The REDUNDANCY panel allows you to configure of the
backup LVS router node and set various heartbeat monitoring options.
The first time you visit this screen, it displays an "inactive"
Backup status and an
ENABLE button. To configure the backup LVS
router, click on the ENABLE button so that the
screen matches Figure 10-4.
Figure 10-4. The REDUNDANCY Panel
- Redundant server public IP
Enter the public real IP address for the backup LVS router
- Redundant server private IP
Enter the backup node's private real IP address in this text
If you do not see the field called
Redundant server private IP, go back to the
GLOBAL SETTINGS panel and enter a
Primary server private IP address and click
The rest of the panel is devoted to configuring the heartbeat channel,
which is used by the backup node to monitor the primary node for
- Heartbeat Interval (seconds)
This field sets the number of seconds between heartbeats — the
interval that the backup node will check the functional status of
the primary LVS node.
- Assume dead after (seconds)
If the primary LVS node does not respond after this number of
seconds, then the backup LVS router node will initiate failover.
- Heartbeat runs on port
This field sets the port at which the heartbeat communicates with the
primary LVS node. The default is set to 539 if this field is left
Remember to click the ACCEPT button after
making any changes in this panel to make sure you do not lose
any changes when selecting a new panel.