If immediate synchronization between your replicas is not critical, you can schedule replication during periods of low network usage. Replication of data should complete significantly faster when the network is more available.
You can schedule replication to start and end at a certain time of day, on a daily or weekly basis. You can do this independently for every consumer through its replication agreement. The new schedule will take effect immediately, causing the next replication of data for the corresponding consumer to be delayed until first allowed by the schedule.
You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.
Modify the replication schedule.
$ dsconf set-repl-agmt-prop -h host -p port suffix-DN \ host:port repl-schedule:value
For example, if you want to set replication to occur between 2:00 and 4:00 every night, type:
$ dsconf set-repl-agmt-prop -h host2 -p 1389 dc=example,dc=com host1:1389 \ repl-schedule:"0200-0400 0123456"
where 0123456 indicate the days of the week, with 0 representing Sunday, 1 representing Monday, and so on.