You can modify configuration parameters that affect the current SAP Replication Server by using configure replication server at the SAP Replication Server.
To change default configuration parameter values using configure replication server, log in to SAP Replication Server and execute configure replication server at the isql prompt.
configure replication server set config_param to 'value'
The config_param string must match an entire parameter name. You may have to restart SAP Replication Server for the new parameters to take effect.
configure replication server set ha_failover to 'on'
See Configure the Replication System to Support SAP Failover in the Administration Guide Volume 2.
Restart the SAP Replication Server.
Configuration changes take effect after you restart Replication Server.
See configure replication server in the Reference Manual .
Be aware of parameters affecting security and see Performance Tuning in the Administration Guide Volume 2 for parameters affecting performance.