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JimRiley_106607's avatar
JimRiley_106607
Icon for Nimbostratus rankNimbostratus
Feb 17, 2012

Order of Precedence of several settings

Hello,

 

I have these settings: iRule 9to select a pool) on a VS, source_addr persistence, and Node Priority (2;1) in two 2-node pools.

 

With all three set, which is the order of precedence used by the F5?

 

thanks

 

Jim Riley / WMATA DC

 

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  • JRahm's avatar
    JRahm
    Icon for Admin rankAdmin
    Feb 20, 2012
    the iRule will override persistence in as much as you can direct to another pool, or select a different pool member, but then the source persistence will be applied to that selection on egress. To override that you can use persist none on your selection. With regards to node priority, that only comes into play when there are failures, but there isn't a direct correlation between the precedence of persistence/iRule and a node or pool member priority. If it's available and has been promoted to service, THEN the precedence of persistence and/or the iRule conditions will apply.