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The task of the initialization process is to maximize the throughput and reliability of the link. This process is also transparent to the vendors choice of the method of separating upstream and downstream signals (either FDM or echo cancellation). See also section gif.

The channel attribute values determined by the initialization procedure include the number of bits and relative power levels to be used on each DMT sub-carrier, as well as any messages and final data rates information. Table gif describes the main stages of the initialization procedure.

Table: Overview of initialization

Kimmo K. Saarela
Mon Mar 6 12:47:27 EET 1995