This read-write Integer32 object (1-100000), in cells-per-second, identifies the Sustained Cell Rate for the PVC in the ingress direction, applicable only to VBR connection types; VISM does not perform traffic shaping itself, but this value is used for setting up parameters on the end-to-end PVC, and a SET request is rejected if this value exceeds vismConnPCR. Since VISM doesn't enforce shaping locally, this value's real function is informing the ATM network's own shaping and admission control about the expected sustained rate for this VBR connection. An engineer configuring a VBR connection would ensure this SCR value stays below the configured PCR, since the agent will reject the SET otherwise.