This read-write switch controls traps generated when CFM's Y.1731 frame-loss measurement detects excessive frame loss specifically in the near-end direction, loss measured on this local maintenance endpoint's view of the path, with disabling it suppressing those near-end loss alerts. Separating near-end from far-end (see the sibling FrameLossFar object) loss measurement lets an admin determine which direction of a bidirectional Ethernet service is actually dropping frames, which matters because a unidirectional fiber or optics issue can cause loss in only one direction. A customer reporting one-way audio dropouts, combined with a near-end frame-loss trap but no far-end one, would point specifically to a problem on this local end's receive or measurement path rather than the remote end.