Oracle Enterprise Manager Installation Guide

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Network Topology Generator

For users with an existing SQL*Net installation, the Oracle Network Topology Generator is provided. You should use the Network Topology Generator if you have an existing SQL*Net installation without the SQL*Net configuration tool, Network Manager 3.1.

With the Network Topology Generator, you can:

Note: The tnsnames.ora file must be correctly formatted. Only SQL*Net Version 2 connect strings are accepted.

Note: The topology file creates the relationships between the services, such as databases, and the nodes that they reside on. The tnsnames file identifies the names, but not the types, of the services in the network. When the Network Topology Generator generates a topology file from a tnsnames file, it defaults all services to databases and attempts to create the node name using the network address that is read.

Creating a New topology.ora File

Attention: The Network Topology Generator can only read a tnsnames.ora or a topology.ora file.

Note: If any of the generated entries are incorrect, you need to modify them. See the following section, "Editing an Existing topology.ora File."

Editing an Existing topology.ora File

The Network Topology Generator also allows you to modify your topology.ora file. You can easily add new entries, edit or delete existing entries.

Adding New Entries

Warning: Although the Network Topology Generator lets you save your modification to any filename, this utility can ONLY output topology.ora files. Be careful not to overwrite the tnsnames.ora file.

Warning: When you save a file using the default topology.ora filename, the existing topology.ora file is overwritten with a new file containing the modifications. The old topology file is not appended.

Modifying Existing Entries

To edit an existing entry, select an entry from the Service Name multi-column list and click on the Edit button. The Network Service Details dialog box appears with all fields active except the Service Name. Enter the desired parameters and click OK. From the Service Name List dialog box, click the Write button to create a new topology.ora file.

Deleting Entries

To delete an existing entry, select an item from the Service name multi-column list and click on the Delete button. Click on the Write button to create a new topology.ora file.


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