Hemant, That configuration was usual for Apps 11.0.x and prior, but with 11i it is strongly recommended to take the default configuration and leave the ConcMgr on the apps-tier instread of the db-tier.
Two major reasons: * The gains in manageability (especially upgrades) far outweigh the incremental (possible) loss in performance. For tuning, tune the SQL, don�t assume its network. For example, upgrading the db-tier is now a snap, as compared to performing such an upgrade for 10.7 or 11.0.x... * There is not as much network back-and-forth in 11i batch programs and reports as there used to be. Enormous numbers of stored procedures and packages are now being used, making the ConcMgr programs much less �chatty�
