Demonstration of Transport and Protection Schemes in a Multi-Service Testbed for MPLS-TP Networks

This paper proposes two novel protection schemes to provide efficient and reliable MPLS Transport Profile (MPLS TP) multi-service, which is particularly relevant for the traditional service (e.g. TDM, FR) and fast growing packet service (VoIP, IPTV and so on). Both the proposed schemes based on the interconnected rings structure extend the protection methods defined in the latest joint ITU-IETF draft standard to MPLS-TP ring structure, which is a widely deployed topology of legacy networks and has the natural ability to support resiliency. And they have an adapted OAM function which has the ability to monitor the multi-service status, such as configuration failures, software failures and performance degradation, to ensure the reliability of the whole branch and normal nodes in MPLS-TP rings. Finally, we present an innovative multi-service testbed for MPLS-TP networks to demonstrate the transport performance of interconnected rings. By validating dual-label and two extended protection schemes, hardware experimental results are given to show their influences on transport.