This read-write CmControlProtocolDispType object sets the Control Protocol Disposition specifically for IEEE 802.3ad Marker Protocol frames, identified by MAC address 01:80:C2:00:00:03, Ethertype 0x8809, and subtype 02, on an Ethernet Access Port. Admins configure this when deciding how link-aggregation Marker protocol frames (used to verify frame-distribution consistency in a LAG) should be treated at the access-port boundary, distinct from the closely related EFM OAM filter sharing the same MAC/Ethertype but a different subtype. For example, on an access port that is part of a customer-facing link aggregation group, an admin would set cmEthernetAccPortCpdV2LACPMarkerDispType to pass so Marker protocol frames needed for proper LAG verification aren't inadvertently dropped.