Persistence Questions

Hi all,

 

 

We have a v9.3.x BigIP sitting in front of two LDAP's (specifically Sun Directory Server), as part of an Sun OpenSSO deployment.

 

 

The documentation which is out of date (http://docs.sun.com/app/docs/doc/820-5985/gfoaa?l=en&q=opensso&a=view) says to set the pool persistence to "simple" with a time out of 300 seconds.

 

 

Our networks guys have promptly told me that the persistence is now set per VIP - cool, no problems with that.

 

 

But also that the "Simple" persistence setting doesn't exist on our BigIP's.

 

 

They've suggest the "SIP" profile - but can't tell me exactly what that persistence profile does.

 

 

Can someone make a suggestion around what we should be using in terms of persistence? We are looking for the BigIP to persist per TCP connection. Maybe this is the default behaviour??

 

 

From what I understand LDAP connections are long lived and reused for multiple requests. We have replication going on between the SDS boxes, and so want to make sure that all the requests in a connection go to the one SDS so they aren't trying to replicate as much, compared to if each request was going to a different box.

 

 

As a footnote though - if a connection is persisted to one of the boxes in the pool - and that box dies - does the F5 reset the persistence and pass that request over to one of the other boxes in the pool (transparently to the box that made the request)? The network guys seem to think it will just drop the rest of that connection (potentially reset it).

 

 

Thanks!