This object allows specification of Policer Envelope Coupling Flag. When coupling is enabled, tokens that would normally be added to the C-bucket are passed to the E-bucket only once the CIR bucket has reached its CBS level. Therefore under this condition the E-bucket is being filled at the rate of CIR + EIR. Normally the long term average of frames declared yellow, which is bounded by the EIR. Coupling is a function to allow the long term average of frames declared yellow to be bounded by CIR + EIR. This allows a higher volume of yellow frames to be delivered/received if the arrival of green marked frames is low. Tokens from the E-bucket do NOT get passed to the C-bucket once the EBS level has been reached. Enabling coupling in combination with a provisioned EIR of 0 allows for a single rate three color marking (srTCM) algorithm to be established. In this situation the E-bucket is filled at the CIR rate in the case the C-bucket is filled to its CBS level