Description of the UPPAAL Models for SRP and CSRP and Verification of their Termination and Consistency Properties

Authors Daniel Bujosa Mateu | Inés Álvarez Vadillo | Julián Proenza Arenas
In arXiv:2007.15712 [cs.NI], July, 2020.

The IEEE Audio Video Bridging (AVB) Task Group (TG) was created to provide Ethernet with soft real-time guarantees. Later on, the TG was renamed to Time-Sensitive Networking (TSN) and its scope broadened to support hard real-time and critical applications. The Stream Reservation Protocol (SRP) is a key work of the TGs as it allows reserving resources in the network, guaranteeing the required quality of service (QoS). AVB’s SRP is based on a distributed architecture, while TSN’s is based on centralized ones. The distributed version of SRP is supported and used in TSN. Nevertheless, it was not designed to provide properties that are important for critical applications. Therefore, we propose a new version of SRP with enhanced services called Consistent Stream Reservation Protocol (CSRP). In this document we describe the SRP and CSRP UPPAAL models we developed and the queries we used to verify their termination and consistency properties.


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