Yet another sticky/persistent sessions question

[Mathew Snyder]

I'm looking at the perlbal webpage (http://www.danga.com/perlbal/) and I 
see that it lists "Persistent client connections (configurable)" as one 
of its capabilities as a reverse proxy.  I'm still slightly confused 
because I've not found anything online that provides definitive 
confirmation that Perlbal can handle persistent sessions.  Or, am 
misinterpreting this and incorrectly calling "persistent client 
connections" sticky sessions.

We're looking to update our load balancing configuration and if we are 
able to get the one function from Perlbal we will be able to seriously 
consider its use.  Otherwise we'll have to go a different route.

Thanks for the help,
Mathew