docs Loadbal3 Chg Over Status Cmd

The load balancing MAC Management Message exchange type used by the CMTS for the change-over operation in the ChgOver object commit operation. - 'ucc' indicates the usage of Upstream Channel Change (UCC) messages exchange. - 'dcc' indicates the usage of Dynamic Channel Change (DCC) messages exchange. - 'dbc' indicates the usage of Dynamic Bonding Change (DCC) messages exchange - 'crossMD' although this term does not correspond to a MAC Management Message type, it indicates the movement of a CM to a different MAC Domain that includes a sequence of different MAC Management Messages types (i.e. DCC to move the CM to the correct MAC Domain, followed by channel assignment in REG-RSP-MP).