Alcatel-Lucent OmniSwitch 6800 Series - Modifying Optional Parameters; Modifying the Ping Period; Modifying the Ping Timeout

Configuring Server Load Balancing Modifying Optional Parameters
OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008 page 34-27
Modifying Optional Parameters
As shown in the table on page 34-3, Alcatel-Lucent’s SLB software is preconfigured with default values
for the SLB cluster’s distribution algorithm, “sticky” time, ping timeout, ping period, and ping retries. The
following subsections describe how to modify these parameters.
• Modifying the Ping Period. You can modify the ping period with the ip slb cluster ping period
command, which is described in “Modifying the Ping Period” on page 34-27.
• Modifying the Ping Timeout. You can modify the ping timeout with the ip slb cluster ping timeout
command, which is described in “Modifying the Ping Timeout” on page 34-27.
• Modifying the Number of Ping Retries. You can modify the number of ping retries with the ip slb
cluster ping retries command, which is described in “Modifying the Ping Retries” on page 34-28.
Modifying the Ping Period
The default ping period (i.e., the time interval at which the health of servers is checked) is 60 seconds.
You can modify this value from 0 (this will disable the ping) to 3600 seconds with the ip slb cluster ping
period command by entering ip slb cluster, the name of the SLB cluster, ping period, and the user-speci-
fied number of seconds.
For example, to set the ping period on an SLB cluster called “Web_Server” to 1200 seconds enter:
-> ip slb cluster Web_Server ping period 120
Note. If you set the ping period to any value other than 0, then the ping period must be greater than or
equal to the ping timeout value divided by 1000. For example, if the ping timeout is 5000 milliseconds,
the ping period must be at least 5 seconds. The ping timeout value can be modified with the ip slb cluster
ping timeout command, which is described in “Modifying the Ping Timeout” on page 34-27.
Modifying the Ping Timeout
The default ping timeout is 3000 milliseconds. You can modify this value from 0 to 1000 times the value
of the ping period with the ip slb cluster ping timeout command by entering ip slb cluster, the name of
the SLB cluster, ping timeout, and the user-specified number of milliseconds.
For example to set the ping timeout on an SLB cluster called “Web_Server” to 1000 milliseconds enter:
-> ip slb cluster Web_Server ping timeout 1000
Note. You can modify the ping period with the ip slb cluster ping period command, which is described
in “Modifying the Ping Period” on page 34-27.