Dynamic shared Layer 1 VPN provisioning in next-generation SONET/SDH networks

Rapid advances in next-generation SONET/SDH and optical switching along with GMPLS control have enabled many new service provisioning capabilities. In particular, a key paradigm is the new Layer 1 virtual private network (L1 VPN) framework, which allows clients to directly provision their own services without deploying expensive infrastructures. This paper proposes novel L1 VPN resource management schemes for virtual concatenation-enabled next-generation SONET/SDH networks, using both centralized and distributed control. Detailed performance analysis results are also presented.