13 Enabling Advanced Features of Oracle Net Services

Understand how to configure the advanced features of Oracle Net Services, including advanced connect data parameters, load balancing, failover, and connections to non-database services.

• Configuring Advanced Network Address and Connect Data Information
  A database service can be accessed by several routes and protocol addresses. You configure which routes to use by setting a list of protocol addresses. You configure order addresses by specifying address parameters.
• Understanding Connection Load Balancing
  The connection load balancing feature improves connection performance by balancing the number of active connections among multiple dispatchers.
• Configuring Transparent Application Failover
  Transparent Application Failover (TAF) instructs Oracle Net to transparently reconnect a failed connection to a different listener in the event of the failure of a database instance. This enables you to continue your work using the new connection as if the original connection never failed.
• Specifying the Instance Role for Primary and Secondary Instance Configurations
  The INSTANCE_ROLE parameter is an optional parameter for the CONNECT_DATA section of a connect descriptor. It enables you to specify a connection to the primary or secondary instance of Oracle RAC configurations.
• Configuring Static Service Registration
  The listener uses the dynamic service information about the database and instance before using statically configured information in the listener.ora file.
• Configuring Connections to Third-Party Database Services
  Learn about external procedures settings in the listener.ora file, changing the default configuration for external procedures, configuring the Oracle database server for connecting to Heterogeneous Services agents, and configuring clients for connecting to the Oracle Rdb database.