  Edge & Fog computing have received considerable attention as promising
candidates for the evolution of robotic systems. In this letter, we propose
COTORRA, an Edge & Fog driven robotic testbed that combines context information
with robot sensor data to validate innovative concepts for robotic systems
prior to being applied in a production environment. In lab/university, we
established COTORRA as an easy applicable and modular testbed on top of
heterogeneous network infrastructure. COTORRA is open for pluggable robotic
applications. To verify its feasibility and assess its performance, we ran set
of experiments that show how autonomous navigation applications can achieve
target latencies bellow 15ms or perform an inter-domain (DLT) federation within
19 seconds.
