A configurable CLI command enables accounting of the frame overhead at ingress or egress. This is a system wide parameter and affects the behavior of the ingress meter or egress rate. When disabled, the queue rates and egress-rate do not account for the Ethernet frame overhead. By default frame-based accounting is disabled for both ingress and egress. Frame overhead is always accounted for on egress (queue rates and egress rate) and the user has no option to disable it.
The egress port rate limiter (ERL) calculation is also frame based, and the user has no option to disable it; ERL can be applied on the port to shape the egress rate.
On the 7210 SAS-Mxp, frame-based accounting for service meters is not supported.
Frame-based accounting for SAP egress aggregate meters is not supported on the 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, 7210 SAS-Sx 10/100GE, and 7210 SAS-R6 and 7210 SAS-R12 in port scheduler mode.