In order to label and trace the provenance of any simulated flow in multi-tenant network testbed
an interval-based flow watermarking and provenance tracing model was proposed.When a simulation flow was generated
this model first transformed the user's watermarking content into 0-1 bit sequence and then sent packets of the flow at particular intervals according to the 0-1 bit sequence to label the flow.When the simulation flow was captured by the model
the time intervals between packets in the flow were transformed into the 0-1 bit sequence so that the watermarking content could be extracted to trace the provenance of this simulation flow.The resilience against various known attack techniques is illustrated through theoretical analysis.Moreover
a large number of experiments prove the validity of this model in tracing simulation flows under both normal and abnormal circumstance.