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
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 20 shows the sample configuration.
The following configuration shows the configuration statements for databases shown in Figure 20.
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]setsystem ldap server community
role primarysetsystem ldap server community
primary-neighbors C2setsystem ldap server community
secondary-neighbors C3Step-by-Step Procedure
- From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
[edit]
user@C1#
edit system ldap server community- Specify the database role as primary.
[edit system ldap server community]
user@C1#
set role primary- Specify primary neighbors.
[edit system ldap server community]
user@C1#
set primary-neighbors C2- Specify secondary neighbors.
[edit system ldap server community]
user@C1#
set secondary-neighbors C3Configuring 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
- From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
[edit]
user@C2#
edit system ldap server community- Specify the database role as primary.
[edit system ldap server community]
user@C2#
set role primary- Specify primary neighbors.
[edit system ldap server community]
user@C2#
set primary-neighbors C1- Specify secondary neighbors.
[edit system ldap server community]
user@C2#
set secondary-neighbors C3Configuring 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]setsystem ldap server community
role secondarysetsystem ldap server community
primary-neighbors C1 C2Step-by-Step Procedure
- From configuration mode, access the configuration statement that configures the Juniper Networks database in community mode.
[edit]
user@C3#
edit system ldap server community- Specify the database role as primary.
[edit system ldap server community]
user@C3#
set role secondary- Specify primary neighbors.
[edit system ldap server community]
user@C3#
set primary-neighbors C1 C2Related Topics