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Example: Configuration for a Database Community

 

A community of Juniper Networks databases lets you set up redundancy for client applications that connect to these databases.

This sample configuration describes the tasks for configuring Juniper Networks databases on C Series Controllers:

Requirements

Software

Hardware

Minimum SRC Release 1.0.0

C2000 or C4000

Overview and Sample Topology

You configure a number of Juniper Networks databases as members of a community to protect data by replicating data from one database to another, and by specifying relationships between databases to support failover if a database that has the primary role for a set of applications becomes inoperable. This example uses C1 and C2 as databases that have a primary role, and C3 as a database that has a secondary role.

Figure 1 shows the sample configuration.

Figure 1: Sample Community of Juniper Network Databases
 Sample Community of Juniper Network
Databases

The following configuration shows the configuration statements for databases shown in Figure 1.

Configuration

Configuring C1

CLI Quick Configuration

To quickly configure a Juniper Networks database, copy the following commands into a text editor, and modify them; then load the configuration from the file.

Step-by-Step Procedure

To configure the C1 system:

  1. From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
  2. Specify the database role as primary.
  3. Specify primary neighbors.
  4. Specify the connection type of the primary neighbors as clear.
  5. Specify secondary neighbors.
  6. Specify the connection type of the secondary neighbors as clear.

Configuring C2

CLI Quick Configuration

To customize the configuration example for your needs, copy the following commands into a text editor, and modify them; then load the configuration from the file.

Step-by-Step Procedure

To configure the C2 system:

  1. From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
  2. Specify the database role as primary.
  3. Specify primary neighbors.
  4. Specify the connection type of the primary neighbors as clear.
  5. Specify secondary neighbors.
  6. Specify the connection type of the secondary neighbors as clear.

Configuring C3

CLI Quick Configuration

To customize the configuration example for your needs, copy the following commands into a text editor, and modify them; then load the configuration from the file.

Step-by-Step Procedure

To configure the C3 system:

  1. From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
  2. Specify the database role as primary.
  3. Specify primary neighbors.
  4. Specify the connection type of the primary neighbors as clear.