applying actions to a packet. It is significant to realise that the packet headers contain information that will begin to match. In case matches are identified the corresponding action is then transferred to packet. The controller for its part will manage the contents of the addressing tables belonging to the subordinate switches (Shin & Gu, 2013). The switch will the process every single message it gets from the controller and in many cases there will be a possibility of forming a response if need arises. Finally, there is the OpenFlow protocol that gives reliable information delivery processing, even though it does not provide automated order processing of information or auto-information delivery.

For the project to be successful it will be important to create a mathematical model that will show the functioning of the SDN switch and also the SDN controller. Using this model, the researcher expects to obtain the formulas that can be used to estimate the delays that arise in the telecommunication equipment of the software-defined networks (Sezer et al., 2013). The quality of the telecommunication services will be found in the combination of services and properties determined by the quality of the network as it is functioning. This will thus show how much the users are being satisfied. It is noteworthy that when designing a network communication, its main purpose is to ensure there is quality of communication that comes with it. One of the key factors that will impact on the quality of service (QoS) is the delays (Shin & Gu, 2013). In other words, the time that it will take for messages to be sent and to reach their destination will determine how the quality is judged or rated.

The model of the switch is also crucial and in this case, the SDN will be used as a queuing network that is composed of two significant segments. The first segment of this switch is the input queue of the switch of the device used to read information coming from the packet headers. The second part is the part that flows the addressing table (Boero, Marchese & Patrone, 2018). Two independent Poisson flows of intensity λ1 and λ2 requests come to the input of the queuing network. Consequently, any requests coming from the intensity λ1 will correspond to the message packets received at the control port of the switch, requests with intensity λ2 correspond to the remaining packets received from the networks at the switch.

6. Methodology

Method

There are formulas used to measure the waiting time for the queue in switch operation model which are; and also as second part of the switch model is estimated as;

Finally, the total delays are calculated as; w = w1 + w2 + w3

The linear queuing system with r waiting places used for the algorithm for the functioning of SDN controller and at the same time the time of service of every application with any device C is expanded with a parameter .

The delay for stationary distribution of a message will be estimated in this model. To measure the total probability, the formula used with considering the distribution function of the stationary which showed as Wcon(x) as the waiting time of the message for the maintenance which is mentioned below;

Based on the formulas they have constructed graphs to explain the delays of telecommunication equipment of software defined networks.

Conclusion

In this article the researcher is interested in investigating the time delays in the telecommunication equipment since this is what determines the level of user satisfaction. The researcher expects that he will extract formula from the time delays in the telecommunication equipment software-defined networks, namely, in the SDN switch and the SDN controller. Furthermore, the researcher is also expecting to obtain the dependence of the time delay in the SDN switch on the ratio of the intensity of the incoming flow to the intensity of packet processing. The researcher hypothesizes that an increase in the ratio of the intensity of the incoming flow to the intensity of packet processing will increase the total delay in the SDN switch. Additionally, the researcher expects that the dependence of the average message dwell time in the SDN controller on the number of logical cores of the packet processing processor and the formation of responses by the SDN switch was obtained. As a result, it was found that with an increase in the number of logical cores of the message processing processor and the generation of responses to switch requests, the time delay in the SDN controller decreases.

7. Project Plan

1. Deliverables

The outcome of this research is depending on what cause delays in telecommunication equipment of software defined networks and how to calculate these delays. The main consequence for the delays in the software defined networks switch through input stream in depth, the rate of processing of incoming packets and number of entries in the addressing table. Parameter value has been taken through plotting the dependencies from datasheet. Considering the following graph, we can see total delay in the SDN switch has increased (Buzhin & Mironov, 2019).

2. Gantt chart

3. Duration – Weekly tasks

Week	Task
1	Read Research papers and try to understand the purpose of the researches.
2	Selected a research paper and got approval from the lecturer when attending to the class.
3	Analyzed the research paper and completed the Abstract to submitted to the turnitin as the first assignment.
4	Worked for project proposal. Tried to understand the calculations done by the researcher and presented as I understood.
5	Completed project proposal and plan and showed to the lecturer when attending to the lecturers. Add some points as told by lecturer and submitted as the second assignment.
6	I should search the other research articles that will be matching to my research topic done by different authors
7	I need to gather more information about methodologies.
8	Try to develop new ideas according to my topic.
9	Need to work for next assignment annotated bibliography and journal synopsis according last two weeks information gathering and new creations.
10	Complete the assignment and need to show it to the lecturer before submit.
11	Need to do corrections if have to according to the lecturer’s comments and marks gave for last assignments.
12	Need to develop the project for final submission.

8. REFERENCES

Boero, L., Marchese, M., & Patrone, F. (2018). The impact of delay in software-defined integrated terrestrial-satellite networks. China Communications, 15(8), 11-21.

Buzhin, I. G., & Mironov, Y. B. (2019, March). Evaluation of Telecommunication Equipment Delays in Software-Defined Networks. In 2019 Systems of Signals Generating and Processing in the Field of on-Board Communications (pp. 1-6). IEEE.

Kreutz, D., Ramos, F., & Verissimo, P. (2013, August). Towards secure and dependable software-defined networks. In Proceedings of the second ACM SIGCOMM workshop on Hot topics in software defined networking (pp. 55-60). ACM.

Sezer, S., Scott-Hayward, S., Chouhan, P. K., Fraser, B., Lake, D., Finnegan, J., ... & Rao, N. (2013). Are we ready for SDN? Implementation challenges for software-defined networks. IEEE Communications Magazine, 51(7), 36-43.

Shin, S. W., & Gu, G. (2013, August). Attacking software-defined networks: A first feasibility study. In ACM SIGCOMM workshop on Hot topics in software defined networking (pp. 165-166). SIGCOMM.

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