Investigating the inter-domain forwarding offset in the context of dynamic end-to-end Stream reservation in multi-domain time sensitive networks

Abstract

The constantly growing TSN toolbox offers runtime reconfiguration for dynamic end-to-end stream reservation. While inter-domain communication in TSN has been identified to be required for various use cases, the control plane interactions are not defined yet. This paper presents Multi-Domain Time-Sensitive Networks (MDTSNs) integrating east-westbound communication in the TSN control plane to enable on-demand multi-domain end-to-end bounded-latency stream configuration. An inter domain forwarding offset (IDFO) has been identified to emerge when setting up streams in MDTSN. This paper investigates the IDFO, presents control plane mitigation mechanisms which are implemented and evaluated in a physical MDTSN test environment.