A count of frames received that contain a valid SLD
field, as defined in [802.3ah] clause 65.1.3.3.1, and
pass the CRC-8 check, as defined in [802.3ah] clause
65.1.3.3.3, but are discarded due to the LLID check as
defined in [802.3ah] clause 65.1.3.3.2.
This attribute is relevant for an OLT and an ONU.