Resource Allocation and Provision for Bandwidth/Networks on Demand in SINET3

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 2008. In SINET3 each service network is implemented as a logical service network on a single network platform by effectively combining latest technologies including logical router capabilities of IP/MPLS routers and flexible resource allocation capabilities of layer-1 switches. SINET3 can also easily create logically separated experimental network environments for new research projects. Evaluation results on some capabilities in experimental environments and demonstration results on bandwidth-on-demand capabilities in the real network are also shown in this paper.