Alcatel-Lucent 6850-48 Network Guide

Modifying Optional Parameters

Configuring Server Load Balancing

page 44-28

OmniSwitch AOS Release 6 Network Configuration Guide

As shown in the table on 

, Alcatel-Lucent’s SLB software is preconfigured with default values 

for the SLB cluster’s “sticky” time, ping timeout, ping period, ping retries, and relative weight (prefer-
ence). The following subsections describe how to modify these parameters.

• Modifying the Ping Period. You can modify the ping period with the 

command, which is described in 

.

• Modifying the Ping Timeout. You can modify the ping timeout with the 

command, which is described in 

• Modifying the Number of Ping Retries. You can modify the number of ping retries with the 

 command, which is described in 

.

• Modifying the Relative Weight of an SLB Cluster Server. You can configure server preferences 

within a cluster by modifying the relative weight of each server with the 

 

command, which is described in 

.

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 

 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 

 command, which is described in 

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 

 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 

 command, which is described in 

.