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Parallel transmission is one of the popular techniques to realize huge bandwidth between two network nodes. However, in parallel transmission, many packet order inversions will be occurred when the delay difference among the routes is large, and TCP throughput will be drastically decreased under such a circumstance. In this paper, a TCP over SCTP (Stream Control Transmission Protocol) parallel transmission...
This paper describes the implementation and evaluation of layer-1 bandwidth-on-demand (BoD) capabilities in the Japanese academic backbone network, called SINET3. The network has a nationwide GMPLS-based layer-1 platform and provides reservation-based and signaling-based BoD services. The overall architecture for providing BoD services including its capabilities, user interface, path calculation,...
This paper describes the network design and configurations of the new Japanese academic infrastructure, called SINET3, which provides a rich variety of network services to more than 700 universities and research institutions. Since the start of full-scale operations in June 2007, the network has expanded its services to include multi-layer transfer services (IP, Ethernet, and layer-1), enriched virtual...
This paper describes flexible resource allocation and provision methods for bandwidth on demand and networks on demand in the new Japanese academic backbone network, called SINET3. SINET3 has provided a wide variety of network services such as IPv4/IPv6 dual stack, L3VPN, L2VPN/VPLS, and L1VPN services for the research and education community and started layer-1 bandwidth-on-demand services in February...
This paper describes the QoS control capabilities in the new Japanese academic network, SINET3. SINET3 is a nationwide QoS-aware multi-layer network for more than 700 universities and research institutions and provides a variety of high-quality network services including packet-based QoS services and circuit-based bandwidth-on-demand services. These diversified network services are provided by effectively...
We present a graceful vertical handover scheme that provides graceful performance degradation during an upward vertical handover in heterogeneous overlay networks. This scheme harmonizes the functions performed by different layers, i.e., from the link layer to the application layer, and consequently smoothens the change in the throughput and reduces data losses in the network during a handover. By...
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