The table below lists and explains names and meanings of the IP parameters. These values are tuned by editing the /etc/default/LifeKeeper configuration file.

Parameter Name Meaning Setting Value Default Value When to Apply Notes
IP_PINGTRIES Number of ping retries that will be performed during an IP health check. Integers 3 As required (takes effect immediately)
IP_PINGTIME Time in seconds that LifeKeeper waits for one packet ping reply during IP health check. Integers 1 As required (takes effect immediately) When using a manually configured Ping List rather than the broadcast ping mechanism, any value greater than 3 for this tunable is ineffective, because the Linux TCP/IP implementation always returns a “Destination Host Unreachable” error after 3 seconds with no reply, regardless of the timeout value specified in the ping command.
IP_QUICKCHECK_TIMEOUT Increases the time before quickCheck is marked as failed when added to /etc/default/LifeKeeper.

The default time allowed for the IP quickcheck to complete is 12 seconds.
Integers 12 As required (takes effect immediately) Setting this value does not require stopping or restarting any LifeKeeper processes.
NOIPUNIQUE Disables the IP uniqueness checking done when an IP resource is brought in-service. By default LifeKeeper will ensure the IP address is not in use somewhere else on the network. 0: enabled

1: disabled

0 As required (takes effect immediately)
NOBCASTPING Disables the broadcast ping mechanism for checking the health of IP resources. 0: enabled

1: disabled

0 As required (takes effect immediately)
IP_NOLINKCHECK Disables the link status check portion of the IP health check. 0:enabled

1: disabled

0 As required (takes effect immediately) This setting may need to be disabled on virtual environments, specifically after this message in the logs “Link check failed for virtual IP”.
IP_MAX_LINKCHK The maximum number of seconds to wait for the link to come back up after it has been repaired. In some environments, it may be necessary to increase this value. Integers 5 As required (takes effect immediately)
IP_WAIT_LINKDOWN Number of seconds to wait in between taking the protected network interface down and back up. A delay between these two actions is necessary in some environments. Integers 5 As required (takes effect immediately)


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