Passive Optical Networks

called ONT management and control interface (OMCI), with the OLT function

as the master and ONU as slaves.

An ATM connection called ONT management and control channel (OMCC)

provides the communication channel for OMCI. An OMCC is established by

activating a pair of VPI/VCI using the particular PLOAM messages specified in

ITU-T G.983.1. ITU-T G.983.2 requires each ONU to use a different VPI for the

OMCC channel.

The G.983.2 standard specifies the management information bases (MIBs)

with different parameters required for managing various APON objects and

their behaviors. The OAM functions and parameters described in this standard

are also applicable to the APON successor G-PON, except that different imple-

mentations of OMCI and OMCC are adopted.

2.6.2 ...