Advances in next-generation SONET/SDH along with GMPLS control architectures have enabled many new service provisioning capabilities. In particular, a key services paradigm is the emergent Layer 1 virtual private network (L1 VPN) framework, which allows multiple clients to utilize a common physical infrastructure and provision their own 'virtualized' circuit-switched networks. This precludes expensive infrastructure builds and increases resource utilization for carriers. Along these lines, a novel L1 VPN services resource management scheme for next-generation SONET/SDH networks is proposed that fully leverages advanced virtual concatenation and inverse multiplexing features. Additionally, both centralized and distributed GMPLS-based implementations are also tabled to support the proposed L1 VPN services model. Detailed performance analysis results are presented along with avenues for future research.
© 2006 Optical Society of America
Original Manuscript: November 29, 2005
Revised Manuscript: March 20, 2006
Manuscript Accepted: March 24, 2006
Published: April 20, 2006
N. Ghani, M. V. Muthalaly, D. Benhaddou, and W. Alanqar, "Layer 1 VPN services in distributed next-generation SONET/SDH networks with inverse multiplexing," J. Opt. Netw. 5, 367-382 (2006)