LB::persist questions

Hi,

 

 

Is LB::persist used to return the persistence profile in use on the current virtual server? Can anyone confirm what it's used for and what options there are for it?

 

 

I am trying to troubleshoot an issue with persistence and ASM when using nodes defined on port 0 and saw this command in the _ASM_clientside rule.

 

 

Here are some results I got:

 

 

Testing with a standard HTTP VIP without ASM, with the default source address persistence profile:

 

 

log local0. "\[LB::persist\]: [LB::persist]"

 

output: : [LB::persist]: source_addr 0

 

 

log local0. "\[LB::persist key\]: [LB::persist key]"

 

output: : [LB::persist key]: source_addr :: 0

 

 

b persist show all output:

 

 

PERSISTENT CONNECTIONS --

 

Mode: source addr Value: 192.168.99.38

 

Virtual: 192.168.101.41:http Node: 192.168.101.43:http Age: 2sec

 

 

When I change the VIP to use cookie and source address persistence as the default and fallback persistence methods, I see:

 

 

log local0. "\[LB::persist\]: [LB::persist]"

 

: [LB::persist]: cookie

 

 

log local0. "\[LB::persist key\]: [LB::persist key]"

 

: [LB::persist key]:

 

 

 

And here are the errors I received from the iRuler when trying to use other options for LB::persist:

 

 

log local0. "\[LB::persist\]: [LB::persist test]"

 

[invalid option "test" must be: key cookie] [test]

 

 

log local0. "\[LB::persist\]: [LB::persist cookie]"

 

[wrong args] [LB::persist cookie]

 

 

log local0. "\[LB::persist\]: [LB::persist cookie test]"

 

[wrong args] [LB::persist cookie test]

 

 

Thanks,

 

Aaron