Software-Defined Simulations for Continuous Development of Cloud and Data Center Networks

Today I am presenting my full paper at CoopIS. This is one of the core works of my PhD, and something that I have been working for, for the last 2 years. The presentation and the abstract are given below. The full paper can be found here.

Today is also my last day at Rhodes, and back to Portugal tomorrow very early morning! It was an amazing week at this lovely island with full of sessions and networking. I also had another paper in the conference last year as well, which was held in the same location, same days. However, I was unable to physically join the conference due to clash in travel schedules. Luckily, this time I made it!

Software-Defined Simulations for Continuous Development of Cloud and Data Center Networks from Pradeeban Kathiravelu

Abstract: Cloud network systems and applications are tested in simulation and emulation environments prior to physical deployments, at different stages of development. Software-Defined Networking (SDN) enables separating logic and execution from the data plane consisting of switches and hosts, to a logically centralized control plane. The global view and control available to the controller enable incremental updates, management, and allocation of resources to the networks. However, unlike the physical networks or the networks emulated by the emulators, current network simulators still lack integration with the SDN controllers.

Hence, currently it is impossible to efficiently orchestrate a simulated network through a centralized controller, or realistically model the controller algorithms and SDN architectures without having the resources for a one-to-one emulation. To address this, this paper presents SDNSim, an SDN simulation middleware, which leverages the principles of SDN for continuous development of cloud and data center networks. SDNSim is an “SDN-aware” network simulator that integrates with the controller through plugins for southbound protocols such as OpenFlow, to execute the algorithms incrementally thus deployed in the control plane.

[TAVM] Energy and Carbon-Efficient Placement of Virtual Machines in Distributed Cloud Data Centers

This is the third and final presentation for the TAVM module. The presentation slides are given below, which I prepared by referring to the paper from the original authors. 

~~ Life in the small world..~~

London felt colder than Stockholm!

I presented my paper at UCC 2014, on the 8th of December, 2014. This is my master thesis paper. This is the second (also, the last) paper produced from my masters thesis.All the other papers from now onwards are my PhD papers. :P

UK has become the 10th country that I have visited. Have a long list to go. :D My London trip (7th - 12th, December 2014) had two interesting highlights. Second one was, I presented my paper, which was effectively the core of my master thesis work. It was a full paper (so I had 20 + 5 minutes to present).

First one was meeting my room mate (I only had one room mate so far - that was in Stockholm), who made my stay in Stockholm remarkably pleasant, sharing the happy and sad moments of life. We met after almost one year, as we both had moved to different universities, thanks to our mobility programs. 

When we move to another country (or even city), we start everything from the scratch. We learn new things; we change a bit; we hopefully improve. When we move out from the place, we don't move completely. We leave part of us wandering around, in the place that we lived. We become scattered - our memories become. I have only lived in 3 places so far - Colombo (Sri Lanka) -> Lisbon (Portugal) -> Colombo (Sri Lanka) -> Stockholm (Sweden) -> Lisbon (Portugal) was my life in a nutshell since 2012. When I left Lisbon to continue my studies in KTH, Stockholm, I missed Lisbon. Same happened to a considerable extend when I moved back to Lisbon. I missed Stockholm.

We always gain new friends - some we even call family - brothers and sisters from many countries. When we go back, the people we met may have moved out. But the memories remain. 

Meeting my brother who tolerated my weird nature and owl life style for one whole semester surely made a highlight of my London trip. I got the interesting updates since I left Stockholm, while having a quick tour around London. We will meet again. Small world, after all. 

Application Scheduling in CloudSim

[19/12/2013] Today was the last day at KTH, marking the completion of the semester 3. We did the final project presentations yesterday and today. My presentation slides on my project "Application Scheduling in CloudSim" are given below. I will miss my friends in the coming semester, as I am the only one EMDC guy returning to Lisbon.

Application scheduling in cloud sim from Pradeeban Kathiravelu, Ph.D.