Simulation of Structured Streams Transport Protocol using Network Simulator 2

There has been a lot of efforts from researchers lately to deploy alternativetransports protocols and mechanisms on providing better packet ordering anddelivery semantics. The current development of Internet and Streamingtechnologies suggests that there is a clear need for such alternatives to TCPTransport Protocols. Structured Streams Transport protocol(SSTP) is a newtransport abstraction introduced lately on ACM and it is based on a differentapproach compared to other alternative transports. Main objective of SSTP is toenhance the TCP's byte stream abstraction to permit high level applications to usecontinuous byte streams in larger numbers easily and more efficiently. SST is stillin an early experimental stage and the aim of this study is to develop a new modulefor this Protocol so it can be simulated and tested on the mostly used scientificnetwork simulator in NS2. By implementing the module in NS2, we can simulatemany aspects of this protocol and fine-tune it before we implement it on high levelapplications

L'Unione Europea e l'Euroregione Adriatica

2011/2012La tesi percorre la nascita dell'unione europea e il suo sviluppo fino al giorno d'oggi. Le sue istituzioni, norme, trattati e infine la nascita del nuovo soggetto di politica transfrontaliera, l'euroregione.XXV Ciclo198

Employing Ethernet Multiple Spanning Tree Protocol in an OpMiGua network

Hybrid optical packet/circuit switched networking architectures are increasingly becoming an interesting research field. They integrate and combine the high resource utilization of statistically multiplexed packet switched networks with the low processing requirements and guaranteed quality of service provided by circuit switched networks. The aim of this thesis is to integrate the OpMiGua hybrid optical network with Ethernet. Specifically, the work is focused on the compatibility of the Ethernet\u92s loop-free topology protocols with the redundant multiple traffic service paths of OpMiGua. We analyse the problems and limitations imposed on the network architecture and propose our topology solution called the SM chain-connectivity. The analysis and the proposed schemes are verified based on results obtained from simulations. Furthermore, we design an integrated logical OpMiGua node that relies on an Ethernet switch instead of the Optical Packet Switch for the Statistically Multiplexed traffic. To date, to our knowledge there are no studies analysing the compatibility of Ethernet and its protection mechanisms in a hybrid optical network. This is the first work addressing the use of Ethernet in OpMiGua

Scheduling and performance of hybrid traffic in a data center optical core switch2014 16th International Conference on Transparent Optical Networks (ICTON)

The development of software defined networking (SDN) has instigated a growing number of experimental studies which demonstrate the flexibility in network control and management introduced by this technique. Optical networks add new challenges for network designers and operators to successfully dimension and deploy an SDN-based in the optical domain. At present, few performance evaluations and scalability studies that consider the high-bandwidth of the optical domain and the flow characterization from current Internet statistics have been developed. In this paper these parameters are taken as key inputs to study SDN scalability in the optical domain. As a relevant example an optical ring Metropolitan Area Network (MAN) is analyzed with circuit and packet traffic integrated at the wavelength level. The numerical results characterize the limitations in network dimensioning when considering an SDN controller implementation in the presence of different flow mixes. Employing flow aggregation and/or parallel distributed controllers is outlined as potential solution to achieve SDN network scalability

Scalability analysis of SDN-controlled optical ring MAN with hybrid traffic2014 IEEE International Conference on Communications (ICC)

The development of software defined networking (SDN) has instigated a growing number of experimental studies which demonstrate the flexibility in network control and management introduced by this technique. Optical networks add new challenges for network designers and operators to successfully dimension and deploy an SDN-based in the optical domain. At present, few performance evaluations and scalability studies that consider the high-bandwidth of the optical domain and the flow characterization from current Internet statistics have been developed. In this paper these parameters are taken as key inputs to study SDN scalability in the optical domain. As a relevant example an optical ring Metropolitan Area Network (MAN) is analyzed with circuit and packet traffic integrated at the wavelength level. The numerical results characterize the limitations in network dimensioning when considering an SDN controller implementation in the presence of different flow mixes. Employing flow aggregation and/or parallel distributed controllers is outlined as potential solution to achieve SDN network scalability

High-Speed Transport and Aggregation for Ethernet Fronthaul with Low and Bounded Delay

3-Node integrated packet/circuit Ethernet network experiment demonstrates aggregation and add/drop of 10Gb/s fronthaul links on a 100Gb/s path. Bounded 5.9-μs maximum end-to-end delay and 1.24μs PDV is achieved, even when combining with less delay-sensitive traffic

A Traffic Pattern Adaptive Mechanism to Bound Packet Delay and Delay Variation in 5G Fronthaul

A novel packet-based adaptive mechanism for bounding delay and delay variation in 5G Ethernet fronthaul is proposed. The mechanism enables aggregation of asynchronous traffic from fronthaul links using a traffic pattern adaptation algorithm. Traffic of a first stream is added in time-gaps of a second stream. For bounding and balancing the packet delay and delay variation between the streams, the size of the required time-gap before insertion is made adaptive. Simulation results demonstrate that through suitable tuning of the algorithm parameters, packet delay and delay variation below 10 microseconds can be achieved