Extreme Networks ExtremeWare 7.7, Command Reference Manual

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530 ExtremeWare 7.7 Command Reference Guide
SLB Commands—“i” Series Switches Only
configure slb global tcp-port-check
configure slb global tcp-port-check frequency <seconds> timeout <seconds>
Description
Configures the default health checking frequency and timeout period using layer 4-based TCP port
testing.
Syntax Description
Default
The default frequency is 30 seconds.
The default timeout is 90 seconds.
Usage Guidelines
The frequency must be less than the timeout.
The TCP port check is the least intrusive health check, because it does not log in to or access the server.
If the frequency and timeout are not specified for a specific node, the global values are used. You can
configure a node to override the global values using the following command:
configure slb node <ip address> : <L4 port> tcp-port-check
To enable TCP port checking, use the following command:
enable slb node tcp-port-check
Example
The following command sets the global TCP port check frequency to 15 seconds and timeout to
45 seconds:
configure slb global tcp-port-check frequency 15 timeout 45
History
This command was first available in ExtremeWare 6.1.
Platform Availability
This command is available on all “ i ” series platforms.
frequency Specifies the frequency of the TCP port check. The range is 5 to 120 seconds.
timeout Specifies the timeout of the TCP port check. The range is 5 to 300 seconds.