The policing option, when enabled, applies only to ingress traffic. Similarly, the shaping option, if enabled, applies only to egress traffic. For example, if a traffic descriptor has both policing and shaping enabled, the policing option is enforced for the ingress traffic, while the shaping option is enforced for the egress traffic. The following ATM service category conformance definitions are supported:
P0_1 – CBR
P0_1 and S0_1 – VBR.1
P0_1 and S0 – VBR.2
P0_1 and S0_Tag – VBR.3
P represents the peak rate, S represents the sustained rate, 0 or 1 represents the CLP value to which policing is applied if the cell is non-conforming, and Tag indicates that the CLP value has changed from 0 to 1. For example:
P0_1 — means that policing is applied to non-conforming peak rate cells with CLP values of 0 or 1
P0_1 and S0_Tag — means that policing is applied to non-conforming peak rate cells with CLP values of 0 or 1 and policing is applied to non-conforming sustained rate cells with a CLP value of 0 with the action to change the CLP value to 1