User guide

Chapter 6 – RouteFinder Software

Multi-Tech Systems, Inc. RouteFinder RF850/860 User Guide (PN S000400E) 99

Network Setup > High Availability

The High Availability module allows you to configure two RouteFinders to form a cluster to provide high

availability and reliability. The two RouteFinders act in active-standby configuration. They are setup as Master

and Slave. Master provides all the services, and Slave stands by waiting to take over if Master fails. Slave then

takes over all the resources and starts to serve. After the Master comes back up again, it takes back all the

resources and starts to serve again.

Components of High Availability

The High Availability module contains components that provide the RouteFinder a fail-safe capability, a virtual IP

Address on the LAN that forms the Cluster IP and a Configuration Synchronization module. The configuration of

High Availability is highly critical to its functionality, and a slight misconfiguration can render the RouteFinder

unusable. Therefore, great care must be taken when configuring High Availability.

Complete this screen the following order:

• Status in Cluster

• High Availability Configuration

• Cluster IP Address

• High Availability Status

• Synchronous Configuration

High Availability Status

Status

Check the Status box to enable High Availability. Note: Do NOT check this box until the

parameters for Status in Cluster, High Availability Configuration, and Cluster IP Address have been

set. If you accidentally check the Status box before entering these parameters, simply uncheck it

and click Save again.

Master / Slave Configuration

Status in Cluster

Select either Master or Slave to indicate whether the RouteFinder is to act as a Master or Slave in

the current cluster.