[f-nsp] Exactly what does 'sticky' base its stickiness on

Chris Price cprice at its.to
Mon Jun 2 15:47:16 EDT 2008


Can 'sticky' L4 persistence be combined with HTTP 'cookie switching' to 
get distribution of load across http real servers? Ay negative affects 
of doing this? Any benefits? The F5 systems I have worked on provide 
this as one of the 'easy' persistence drop downs in the F5 web gui.

 From what you are saying below, if I enable SSL 'session-id', I should 
disable L4 'sticky' for a SSL real server - they should be treated as 
mutualy exclusive. Correct?


Mike Allen wrote:
> Sticky is source ip alone.  Turning on SSL session id or cookie 
> switching would use those instead, although the initial setup (with 
> sticky enabled) would use source ip prior to setting up a ssl session, 
> so I would turn off sticky for ssl if you are doing session switching, 
> otherwise you will see some funny load balancing.
>  
> Mike
>
> On Mon, Jun 2, 2008 at 10:30 AM, Chris Price <cprice at its.to 
> <mailto:cprice at its.to>> wrote:
>
>      I've been thru the SLB guide and cant find any info on exactly
>     what teh foundry bases its stickiness on.
>
>     Is it source ip alone, or source ip plus some sort of session id.
>     What about client cookies or jsessionid's?
>
>     If this is covered in a document, please point me at it and save
>     the typing space for all involved.
>
>     Cheers!
>
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