Active - Active or 2-way replication is very similar to 1-way replication. This is used when changes can be made to both databases and they both must be kept in sync.
It can be viewed as 2 x 1-way replication, with an outer (1-way) loop and an inner (1-way) loop as seen in the following diagram:
The differences between 1-way replication and 2-way replication are:
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With 2-way replication the table listing in the console can so long that the prompt cannot be seen. By default, 30 tables are listed for each replication, thus for a 2-way replication, it takes up to 70 screen lines.
To change this, edit the *-MINE.ddc file and add line "set STATUS_BAR_ACTIVE_TABLES 5". Or enter this command at the console prompt. Restart the console for this change to take affect.