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SRC-PE Release 1.0.x Getting Started Guide > Managing the Juniper Networks Database > Example: Configuration for a Database Community

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 platforms:

Requirements

Software

Minimum SRC Release 1.0.0

Hardware

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 configured to have a secondary role.

Figure 15 shows the sample configuration.


Figure 15:
Sample Community of Juniper Network Databases

The following configuration shows the configuration statements for databases shown in Figure 15:

Configuration

Configuring C1

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.

[edit] 

    set system ldap server community role primary

    set system ldap server community primary-neighbors C2 

    set system ldap server community secondary-neighbors C3

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. [edit]

    user@C1# edit system ldap server community
  2. Specify the database role as primary.
    3. [edit system ldap server community]

    user@C1# set role primary
  3. Specify primary neighbors.
    4. [edit system ldap server community]

    user@C1# set primary-neighbors C2
  4. Specify secondary neighbors.
    5. [edit system ldap server community]

    user@C1# set secondary-neighbors C3

Configuring C2

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.

[edit] 

    set system ldap server community role primary

    set system ldap server community primary-neighbors C1 

    set system ldap server community secondary-neighbors C3

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. [edit]

    user@C2# edit system ldap server community
  2. Specify the database role as primary.
    3. [edit system ldap server community]

    user@C2# set role primary
  3. Specify primary neighbors.
    4. [edit system ldap server community]

    user@C2# set primary-neighbors C1
  4. Specify secondary neighbors.
    5. [edit system ldap server community]

    user@C2# set secondary-neighbors C3

Configuring C3

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.

[edit] 

    set system ldap server community role secondary

    set system ldap server community primary-neighbors C1 C2

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. [edit]

    user@C3# edit system ldap server community
  2. Specify the database role as primary.
    3. [edit system ldap server community]

    user@C3# set role secondary
  3. Specify primary neighbors.
    4. [edit system ldap server community]

    user@C3# set primary-neighbors C1 C2

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