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Oracle® Database Net Services Administrator's Guide 10g Release 2 (10.2) Part Number B14212-02 |
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# What's New in Oracle Net Services?

This section describes the new networking features of Oracle Database 10g and provides pointers to additional information. New features information from previous releases is also retained to help those users migrating to the current release.

The following sections describe the new networking features:

- Oracle Database 10g New Features in Oracle Net Services

## Oracle Database 10g New Features in Oracle Net Services

The new features for Oracle Net Services in Oracle Database 10g include:

- Naming Changes

  - Easy Connect Naming Method for TCP/IP Environments

    For TCP/IP environments, you can simplify client configuration by using the easy connect naming method. The easy connect naming method simplifies network management by allowing clients to connect to Oracle Database database services without first configuring net service names. Instead, clients make connections with the host name and optional port and service name of the database.

    See Also: "Using the Easy Connect Naming Method" for configuration details

  - De-support of Oracle Names

    Oracle Names is no longer supported as a naming method in Oracle Database. You must migrate to directory naming for centralized storage of connect identifiers.

  - Simplified Directory Naming Configuration

    Clients no longer require local directory usage configuration (`ldap.ora`). If an Oracle Internet Directory Server is registered with the Domain Name System (DNS), clients can automatically locate a directory server, eliminating the need for local configuration.

    See Also: "Adding or Modifying Entries in the Directory Server" "Client Connections Using Directory Naming"

- Backing Up Directory Naming Entries to a Local Naming File

  You can now export directory naming entries into a local `tnsnames.ora` file. Clients can use the locally saved file when a directory server is unavailable or when clients have not been updated to use directory naming.

  See Also: "Exporting Directory Naming Entries to a tnsnames.ora File" for instructions

- Performance Enhancements

  - High-Speed Network Support

    Oracle protocol support now includes support for the SDP protocol for Infiniband high-speed networks. The SDP protocol is a high-speed communication protocol that speeds up performance between the Oracle Application Server and the database. By using SDP, applications place most of the messaging burden upon the network interface card, freeing the CPU for other tasks.

    NOTE: The SDP protocol is only available on some platforms. Please refer to the operating system-specific documentation for more information.

    See Also: "Performance Between the Middle Tier and Oracle Database" for an overview

  - I/O Buffer Space Configuration

    To ensure the continuous flow of data and better utilization of network bandwidth, you can specify the I/O buffer space limit for send and receive operations of sessions.

    See Also: "Configuring I/O Buffer Space" for configuration details

  - Network Outage Detection Parameters

    You can limit the time permitted for send and receive operations, preventing the database server from being blocked by a network I/O request.

    See Also: "Configuring Advanced Profile Information" for an overview

- Configuration with Oracle Enterprise Manager

  Oracle Enterprise Manager provides the following support in Oracle Database 10g:

  - Configuration and administration of listeners

  - Configuration of the local naming and directory naming methods

  - Configuration of network files across multiple file systems

    See Also: "Oracle Enterprise Manager"

- Simplified Dispatcher Configuration

  In 10g, the DISPATCHERS parameter does not have to be specifed in order to enable shared servers. If it is not and shared server is configured then a dispatcher listening on TCP/IP port 1521 is started automatically. Configuration of the `DISPATCHERS` parameter is required for dispatchers that do not listen on the TCP/IP protocol or require other optional subparameters.

  See Also: Chapter 12, "Configuring Dispatchers"

- Oracle Connection Manager Improvements

  - New scalable architecture that includes a listener process, monitor process, and multiple gateway processes

  - Dynamic configuration

  - Enhanced access control

    See Also: Chapter 11, "Configuring and Administering Oracle Connection Manager"